87
                                      79
                                      92
                                      91
                                      37
                                      41
                                      42
                                      44
                                      43
0.89 lbs ai/acre, 1, NA, 7 days, dry[1]
                                      AR
                                      CA
                                      LA
                                      MS
                                      TX
                                      101
                                      106
                                      100
                                      99
                                      100
                                      51
                                      53
                                      51
                                      51
                                      51
                                      51
                                      53
                                      50
                                      50
                                      50
                                      26
                                      27
                                      26
                                      26
                                      26
                                      2.7
                                      3.1
                                      3.1
                                      3.5
                                      3.1
                                      1.4
                                      1.5
                                      1.6
                                      1.8
                                      1.7
                                      1.4
                                      1.6
                                      1.6
                                      1.8
                                      1.6
                                      0.7
                                      0.8
                                      0.8
                                      0.9
                                      0.9
0.66 lbs ai/acre, 1, NA, 7 days, dry
                                      AR
                                      CA
                                      LA
                                      MS
                                      TX
                                      71
                                      74
                                      71
                                      71
                                      72
                                      37
                                      38
                                      37
                                      36
                                      37
                                      36
                                      37
                                      36
                                      36
                                      36
                                      19
                                      19
                                      19
                                      18
                                      19
                                      1.8
                                      2.0
                                      2.1
                                      2.2
                                      2.1
                                      0.9
                                      1.0
                                      1.1
                                      1.1
                                      1.1
                                      0.9
                                      1.0
                                      1.1
                                      1.1
                                      1.1
                                      0.5
                                      0.5
                                      0.6
                                      0.6
                                      0.6
0.44 lbs ai/acre, 2, 10 days, 7 days, dry[1]
                                      AR
                                      CA
                                      LA
                                      MS
                                      TX
                                      83
                                      88
                                      83
                                      81
                                      84
                                      43
                                      45
                                      42
                                      42
                                      43
                                      42
                                      44
                                      42
                                      41
                                      42
                                      22
                                      23
                                      21
                                      21
                                      22
                                      2.7
                                      2.9
                                      2.8
                                      3.0
                                      2.9
                                      1.4
                                      1.5
                                      1.4
                                      1.5
                                      1.5
                                      1.4
                                      1.5
                                      1.4
                                      1.5
                                      1.5
                                      0.7
                                      0.8
                                      0.7
                                      0.8
                                      0.8
0.44 lbs ai/acre, 2, 10 days, 7 days, flooded[3]
                                      AR
                                      CA
                                      LA
                                      MS
                                      TX
                                      NA
                                      365
                                      375
                                      356
                                      360
                                      365
                                      NA
                                      183
                                      188
                                      178
                                      180
                                      183
                                      NA
                                      39
                                      40
                                      39
                                      45
                                      42
                                      NA
                                      20
                                      20
                                      20
                                      23
                                      21
     1 Release modeled 7 days after flooding.  Time period allows for dry applied product to partition to water phase from sediment phase.  Given persistence in water, this delay does not result in any significant degradation before release. The field was flooded 24-hours after the last application.
     2 1[st] application is made to dry soil, while the 2[nd] application is made while the rice paddy is flooded.  The 30-day holding period is applicable to an 8-inch paddy depth, while a 55-day holding period is applicable to a 4-inch paddy depth.
     3 Release modeled 7 days after last application.  As flooding for wet applications occurs prior to planting, holding times are greater than 7 days.  Given persistence in water, this delay does not result in any significant degradation before release.
 Pesticides in Flooded Applications Model (PFAM) with the Index Reservoir
      PFAM estimates exposure in the rice paddy effluent, which is eventually mixed with surface water which potentially flows to a drinking water intake.  Mixing of rice paddy water with other surface water will result in dilution of the paddy water and reductions in the drinking water concentrations; this is especially true for estimated chronic concentrations.  In order to account for this, PFAM was set up to flow (mass and volume) into the index reservoir, the standard drinking water body used by EFED to estimate surface water source drinking water concentrations (USEPA, 2010) using the varying volume pond model (FIFRA SAP, 2004).  This portion of the model is still under development and evaluation, so the derived estimates are provisional.  The inputs for this version of PFAM were the same as the previous inputs outlined in Table 10.

      The 1-in-10 year acute and 1-in-10-year chronic EDWCs from the Arkansas, California, Louisiana, Mississippi, and Texas scenarios are provided in Table 16.  Compared to the results depicted in Table 11, the addition of the index reservoir results in significant reductions in EDWCs for glufosinate-ammonium, but in some cases results in increased concentrations of MPP.  For a particular use rate, results for the various simulated regions were similar for glufosinate-ammonium, but the California region consistently produced the highest MPP EDWCs, presumably due to the lower rainfall in California compared with the other States.  Because there is less rainfall, there is less runoff from the watershed.  The runoff from the watershed is used to fill the reservoir and generate flow out of the reservoir, resulting in a dilution of the concentrations in the index reservoir over time.  An analysis of the PFAM runs indicates it takes approximately 645 days to flush the index reservoir in California, whereas in Texas it takes 171 days to flush the index reservoir and less than 105 days for Arkansas, Louisiana, and Mississippi.  This longer residence time, coupled with the persistence of MPP in aerobic aquatic environments, results in increased concentrations for MPP, as MPP continues to accumulate in the California index reservoir from year to year.  In general, results generated using PFAM coupled with the index reservoir indicate 73-85% and 4-47% reductions from peak to annual average concentrations for glufosinate-ammonium and MPP, respectively.  Reductions in acute to chronic concentrations were 76% and 3% for glufosinate-ammonium and MPP, respectively, using PFAM without-the-index-reservoir, and accounting for aerobic aquatic degradation separately.  It should also be noted that, unlike the previous model runs, the 8-inch paddy concentration results are higher than those generated for the 4-inch paddy.  This occurs because the larger volume discharged from an 8-inch paddy as compared with a 4-inch paddy more than compensates for the lower concentration, in terms of pesticide load delivered to the reservoir.

Table 16.  Results from PFAM analysis with the index reservoir
Use rate, number of apps, retreatment interval, water holding period, application timing
                                     Site
                             Glufosinate-ammonium
                                      MPP

                                  Acute EDWC
                                    (ug/L)
                          Annual Average EDWC (ug/L)
                                  Acute EDWC
                                    (ug/L)
                          Annual Average EDWC (ug/L)

                                     4"
                                     8"
                                     4"
                                     8"
                                     4"
                                     8"
                                     4"
                                     8"
1.46 lbs ai/acre, 1, NA, 7 days, dry[1]
                                      AR
                                      CA
                                      LA
                                      MS
                                      TX
                                      49
                                      44
                                      44
                                      47
                                      46
                                      52
                                      46
                                      47
                                      50
                                      49
                                      11
                                      11
                                       8
                                       9
                                       9
                                      11
                                      11
                                       8
                                       9
                                       9
                                      32
                                      105
                                      24
                                      31
                                      45
                                      34
                                      112
                                      25
                                      33
                                      48
                                      23
                                      98
                                      14
                                      22
                                      33
                                      24
                                      105
                                      15
                                      23
                                      35
0.73 lbs ai/acre, 2, 10 days, 30/55 days, flooded[2]
                                      AR
                                      CA
                                      LA
                                      MS
                                      TX
                                      98
                                      90
                                      105
                                      87
                                      88
                                      153
                                      158
                                      144
                                      141
                                      147
                                      22
                                      22
                                      18
                                      21
                                      18
                                      27
                                      39
                                      22
                                      24
                                      24
                                      104
                                      342
                                      77
                                      109
                                      136
                                      128
                                      502
                                      101
                                      134
                                      180
                                      66
                                      313
                                      47
                                      59
                                      108
                                      81
                                      463
                                      56
                                      82
                                      123
0.89 lbs ai/acre, 1, NA, 7 days, dry[1]
                                      AR
                                      CA
                                      LA
                                      MS
                                      TX
                                      30
                                      27
                                      27
                                      29
                                      28
                                      32
                                      28
                                      28
                                      30
                                      30
                                       7
                                       7
                                       5
                                       5
                                       5
                                       7
                                       7
                                       5
                                       5
                                       6
                                      20
                                      64
                                      15
                                      19
                                      27
                                      21
                                      68
                                      15
                                      20
                                      29
                                      14
                                      60
                                       8
                                      13
                                      20
                                      15
                                      64
                                       9
                                      14
                                      21
0.66 lbs ai/acre, 1, NA, 7 days, dry
                                      AR
                                      CA
                                      LA
                                      MS
                                      TX
                                      23
                                      18
                                      20
                                      22
                                      20
                                      24
                                      19
                                      21
                                      23
                                      22
                                      4.8
                                      4.7
                                      3.6
                                      4.1
                                      4.0
                                      5.0
                                      5.1
                                      3.9
                                      4.3
                                      4.2
                                      14
                                      45
                                      10
                                      13
                                      19
                                      15
                                      48
                                      11
                                      14
                                      20
                                      9.7
                                      42
                                      6.3
                                      9.2
                                      14
                                      10
                                      45
                                      6.6
                                      9.7
                                      15
0.44 lbs ai/acre, 2, 10 days, 7 days, dry[1]
                                      AR
                                      CA
                                      LA
                                      MS
                                      TX
                                      28
                                      22
                                      24
                                      25
                                      25
                                      29
                                      23
                                      25
                                      26
                                      27
                                       6
                                       6
                                       4
                                       4
                                       5
                                       6
                                       6
                                       4
                                       5
                                       5
                                      19
                                      53
                                      13
                                      15
                                      22
                                      19
                                      56
                                      13
                                      16
                                      23
                                      12
                                      50
                                       7
                                      11
                                      18
                                      13
                                      54
                                       8
                                      12
                                      19
0.44 lbs ai/acre, 2, 10 days, 7 days, flooded[2]
                                      AR
                                      CA
                                      LA
                                      MS
                                      TX
                                      NA
                                      178
                                      185
                                      173
                                      173
                                      176
                                      NA
                                      30
                                      46
                                      26
                                      28
                                      28
                                      NA
                                      117
                                      515
                                      94
                                      128
                                      174
                                      NA
                                      75
                                      476
                                      54
                                      82
                                      118
   1 Release modeled 7 days after flooding.  Time period allows for dry applied product to partition to water phase from sediment phase.  Given persistence in water, this delay does not result in any significant degradation before release. The field was flooded 24-hours after the last application.
   2 Release modeled 7 days after last application.  As flooding for wet applications occurs prior to planting, holding times are greater than 7 days.  Given persistence in water, this delay does not result in any significant degradation before release.

Uncertainty Analyses
      The refined Tier I model and PFAM without-the-index-reservoir provide estimates of pesticide active ingredient in the effluent water discharged from a treated rice paddy, which are considered to constitute conservative concentration estimates for community water supply intakes near rice production areas.  EDWCs developed using these models may overestimate concentrations at drinking water intakes located significantly downstream of rice-growing areas, because they do not account for associated dilution.

      In running PFAM, the conservative assumption was employed, that no flooding events occurred prior to permanent flood.  A common practice in rice production is to "flush" the fields 2-3 times between planting and establishment of the permanent flood, depending on the moisture level in soil (USEPA, 2011).  Such flushing would presumably act to partially remove glufosinate-ammonium and MPP from soil/sediment, such that concentrations in paddy water during the permanent flood would be lessened.  Because the model runs done using PFAM do not account for this effect, modeled concentrations may be higher than concentrations in permanent flood waters of rice fields on which flushing has been conducted.

      In modeling it was assumed that paddy water is released seven to fifty-five days after glufosinate-ammonium application.  However, in practice, once a permanent flood is established, the flood may be maintained until 2 to 3 weeks before harvesting, allowing for more degradation of glufosinate-ammonium (though not for MPP, given its stability in the aerobic aquatic environment), and thus lower release concentrations.

      In the PFAM modeling, upper 90[th] percentile confidence limits on mean half-lives for degradation in water and unflooded soil were used for glufosinate-ammonium, in accordance with EPA guidance.  Use of these values may exaggerate the stability of glufosinate-ammonium in these compartments, thereby generating conservative EDWC estimates for glufosinate-ammonium.  However, to the extent that this is the case, they will also underestimate the rate of formation, and thus the EDWCs, of MPP.  To evaluate the impact that assumed half-lives have on PFAM-modeled concentrations, EFED also examined use of the lower 90[th] percentile confidence limits on mean half-lives for glufosinate-ammonium in water (15 days) and unflooded soil (11 days).  Resulting MPP concentrations were 2.5 to 4 times greater under these assumptions.

      Environmental fate data for MPP were estimated from registrant-submitted studies, primarily conducted using glufosinate-ammonium, and EPISuite.  For degradation in aerobic aquatic environments, MPP half-lives were estimated from a study submitted for glufosinate-ammonium (MRID 45204402/01) in two water-sediment systems, which indicated that MPP was persistent (half-life ranging from 441 to 2,054 days).  There is significant uncertainty about these half-lives, because the study was not conducted by applying MPP as starting material, and because the half-life developed for the sand system with 1 ppm applied glufosinate-ammonium was based on only four data points.  Additionally, as data on MPP were not available for hydrolysis, aqueous photolysis, and anaerobic aquatic metabolism, MPP was assumed to be stable via these routes of degradation.  Collectively, these assumptions generate little to no decrease from acute to chronic concentrations for MPP, and may overstate the compound's stability.

      Monitoring data from other pesticides were used to develop percent reduction values between peak and time-weighted average concentrations in order to estimate chronic EDWCs for glufosinate-ammonium and MPP.  These pesticides have varying physical and chemical properties, which result in levels of persistence in the water column and soil that are likely different than those for glufosinate-ammonium and MPP.  Additionally, the monitoring data were collected during the spring and summer months, and may not be representative of pesticides in final paddy release waters.  Thus there is the possibility that use of the 50% reduction factor could result in underestimation of chronic concentrations of glufosinate-ammonium and MPP.  Given that the percent reduction values developed for the three other pesticides are similar however, despite differences in their fate properties, any such underestimation of chronic EDWCs for glufosinate-ammonium and MPP may not be significant.

      The Liberty[(R)] 280 SL and Liberty[(R)] products are currently not registered in California and, therefore, are not used for weed control on rice in California.  As a result, the EDWCs developed for the California rice scenario, used as recommended EDWCs in this assessment, would only be applicable if Liberty[(R)] 280 SL and Liberty[(R)] were registered in the state in the future.

      The PFAM model has been adapted to include the index reservoir as a means for quantifying releases from rice fields into drinking water reservoirs, which are natural or artificial lakes used as raw water sources for community water systems.  Reservoirs are usually fed by multiple streams, whose flow is governed by local precipitation, runoff and baseflow.  In some areas of the country the use of reservoirs for drinking water supply is not common, and in such cases water supply intakes may be located in unimpounded, flowing sections of streams or rivers.

      PFAM runs using the index reservoir assumed a watershed area of 345,600 m[2], derived from a provisional PCA based on 8-digit hydrologic unit code (HUC-8) watersheds of 20%.  In smaller, more vulnerable watersheds, the fractional area composed of rice paddies could be higher than this, resulting in a larger treated area with less surrounding land to provide dilution water.  In such cases, the model may underestimate pesticide concentrations.
Discussion and Conclusions
      EFED evaluated acute EDWCs using a refined Tier I Rice Model and PFAM without-the-index-reservoir.  EFED estimated chronic concentrations using several methods, including: adjusting the acute concentration by allowing the glufosinate-ammonium and MPP to degrade via aerobic aquatic degradation; evaluating monitoring data for other pesticides used predominately for rice growing and adjusting PFAM EDWCs by an acute-to-chronic concentration correction factor; and, coupling PFAM outputs to the index reservoir.  Use of the aerobic aquatic degradation rates resulted in chronic EDWCs that were 76% and 3% lower than the acute EDWCs for glufosinate-ammonium and MPP, respectively.  Monitoring data for other pesticides used predominately for rice growing indicate that chronic EDWCs could be 50 to 90% lower than the acute EDWCs.  Use of PFAM with the index reservoir estimated acute and chronic concentrations in a receiving waterbody, indicating 73-85% and 4-47% reduction from peak to annual average concentrations for glufosinate-ammonium and MPP, respectively.  As the effluent concentrations derived using PFAM have been through internal and external review and evaluation, EFED recommends the use of the acute EDWCs derived from PFAM without-the-index-reservoir, and chronic EDWCs derived using aerobic aquatic degradation kinetics, as conservative estimates for glufosinate-ammonium and MPP in drinking water.

Table 17. EDWCs for glufosinate-ammonium use on rice
Use rate, Number of apps, retreatment interval, water holding period, application timing
                                  Acute EDWC
                                    (ug/L)
                        Annual Average EDWC[1] (ug/L)

                                     4"
                                     8"
                                     4"
                                     8"
                             Glufosinate-ammonium
1.46 lbs ai/acre, 1, NA, 7 days, dry
                                      173
                                      86
                                      42
                                      21
0.73 lbs ai/acre, 2, 10, 30, dry and flooded
                                      NA
                                      320
                                      NA
                                      78
0.73 lbs ai/acre, 2, 10, 55, dry and flooded
                                      390
                                      NA
                                      95
                                      NA
0.66 lbs ai/acre, 1, NA, 7 days, dry
                                      74
                                      38
                                      18
                                       9
0.89 lbs ai/acre, 1, NA, 7 days, dry
                                      106
                                      53
                                      26
                                      13
0.44 lbs ai/acre, 2, 10 days, 7 days, dry
                                      88
                                      45
                                      22
                                      11
0.44 lbs ai/acre, 2, 10 days,7 days, flooded
                                      NA
                                      375
                                      NA
                                      92
                                      MPP
1.46 lbs ai/acre, 1, NA, 7 days, dry
                                      5.7
                                      2.9
                                      5.5
                                      2.8
0.73 lbs ai/acre, 2, 10, 30, dry and flooded
                                      NA
                                      88
                                      NA
                                      85
0.73 lbs ai/acre, 2, 10, 55, dry and flooded
                                      183
                                      NA
                                      177
                                      NA
0.66 lbs ai/acre, 1, NA, 7 days, dry
                                      2.2
                                      1.1
                                      2.1
                                      1.1
0.89 lbs ai/acre, 1, NA, 7 days, dry
                                      3.5
                                      1.8
                                      3.4
                                      1.7
0.44 lbs ai/acre, 2, 10 days, 7 days, dry
                                      3.0
                                      1.5
                                      2.9
                                      1.5
0.44 lbs ai/acre, 2, 10 days,7 days, flooded
                                      NA
                                      45
                                      NA
                                      44
 1. Annual average EDWC calculated by taking acute EDWC and allowing it to degrade for 365 days, using the aerobic aquatic degradation half-life, and then taking the average value over the 365-day period.

References
FAO. 2000. Appendix 2.  Parameters of pesticides that influence processes in the soil. In FAO Information Division Editorial Group (Ed.), Pesticide Disposal Series 8.  Assessing Soil Contamination.  A Reference Manual. Rome: Food & Agriculture Organization of the United Nations (FAO). Available at http://www.fao.org/DOCREP/003/X2570E/X2570E06.htm

FIFRA SAP. 2004. Refined (Level II) Terrestrial and Aquatic Models for Probabilistic and Ecological Assessment of Pesticides. March 30-April 2, 2004. http://www.epa.gov/scipoly/sap/meetings/2004/033004_mtg.htm

Hill, J.E., Dickey, D. 1998. Crop Profile for Rice in California. http://www.ipmcenters.org/CropProfiles/docs/carice.pdf

Hill, J.E., Roberts, S.R., Brandon, D.M., Scardaci, S.C., Willimas, J.F., Mutters, R.G. 1997. Rice Production in California Revised 1997. http://www.plantsciences.ucdavis.edu/uccerice/PRODUCT/prod.htm

Hill, J. E., Williams, J. F., Mutters, R. G., & Greer, C. A. 2006. The California rice cropping system: agronomic and natural resource issues for long-term sustainability. Paddy Water Environ, 4, 13-19.

Lemaux, P. (date unknown). "LL601 Rice What Is It & What does It Mean?" Factsheet. http://ucbiotech.org/resources/factsheets/LibertyLink.pdf

Luo, Y. 2011. Report 263: Review and Evaluation of Pesticide Modeling Approaches in Rice Paddies. California Department of Pesticide Regulation, Environmental Monitoring Branch. June 29, 2011. http://www.cdpr.ca.gov/docs/emon/surfwtr/protocols/study263protocol.pdf

Shipp, M. 2002. Crop Profile for Rice in Louisiana. http://www.ipmcenters.org/CropProfiles/docs/LArice.pdf

Univeristy of Arkansas. 2006. Rice Production Handbook. University of Arkansas, Division of Agriculture Cooperative Extension Service. http://www.uaex.edu/Other_Areas/publications/HTML/MP-192.asp

USDA. 2010. Field Crops Usual Planting and Harevsting Dates. United States Department of Agriculture, National Agricultural Statistics Service. October 29, 2010. http://usda.mannlib.cornell.edu/usda/current/planting/planting-10-29-2010.pdf

USEPA. 2001. Total Maximum Daily Load (TMDL) For the Pesticide Fipronil
in the Mermentau Basin for the Following Subsegments: Bayou Plaquemine Brule (050201),
Mermentau River (050401), Bayou Queue de Tortue (050501), Bayou Chene (050603), Including the 303(d) Listed Subsegment Bayou Des Cannes (050101). USEPA Region 6. September 13, 2001

USEPA. 2002. Memorandum, Subject: PP#s - 0F06210 (transgenic rice), 0F06140 (transgenic cotton), and 2E06404 (blueberry) - Glufosinate Ammonium in/on Transgenic rice, Transgenic Cotton, and Blueberry.  Health Effects Division (HED) Metabolism Assessment Review Committee (MARC) Decision Document.  DP Barcode D282757.  Chemical 128850.  Case 292945.  Submission S596735. From: Tom Bloem, Chemist, Registration Action Branch 1 (RAB1)/HED (7509C) and PV Shah, Ph.D., Toxicologist, RAB1/HED (7509C). May 9, 2002

USEPA. 2004. Exposure Analysis Modeling System (EXAMS): User Manual and System Documentation. EPA/600/R-00/81-023. May 2004. Ecosystems Research Division.  United States Environmental Protection Agency. Available at http://www.epa.gov/ceampubl/swater/exams/exams29804/EXAMREVG.PDF (Accessed September 2, 2011).

 USEPA 2007.  Guidance for Tier I Estimation of Aqueous Pesticide Concentrations in Rice Paddies.  Memo from S. Bradbury to Environmental Fate and Effects Division; May 8, 2007.  U.S. Environmental Protection Agency, Office of Prevention, Pesticides and Toxic Substances, Office of Pesticide Programs, Environmental Fate and Effects Division, Washington, DC.  Available at http://www.epa.gov/oppefed1/models/water/index.htm#rice (accessed September 27, 2010).

USEPA. 2009a.  Potential Risks of Thiobencarb Use to Federally Threatened California Red-legged Frog (Rana aurora draytonii) and Delta Smelt (Hypomesus transpacificus).  October 19, 2009.  Pesticide Effects Determinations.  U.S. Environmental Protection Agency, Office of Prevention, Pesticides, and Toxic Substances. Environmental Fate and Effects Division.  Online at:  http://www.epa.gov/espp/litstatus/effects/redleg-frog/thiobencarb/analysis.pdf

USEPA.  2009b.  Guidance for Selecting Input Parameters in Modeling the Environmental Fate and Transport of Pesticides, Version 2.1.  U.S. Environmental Protection Agency, Office of Prevention, Pesticides and Toxic Substances, Office of Pesticide Programs, Environmental Fate and Effects Division, October 22, 2009. Online at: http://www.epa.gov/oppefed1/models/water/input_parameter_guidance.htm

USEPA, 2009c. Guidance on the Development, Evaluation, and Application of Environmental Models. EPA/100/K-09/003 March 2009. US Environmental Protection Agency, Washington, DC.

USEPA. 2011. Internal Memorandum from Biological and Economic Analysis Division (BEAD) to EFED Regarding Liberty Link Rice Production. August 22, 2011.

USEPA. 2012. Development and Use of Percent Cropped Area and Percent Turf Area Adjustment Factors in Drinking Water Exposure Assessments: 2012 Update. U.S. Environmental Protection Agency, Office of Prevention, Pesticides and Toxic Substances, Office of Pesticide Programs, Environmental Fate and Effects Division, September 9, 2010. Online at: http://www.epa.gov/oppefed1/models/water/pca_adjustment_dwa.html

      MRIDS

MRID:  40345656
Goerlitz, G.; Kloeckner, C.; Eyrich, U. (1986) Abiotic Hydrolysis as a Function of pH and Amendment and Separation of Potential Hydrolysis Products of HOE 039866 from the Active Ingredient by HPLC: Project Nos. (B)277/85 and (B)110/86.  Unpublished study prepared by Hoechst AG.  48 p.

MRID:  40345659
Gildemeister, H.; Jordan, H.; Stumpf, K.; et al. (1987) Aerobic Soil Metabolism Studies with HOE 039866-[carbon 14] and Amend- ment and Degradation in Soil Study with HOE 061517-[carbon 14]: Project Nos. CB066/85, CB060/86 and CB065/86.  Unpublished study prepared by Hoechst AG.  152 p.

MRID:  40345660
Gildemeister, H.; Jordan, H.; Schink, C. (1987) HOE 039866-[carbon 14]: Aerobic Aquatic Metabolism Study: Project No. CB064/86. Unpublished study prepared by Hoechst AG.  56 p.

MRID:  40345662
Goerlitz, G. (1985) Adsorption/Desorption in the System--Soil/Water for HOE 039866 and HOE 061517: Project Nos. CP055/85 and CP062/ 85.  Unpublished study prepared by Hoechst AG.  81 p.

MRID:  41323115
Stumpf, K. (1989) HOE 039866-Carbon 14: Photodegradation in Water at pH 5, 7, and 9: Lab Project Number: A40989: CB/89/88. Unpublished study prepared by Hoechst AG.  73 p.

MRID:  41323118
Stumpf, K. (1989) HOE 061517-Carbon 14, Metabolite of HOE 039866: Degradation in Aerobic Conditions at Application Rates of 0.5 and 1.0 mg/kg: Lab Project Number: CB007/88: A41198.  Unpublished study prepared by Hoechst AG.  59 p.

MRID:  44032901
Miklautz, H. (1995) The Vapor Pressure of Glufosinate-Ammonium (Hoe 039866) at 25 (degrees) C: Lab Project Number: 0910: A55227: APC 126/95.  Unpublished study prepared by Schering AG, Institute of Physical Chemistry.  16 p.

MRID:  45204401
Stumpf, K. (1994) Aerobic Aquatic Metabolism of (carbon-14)-Labelled Glufosinate-ammonium in Two Water Sediment Systems at Different Application Rates: 1st Amendment to Report CB90/109: Lab Project Number: CB90/109: CB90/109.A01: A53137. Unpublished study prepared by Hoechst Schering AgrEvo GmbH.  60 p.

MRID:  45204402
Stumpf, K. (1994) Aerobic Aquatic Metabolism of (carbon-14)-Labelled Glufosinate-ammonium in Two Water Sediment Systems at Different Application Rates: Lab Project Number: CB90/109: A53136.  Unpublished study prepared by Hoechst Schering AgrEvo GmbH.  75 p.

MRID:  45204403
Singer, S. (2000) Aquatic Field Dissipation of Glufosinate-Ammonium Following Application of Liberty at Highest Recommended Label Rates for Rice in Louisiana and California-USA, 1997: Lab Project Number: BK-97R-09: B002515: BK97R009.  Unpublished study prepared by Aventis CropScience. 11 p.

MRID:  46258601
Citation:  Stupp, H. (2003) Degradation and Metabolism of Glufosinate Ammonium in Soil Under Anaerobic Conditions.  Project Number: M1261285/5, MEF/367/03, C038925.  Unpublished study prepared by Bayer Ag, Institute of Product Info.  62 p.
Appendix A. SDWIS Results

Counties that grow rice were identified using the USDA National Agricultural Statistics Service Quick Stats Data (http://quickstats.nass.usda.gov/results/6432EC45-FA6F-3DE6-A48F-98F1917AAEA8).  The Safe Drinking Water Information System (SDWIS) maintained by the EPA (http://www.epa.gov/enviro/facts/sdwis/search.html) was then used to find all drinking water intakes in those counties.  Finally, the drinking water intakes were filtered to identify the drinking water sources that use surface water as a source of drinking water.  These results are summarized in Table A2.  The exact sources of drinking water in Butte County California and in Randolph County Arkansas were determined using the SDWIS system and finding information on the drinking water sources on the internet.  These results are shown in Table A1.

Table A1.  Sources of Drinking Water for the Drinking Water Systems Reported to Have a Surface Water Source in Butte County, CA and Randolph County, AR.
                                 Water source
                               Water System Name
                            Source of water source
                               Butte County, CA
                         West branch of feather river
                        CAL-WATER SERVICE CO.-OROVILLE
http://calwater.com/your_district/index.php?district=oro&Zip=&Submit=Click+to+show+your+district
                                 Lake Oroville
                     DEL ORO WATER CO.-LIME SADDLE MARINA
         http://docs.cpuc.ca.gov/published/Final_resolution/98533.htm
                              Stirling City Creek
                       DEL ORO WATER CO.-STIRLING BLUFFS
http://drinc.ca.gov:8080/DWW/JSP/WaterSystemDetail.jsp?tinwsys_is_number=107&tinwsys_st_code=CA&wsnumber=CA0410018
                               Magalia Reservoir
                         PARADISE IRRIGATION DISTRICT
http://drinc.ca.gov:8080/DWW/JSP/WaterSystemDetail.jsp?tinwsys_is_number=99&tinwsys_st_code=CA&wsnumber=CA0410007
                                 Bangor Ditch
                                  SFWP-BANGOR
http://drinc.ca.gov:8080/DWW/JSP/WaterSystemDetail.jsp?tinwsys_is_number=103&tinwsys_st_code=CA&wsnumber=CA0410012
                          Feather River/ Slate Creek
                               SFWP-MINERS RANCH
       http://www.southfeather.com/Board/2007/112707_MRTP_Expansion.pdf
                               Concow Reservoir
                     THERMALITO WATER & SEWER DISTRICT
http://www.buttecounty.net/~/media/County%20Files/AdminOffice/Public%20Internet/Grand%20Jury%20Documents/GrandJury_0809/Grand%20Jury%20Report%20FY%2008-09%20-%20Sec%2014.ashx
                              Randolph County, AR
                         Black River in Pocahontas, AR
                             POCAHONTAS WATERWORKS
http://www.healthy.arkansas.gov/programsServices/environmentalHealth/Engineering/Documents/Reports/FormsAndMaterials/DraftArkansasSourceWaterAssessmentPlan.pdf

Table A2.  Sources of Drinking Water with a Surface Water Source in United States Counties that Grow Rice.
                               Water System Name
                               County(s) Served
                               Population Served
                           Primary Water Source Type
                                 System Status
                                Water System ID
CAL-WATER SERVICE CO.-OROVILLE
BUTTE
                                                                           9427
                                 Surface water
Active
                                   CA0410005
DEL ORO WATER CO.-LIME SADDLE MARINA
BUTTE
                                                                            128
                                 Surface water
Active
                                   CA0405001
DEL ORO WATER CO.-STIRLING BLUFFS
BUTTE
                                                                            313
                                 Surface water
Active
                                   CA0410018
PARADISE IRRIGATION DISTRICT
BUTTE
                                                                          26299
                                 Surface water
Active
                                   CA0410007
SFWP-BANGOR
BUTTE
                                                                             63
                                 Surface water
Active
                                   CA0410012
SFWP-MINERS RANCH
BUTTE
                                                                          22348
                                 Surface water
Active
                                   CA0410006
THERMALITO WATER & SEWER DISTRICT
BUTTE
                                                                           9513
                                 Surface water
Active
                                   CA0410008
LASSEN VNP - HEADQUARTERS
TEHAMA
                                                                             54
                                 Surface water
Active
                                   CA5210503
MINERAL COUNTY WATER DISTRICT
TEHAMA
                                                                            109
                                 Surface water
Active
                                   CA5200503
PASKENTA COMM. SERVICES DIST.
TEHAMA
                                                                            120
                                 Surface water
Active
                                   CA5200534
SALT CREEK CONSERVATION CAMP
TEHAMA
                                                                            120
                                 Surface water
Active
                                   CA5210801
LASSEN VNP - BUTTE LAKE
TEHAMA
                                                                            240
                                 Surface water
Active
                                   CA5210500
LASSEN VNP - LOST CREEK
TEHAMA
                                                                            340
                                 Surface water
Active
                                   CA5210504
LASSEN VNP - MANZANITA LAKE
TEHAMA
                                                                            600
                                 Surface water
Active
                                   CA5210505
LASSEN VNP - SOUTHWEST/CHALET
TEHAMA
                                                                            145
                                 Surface water
Active
                                   CA5210501
LASSEN VNP - SUMMIT LAKE
TEHAMA
                                                                            250
                                 Surface water
Active
                                   CA5210506
ELK CREEK COMMUNITY S.D.
GLENN
                                                                            300
                                 Surface water
Active
                                   CA1100616
COLUSA CO. SERVICE AREA #1-CENTURY RANCH
COLUSA
                                                                            120
                                 Surface water
Active
                                   CA0600012
FOUTS SPRINGS YOUTH FACILITY
COLUSA
                                                                            120
                                 Surface water
Active
                                   CA0600041
BULLARD S BAR REC FAC WTR SYS
YUBA
                                                                           2200
                                 Surface water
Active
                                   CA5800814
CYO CAMP PENDOLA
YUBA
                                                                            130
                                 Surface water
Active
                                   CA5800838
CAMP FAR WEST RESORT
YUBA
                                                                           4000
                                 Surface water
Active
                                   CA5800801
CAMPTONVILLE COMM. SERV. DIST
YUBA
                                                                            300
                                 Surface water
Active
                                   CA5800924
CATHEDRAL OAKS
YUBA
                                                                            140
                                 Surface water
Active
                                   CA5800803
NEVADA ID - SMARTVILLE
YUBA
                                                                            109
                                 Surface water
Active
                                   CA5810005
NORTH YUBA WATER DISTRICT
YUBA
                                                                           3500
                                 Surface water
Active
                                   CA5810006
CANYON CREEK RESORT
YOLO
                                                                            200
                                 Surface water
Active
                                   CA5700608
MURPHY S SALOON
SACRAMENTO
                                                                            320

Active
                                   CA3400431
CARMICHAEL WATER DISTRICT
SACRAMENTO
                                                                          40000
                                 Surface water
Active
                                   CA3410004
FOLSOM STATE PRISON
SACRAMENTO
                                                                           9500
                                 Surface water
Active
                                   CA3410032
GOLDEN STATE WATER CO. - CORDOVA
SACRAMENTO
                                                                          48909
                                 Surface water
Active
                                   CA3410015
RANCHO MURIETA COMMUNITY SERVI
SACRAMENTO
                                                                           6060
                                 Surface water
Active
                                   CA3410005
SAN JUAN WATER DISTRICT
SACRAMENTO
                                                                          33792
                                 Surface water
Active
                                   CA3410021
SCWA - LAGUNA/VINEYARD
SACRAMENTO
                                                                         153701
                                 Surface water
Active
                                   CA3410029
H & H MARINA WS
SAN JOAQUIN
                                                                             30
                                 Surface water
Active
                                   CA3900769
JIMMYS MARKET WATER SYSTEM
SAN JOAQUIN
                                                                             25

Active
                                   CA3902179
MOOSE OUTDOOR SPORTSMAN CLUB
SAN JOAQUIN
                                                                             25

Active
                                   CA3901478
ST FRANCIS YACHT CLUB
SAN JOAQUIN
                                                                            100
                                 Surface water
Active
                                   CA3901010
LITTLE POTATO SLOUGH MUTUAL
SAN JOAQUIN
                                                                            350
                                 Surface water
Active
                                   CA3910022
MOUNTAIN HOUSE COMMUNITY SERVICES DIST.
SAN JOAQUIN
                                                                           7250
                                 Surface water
Active
                                   CA3910027
NORTHERN CALIF YOUTH CORR. CENTER
SAN JOAQUIN
                                                                           2488
                                 Surface water
Active
                                   CA3910802
STOCKTON EAST WATER DISTRICT
SAN JOAQUIN
                                                                             50
                                 Surface water
Active
                                   CA3910006
BEAR VALLEY YMCA CAMP
PLACER
                                                                             80

Active
                                   CA3107332
CAMP WINTHERS
PLACER
                                                                            100
                                 Surface water
Active
                                   CA3104449
FIR CRAGS SUMMER HOME TRACT
PLACER
                                                                             50
                                 Surface water
Active
                                   CA3107317
FRENCH MEADOWS NORTH SHORE
PLACER
                                                                           1000
                                 Surface water
Active
                                   CA3100085
FRENCH MEADOWS SOUTH SHORE
PLACER
                                                                           1000
                                 Surface water
Active
                                   CA3100084
FULDA FLAT CAMP
PLACER
                                                                            125
                                 Surface water
Active
                                   CA3107316
SKY MOUNTAIN CHRISTIAN CAMP
PLACER
                                                                             25
                                 Surface water
Active
                                   CA3104457
SNOWFLOWER
PLACER
                                                                           1000
                                 Surface water
Active
                                   CA3103288
SUGAR PINE RESERVIOR
PLACER
                                                                             25
                                 Surface water
Active
                                   CA3103261
AGATE BAY WATER COMPANY
PLACER
                                                                           2500
                                 Surface water
Active
                                   CA3110012
ALPINE MEADOWS PROPERTY OWNERS ASSO
PLACER
                                                                            250
                                 Surface water
Active
                                   CA3100041
CALAM - WEST PLACER
PLACER
                                                                           3148
                                 Surface water
Active
                                   CA3110150
CHRISTIAN VALLEY PARK CSD
PLACER
                                                                           2000
                                 Surface water
Active
                                   CA3110034
DUTCH FLAT MUTUAL
PLACER
                                                                            250
                                 Surface water
Active
                                   CA3100058
FORESTHILL PUBLIC UTILITY DIST
PLACER
                                                                           5500
                                 Surface water
Active
                                   CA3110003
FULTON WATER COMPANY
PLACER
                                                                            500
                                 Surface water
Active
                                   CA3110015
HEATHER GLEN COMMUNITY SERVICE DIST
PLACER
                                                                            250
                                 Surface water
Active
                                   CA3100038
LAKE FOREST UTILITY COMPANY
PLACER
                                                                             50
                                 Surface water
Active
                                   CA3110032
MEADOW VISTA CWD
PLACER
                                                                           3640
                                 Surface water
Active
                                   CA3110009
NEVADA ID - NORTH AUBURN
PLACER
                                                                           6320
                                 Surface water
Active
                                   CA3110026
NORTH EDEN VALLEY
PLACER
                                                                             45
                                 Surface water
Active
                                   CA3100019
NORTH TAHOE PUD - DOLLAR COVE
PLACER
                                                                            800
                                 Surface water
Active
                                   CA3110036
NORTH TAHOE PUD - MAIN
PLACER
                                                                           5000
                                 Surface water
Active
                                   CA3110001
NORTHSTAR C.S.D.
PLACER
                                                                            300
                                 Surface water
Active
                                   CA3110028
PLACER CWA - ALTA
PLACER
                                                                            875
                                 Surface water
Active
                                   CA3110024
PLACER CWA - APPLEGATE
PLACER
                                                                            215
                                 Surface water
Active
                                   CA3110050
PLACER CWA - AUBURN/BOWMAN
PLACER
                                                                          27199
                                 Surface water
Active
                                   CA3110005
PLACER CWA - COLFAX
PLACER
                                                                           2987
                                 Surface water
Active
                                   CA3110006
PLACER CWA - FOOTHILL
PLACER
                                                                          72584
                                 Surface water
Active
                                   CA3110025
PLACER CWA - MONTE VISTA
PLACER
                                                                             59
                                 Surface water
Active
                                   CA3110124
SHADY GLEN COMM WATER SYSTEM
PLACER
                                                                            336
                                 Surface water
Active
                                   CA3100040
SIERRA LAKES COUNTY WATER DIST
PLACER
                                                                            185
                                 Surface water
Active
                                   CA3110017
TAHOE CEDARS WATER COMPANY
PLACER
                                                                           2775
                                 Surface water
Active
                                   CA3110013
TAHOE PARK WATER CO - SKYLAND/NIELSEN
PLACER
                                                                             50
                                 Surface water
Active
                                   CA3110049
TAHOE PARK WATER COMPANY
PLACER
                                                                            750
                                 Surface water
Active
                                   CA3110018
TAHOE SWISS VILLAGE UTILITY
PLACER
                                                                            300
                                 Surface water
Active
                                   CA3110042
WEIMAR WATER COMPANY
PLACER
                                                                            900
                                 Surface water
Active
                                   CA3110035
FRANK RAINES PARK OHV
STANISLAUS
                                                                             26
                                 Surface water
Active
                                   CA5000243
KNIGHTS FERRY COMM. SVC. DIST.
STANISLAUS
                                                                             85
                                 Surface water
Active
                                   CA5000008
SOUTH SAN JOAQUIN IRRIGATION DISTRICT
STANISLAUS
                                                                             50
                                 Surface water
Active
                                   CA5010040
TURLOCK IRRIGATION DISTRICT
STANISLAUS
                                                                             50
                                 Surface water
Active
                                   CA5010043
WESTERN HILLS WATER DISTRICT/DIABLO GRAN
STANISLAUS
                                                                           3000
                                 Surface water
Active
                                   CA5010039
9-IRON WATER SYSTEM
MERCED
                                                                             90

Active
                                   CA2400222
CAL TRANS ERRECA REST AREA
MERCED
                                                                           6150
                                 Surface water
Active
                                   CA2400057
CDPR FOUR RIVERS DISTRICT-BASALT
MERCED
                                                                            470
                                 Surface water
Active
                                   CA2410303
CDPR FOUR RIVERS DISTRICT-SAN LUIS CREEK
MERCED
                                                                            458
                                 Surface water
Active
                                   CA2410304
DRISCOLL STRAWBERRY
MERCED
                                                                            275

Active
                                   CA2400225
GONZALES FOOD FACILITY
MERCED
                                                                             60

Active
                                   CA2400233
DWR - SAN LUIS DIVISION O&M
MERCED
                                                                            650
                                 Surface water
Active
                                   CA2410950
LOS BANOS FOODS, INC.
MERCED
                                                                             69
                                 Surface water
Active
                                   CA2400107
SAN JOAQ.VALLEY NAT.CEMETERY
MERCED
                                                                             25
                                 Surface water
Active
                                   CA2400200
SAN LUIS HILLS
MERCED
                                                                            300
                                 Surface water
Active
                                   CA2400209
SANTA NELLA COUNTY WATER DISTRICT
MERCED
                                                                           1500
                                 Surface water
Active
                                   CA2410018
ANDERSON CLAYTON-SILVER CREEK GINS
FRESNO
                                                                             29
                                 Surface water
Active
                                   CA1000510
BEAR CREEK WATER IMPROVEMENT
FRESNO
                                                                            100
                                 Surface water
Active
                                   CA1000003
BSA/CAMP OLJATO
FRESNO
                                                                            250
                                 Surface water
Active
                                   CA1000156
CAMP FRESNO WATER SYSTEM
FRESNO
                                                                            250
                                 Surface water
Active
                                   CA1000170
CAMP SIERRA
FRESNO
                                                                            180
                                 Surface water
Active
                                   CA1000010
CEDAR CREST RESORT
FRESNO
                                                                            100
                                 Surface water
Active
                                   CA1000164
COKE HALLOWELL CENTER
FRESNO
                                                                             25
                                 Surface water
Active
                                   CA1000586
HUCKLEBERRY WATER DEVELOPMENT
FRESNO
                                                                            200
                                 Surface water
Active
                                   CA1000050
MONO HOT SPRINGS RESORT
FRESNO
                                                                             85
                                 Surface water
Active
                                   CA1000308
NPS-CEDAR GRV/SHEEP CR
FRESNO
                                                                           2900
                                 Surface water
Active
                                   CA1010500
PANOCHE RANCH - FRANK LOGOLUSO FARMS
FRESNO
                                                                            300
                                 Surface water
Active
                                   CA1000588
PG&E BALCH CAMP
FRESNO
                                                                             17
                                 Surface water
Active
                                   CA1009129
PG&E MARMOT ROCK CAMPGROUND
FRESNO
                                                                             40
                                 Surface water
Active
                                   CA1000392
RANCHERIA WATER & IMPRMNT ASSN
FRESNO
                                                                             75
                                 Surface water
Active
                                   CA1000067
CON AGRA FOODS, CULINARY BUSINESS F
FRESNO
                                                                             25
                                 Surface water
Active
                                   CA1000536
COTTON WEST AG MANAGEMENT
FRESNO
                                                                             50
                                 Surface water
Active
                                   CA1000360
HARRIS RANCH
FRESNO
                                                                            275
                                 Surface water
Active
                                   CA1000214
I-5 AND HWY 198 REST AREA
FRESNO
                                                                            225
                                 Surface water
Active
                                   CA1000178
I-5 AND PANOCHE DEVELOPMENT
FRESNO
                                                                             85
                                 Surface water
Active
                                   CA1000177
LOS GATOS TOMATO PRODUCTS
FRESNO
                                                                            100
                                 Surface water
Active
                                   CA1000490
OLAM SPICES AND VEGETABLES INC.
FRESNO
                                                                            125
                                 Surface water
Active
                                   CA1009091
VIE-DEL COMPANY
FRESNO
                                                                             60

Active
                                   CA1000593
WESTLANDS WATER DISTRICT
FRESNO
                                                                             48
                                 Surface water
Active
                                   CA1000361
BIG CREEK COMMUNITY SERV DIST
FRESNO
                                                                            150
                                 Surface water
Active
                                   CA1000005
BRITZ/COLUSA
FRESNO
                                                                            106
                                 Surface water
Active
                                   CA1009023
BRITZ/FIVE POINT SYSTEM
FRESNO
                                                                            150
                                 Surface water
Active
                                   CA1009179
CASACA VINEYARDS
FRESNO
                                                                             25
                                 Surface water
Active
                                   CA1000175
COIT RANCH CORPORATION
FRESNO
                                                                             90
                                 Surface water
Active
                                   CA1009131
FARMING D
FRESNO
                                                                            100
                                 Surface water
Active
                                   CA1009147
FCSA #30/EL PORVENIR
FRESNO
                                                                            130
                                 Surface water
Active
                                   CA1000019
FCSA #32/CANTUA CREEK
FRESNO
                                                                            230
                                 Surface water
Active
                                   CA1000359
FCSA #34/BRIGHTON CREST
FRESNO
                                                                            212
                                 Surface water
Active
                                   CA1000484
FCSA #49/ FIVE POINTS
FRESNO
                                                                            450
                                 Surface water
Active
                                   CA1000546
FCWWD #38/SKY HARBOUR
FRESNO
                                                                            150
                                 Surface water
Active
                                   CA1000041
FRESNO CO WATER WORKS DIST 18
FRESNO
                                                                            860
                                 Surface water
Active
                                   CA1010051
HAMMONDS RANCH
FRESNO
                                                                             50
                                 Surface water
Active
                                   CA1009281
HARRIS FARMS CAMP C #501-523
FRESNO
                                                                            300
                                 Surface water
Active
                                   CA1009027
HARRIS FARMS SOUTH #101-144
FRESNO
                                                                            160
                                 Surface water
Active
                                   CA1009028
HARRIS FARMS/HORSE BARN
FRESNO
                                                                            100
                                 Surface water
Active
                                   CA1000213
HARRIS FEEDING COMPANY
FRESNO
                                                                            225
                                 Surface water
Active
                                   CA1009078
HOULDING FARMS
FRESNO
                                                                             50
                                 Surface water
Active
                                   CA1009051
HUME LAKE CHRISTIAN CAMPS, INC
FRESNO
                                                                            341
                                 Surface water
Active
                                   CA1010013
PANOCHE WATER DISTRICT
FRESNO
                                                                             27
                                 Surface water
Active
                                   CA1000345
PAPPAS & CO (COALINGA)
FRESNO
                                                                             50
                                 Surface water
Active
                                   CA1009006
PAPPAS & COMPANY (MENDOTA)
FRESNO
                                                                             25
                                 Surface water
Active
                                   CA1009039
PECK RANCH
FRESNO
                                                                             42
                                 Surface water
Active
                                   CA1009232
PILIBOS BROTHERS RANCH (SIMONIAN FARMS)
FRESNO
                                                                             25
                                 Surface water
Active
                                   CA1009035
SAN ANDREAS FARMS
FRESNO
                                                                             40
                                 Surface water
Active
                                   CA1009258
SCE/BIG CREEK POWERHOUSE #1
FRESNO
                                                                            200
                                 Surface water
Active
                                   CA1009111
TERRA LINDA FARMS
FRESNO
                                                                             40
                                 Surface water
Active
                                   CA1009222
VAQUERO FARMS
FRESNO
                                                                             70
                                 Surface water
Active
                                   CA1009172
WESTSIDE HARVESTING
FRESNO
                                                                             25
                                 Surface water
Active
                                   CA1009214
VEOLIA PORT ARTHUR FACILITY
JEFFERSON
                                                                            250
                                 Surface water
Active
                                   TX1230082
CITY OF BEAUMONT WATER UTILITY DEPT
JEFFERSON
                                                                         125000
                                 Surface water
Active
                                   TX1230001
CITY OF GROVES
JEFFERSON
                                                                          15733
                                 Surface water
Active
                                   TX1230012
CITY OF NEDERLAND
JEFFERSON
                                                                          20935
                                 Surface water
Active
                                   TX1230006
CITY OF NOME
JEFFERSON
                                                                            870
                                 Surface water
Active
                                   TX1230039
CITY OF PORT ARTHUR
JEFFERSON
                                                                          57755
                                 Surface water
Active
                                   TX1230009
CITY OF PORT NECHES
JEFFERSON
                                                                          15222
                                 Surface water
Active
                                   TX1230010
JEFFERSON COUNTY WCID 10
JEFFERSON
                                                                           5602
                                 Surface water
Active
                                   TX1230003
WEST JEFFERSON COUNTY MWD
JEFFERSON
                                                                           8007
                                 Surface water
Active
                                   TX1230021
NATCHITOCHES WATER SYSTEM
NATCHITOCHES
                                                                          30000
                                 Surface water
Active
                                   LA1069007
SANDY POINT 480 WATER SYSTEM
NATCHITOCHES
                                                                            458
                                 Surface water
Active
                                   LA1069013
LAKE BRUIN WATER SYSTEM
TENSAS
                                                                            912
                                 Surface water
Active
                                   LA1107002
NEWELLTON WATER SYSTEM
TENSAS
                                                                           1596
                                 Surface water
Active
                                   LA1107003
TENSAS WATER DISTRICT ASSOCIATION
TENSAS
                                                                           2910
                                 Surface water
Active
                                   LA1107009
MOUNTAIN PURE LLC
PULASKI
                                                                             30
                                 Surface water
Active
                                   ARN000094
CENTRAL ARKANSAS WATER
PULASKI
                                                                         313588
                                 Surface water
Active
                                   AR0000465
POCAHONTAS WATERWORKS
RANDOLPH
                                                                           6798
                                 Surface water
Active
                                   AR0000474
CITY OF ANAHUAC
CHAMBERS
                                                                           2880
                                 Surface water
Active
                                   TX0360001
LOWER NECHES VALLEY AUTHORITY
CHAMBERS
                                                                             10
                                 Surface water
Active
                                   TX0360112
TBCD WEST TREATMENT PLANT
CHAMBERS
                                                                           5481
                                 Surface water
Active
                                   TX0360030
TBCD WINNIE STOWELL
CHAMBERS
                                                                           6270
                                 Surface water
Active
                                   TX0360002

Appendix B. Estimation of Heat of Henry Using EPISuite

The Heat of Henry or enthalpy of salvation is the enthalpy of phase change from aqueous solution to air solution (Joules/mole).  This enthalpy can be approximated from the enthalpy of vaporization (Schwarzenbach et al., 2005), estimates of which can be obtained from EPISuite among other sources.

To estimate the enthalpy of vaporization using EPISuite software, open the software, then select the HENRYWIN subprogram on the left of the EPI Suite screen.  On the top menu of the HENRYWIN window item, select the ShowOptions, then select Show Temperature Variation with Results.  Enter the chemical name of interest and then push the Calculate button.  EPI Suite will give the temperature variation results in the form of an equation:  HLC (atm-m3/mole) = exp(A-(B/T)) {T in K}.  The enthalpy of vaporization is B (in Kelvin).  The enthalpy of solvation (e.g., heat of Henry in Joules/mol) is calculated by multiplying the gas constant (8.314 J/mol-K) by the enthalpy of vaporization for the compound (K).

For glufosinate and MPP, the heat of Henry (49,884 J/mol) was calculated by multiplying the gas constant (8.314 J/mol-K) by the compounds' enthalpy of vaporization (6,000 K) estimated by HenryWin (v3.20).

The printouts from HenryWin for glufosinate and MPP are presented below, with the temperature variation results highlighted in red

       Bond Est :  5.26E-016 atm-m3/mole  (5.33E-011 Pa-m3/mole)
       Group Est:  Incomplete

SMILES : O=P(C)(O)CCC(N)C(=O)O
CHEM   : Glufosinate
MOL FOR: C5 H12 N1 O4 P1
MOL WT : 181.13
--------------------------- HENRYWIN v3.20 Results --------------------------

Henry LC Temperature Variation:
  Slope Source:  Aliphatic acid slope analogy
     HLC (atm-m3/mole) = exp(-15.0579 - (6000/T)) {T in deg K}
  Temp (C)   atm-m3/mole   unitless      Pa-m3/mole
  --------   -----------   --------      ----------
      0       8.34E-017     3.72E-015    8.45E-012
      5       1.24E-016     5.42E-015    1.25E-011
     10       1.81E-016     7.8E-015     1.84E-011
     15       2.62E-016     1.11E-014    2.65E-011
     20       3.73E-016     1.55E-014    3.78E-011
     25       5.26E-016     2.15E-014    5.33E-011
     30       7.33E-016     2.95E-014    7.43E-011
     35       1.01E-015     4E-014       1.02E-010
     40       1.38E-015     5.37E-014    1.4E-010
     45       1.86E-015     7.14E-014    1.89E-010
     50       2.49E-015     9.41E-014    2.53E-010

----------+---------------------------------------------+---------+----------
   CLASS  |     BOND CONTRIBUTION DESCRIPTION           | COMMENT |  VALUE
----------+---------------------------------------------+---------+----------
 HYDROGEN |   8  Hydrogen to Carbon (aliphatic) Bonds   |         | -0.9574
 HYDROGEN |   2  Hydrogen to Oxygen Bonds               |         |  6.4635
 HYDROGEN |   2  Hydrogen to Nitrogen Bonds             |         |  2.5670
 FRAGMENT |   2  C-C                                    |         |  0.2326
 FRAGMENT |   1  C-CO                                   |         |  1.7057
 FRAGMENT |   1  C-N                                    |         |  1.3010
 FRAGMENT |   1  CO-O                                   |         |  0.0714
 FRAGMENT |   2  C-P                                    |         |  1.5571
 FRAGMENT |   1  O-P                                    |         |  0.3930
 FRAGMENT |   1  O=P                                    |         |  1.6334
 FACTOR   |   1  -C(=O)-C-N   group                     |         | -1.3000
----------+---------------------------------------------+---------+----------
 RESULT   |    BOND ESTIMATION METHOD for LWAPC VALUE   |  TOTAL  | 13.667
----------+---------------------------------------------+---------+----------
HENRYs LAW CONSTANT at 25 deg C = 5.26E-016 atm-m3/mole
                                = 2.15E-014 unitless
                                = 5.33E-011 Pa-m3/mole

--------+-----------------------------------------------+------------+--------
        |        GROUP CONTRIBUTION DESCRIPTION         |   COMMENT  |  VALUE
--------+-----------------------------------------------+------------+--------
        |           1  CH2 (C)(C)                       |            | -0.15
        |           1  CO (C)(O)                        |            |  4.09
        |           1  O-H (CO)                         |            |  1.45
        |           1  NH2 (C)                          |            |  4.15
        |              MISSING Value for:  P (C)(O)(C)(=O)
        |              MISSING Value for:  CH3 (P)
        |              MISSING Value for:  O-H (P)
        |              MISSING Value for:  CH2 (C)(P)
        |              MISSING Value for:  CH (C)(CO)(N)
--------+-----------------------------------------------+------------+--------
 RESULT |  GROUP ESTIMATION METHOD for LOG GAMMA VALUE  | INCOMPLETE |  9.54
--------+-----------------------------------------------+------------+--------

------------------------------------------------------------------------------

Heat of Henry, Glufosinate-ammonium = 8.314 x 6000 = 49,884 J/mol

SMILES : O=P(C)(O)CCC(=O)O
CHEM   : MPP
MOL FOR: C4 H9 O4 P1
MOL WT : 152.09
--------------------------- HENRYWIN v3.20 Results --------------------------

Henry LC Temperature Variation:
  Slope Source:  Aliphatic acid slope analogy
     HLC (atm-m3/mole) = exp(-9.1525 - (6000/T)) {T in deg K}
  Temp (C)   atm-m3/mole   unitless      Pa-m3/mole
  --------   -----------   --------      ----------
      0       3.06E-014     1.37E-012    3.1E-009
      5       4.54E-014     1.99E-012    4.6E-009
     10       6.65E-014     2.86E-012    6.74E-009
     15       9.6E-014      4.06E-012    9.73E-009
     20       1.37E-013     5.69E-012    1.39E-008
     25       1.93E-013     7.89E-012    1.96E-008
     30       2.69E-013     1.08E-011    2.73E-008
     35       3.71E-013     1.47E-011    3.76E-008
     40       5.06E-013     1.97E-011    5.13E-008
     45       6.84E-013     2.62E-011    6.93E-008
     50       9.16E-013     3.45E-011    9.28E-008

----------+---------------------------------------------+---------+----------
   CLASS  |     BOND CONTRIBUTION DESCRIPTION           | COMMENT |  VALUE
----------+---------------------------------------------+---------+----------
 HYDROGEN |   7  Hydrogen to Carbon (aliphatic) Bonds   |         | -0.8377
 HYDROGEN |   2  Hydrogen to Oxygen Bonds               |         |  6.4635
 FRAGMENT |   1  C-C                                    |         |  0.1163
 FRAGMENT |   1  C-CO                                   |         |  1.7057
 FRAGMENT |   1  CO-O                                   |         |  0.0714
 FRAGMENT |   2  C-P                                    |         |  1.5571
 FRAGMENT |   1  O-P                                    |         |  0.3930
 FRAGMENT |   1  O=P                                    |         |  1.6334
----------+---------------------------------------------+---------+----------
 RESULT   |    BOND ESTIMATION METHOD for LWAPC VALUE   |  TOTAL  | 11.103
----------+---------------------------------------------+---------+----------
HENRYs LAW CONSTANT at 25 deg C = 1.93E-013 atm-m3/mole
                                = 7.89E-012 unitless
                                = 1.96E-008 Pa-m3/mole

--------+-----------------------------------------------+------------+--------
        |        GROUP CONTRIBUTION DESCRIPTION         |   COMMENT  |  VALUE
--------+-----------------------------------------------+------------+--------
        |           1  CH2 (C)(CO)                      |            | -0.15
        |           1  CO (C)(O)                        |            |  4.09
        |           1  O-H (CO)                         |            |  1.45
        |              MISSING Value for:  P (C)(O)(C)(=O)
        |              MISSING Value for:  CH3 (P)
        |              MISSING Value for:  O-H (P)
        |              MISSING Value for:  CH2 (C)(P)
--------+-----------------------------------------------+------------+--------
 RESULT |  GROUP ESTIMATION METHOD for LOG GAMMA VALUE  | INCOMPLETE |  5.39
--------+-----------------------------------------------+------------+--------

------------------------------------------------------------------------------

Heat of Henry, MPP = 8.314 x 6000 = 49,884 J/mol

References

Schwarzenbach, R. P., Gschwend, P. M. and Imboden, D. M. (2005) Environmental Organic Chemistry, John Wiley & Sons, Inc., Hoboken, NJ
Appendix C. PFAM Default Values
The following default input parameters were used in the PFAM analysis. These parameters are located on the Physical tab of PFAM version 0.7.

Mass Transfer Coefficient [m/s] represents the mass transfer coefficient between the water column and the benthic zone.  It accounts for all means of mass transport and is referenced to the surrogate driving force of aqueous concentration differences.  It is a difficult parameter to measure.  Literature and EPA's own calibrations suggest a starting estimate of 10[-8] m/s.

Leakage [m/d] represents the dissipation of the pesticide in the water column due to leakage of the water column through the benthic region.  The model's assumptions are that only aqueous-phase pesticide leaks into the sediment, the leakage rate is constant, and only downward such that there is never leakage in the reverse direction (i.e., into the water column).  The default value is 0 m/d.

Reference Depth [m] represents the depth that aquatic measurements were made when determining factors such as suspended solids, biota, and DOC [m].  This usually will be set to 0.1 m.

Benthic Depth [m] is the depth of the benthic compartment.  This is another parameter that is difficult to estimate; however, literature and EPA's own calibrations suggest a value of about 0.05 m.

Benthic Porosity [unitless] is the porosity of the benthic compartment, or pore space volume per total volume.  The default value is set to that used by the EPA standard farm pond, 0.50.

Dry Bulk Density [g/cm[3]] is the rationally defined bulk density: [mass of sediment per total volume of sediment].  The default value is set to that used by the EPA standard farm pond, 1.35 g/cm[3].

Foc Water Column SS [unitless] is the fraction of organic carbon associated with suspended sediment. The default value is set to that used by the EPA standard farm pond, 0.04.

Foc Benthic [unitless] is the fraction of organic carbon associated with benthic sediment. The default value is set to that used by the EPA standard farm pond, 0.01.

SS [mg/L] is the suspended mass in the water column. The default value is set to that used by the EPA standard farm pond, 30 mg/L.

Water Column DOC [mg/L] represents the dissolved organic carbon concentration in the water column.  The default value is set to that used by the EPA standard farm pond, 5.0 mg/L. This parameter only affects the photolysis rate.

Chlorophyll, CHL [mg/L] represents the chlorophyll concentration in the water column.  The default value is set to that used by the EPA standard farm pond, 0.005 mg/L. This parameter only affects the photolysis rate.

Dfac [unitless] is a parameter used in the model EXAMS. It represents the ratio of the optical path length to vertical depth. The default value is set to1.19 as suggested by EXAMS documentation.

Q10 [unitless] is the Q10 value for metabolism.  The default value is 2, which is a typical value.
Appendix D. Example PFAM Outputs

Without Index Reservoir (pp1 file)

90[th] Percentile concentrations, derived from the PFAM pp1 files, were developed using the following process:
   1. Open file in Notepad (or any other word processing software.
   2. Search for the term "max".
   3. Copy information from Line 11 (line starting with "Event #") to blank line just above "max".
   4. Copy text into blank Excel spreadsheet.
   5. Select Data->Text to Columns menu/button option.
   6. Select Fixed Width in pop-up box and hit Next button.
   7. Remove extra delineations in Dry Field Runoff by double-clicking lines and select Finish button.
   8. Insert a column to the right of the Date (column B) and copy the following function "=year(b3)" into all of the cells in column C. Format column C as "General". Insert title "Year" into cell C2.
   9. Highlight data in columns C through F and select Insert->Pivot Table menu/button.
   10. Click Existing Worksheet radio button and select as the Location "h2"
   11. In Pivot Table Field List, drag Year to Row Labels, drag Type to Row Labels and drag Conc1(ug/L) to Values boxes.
   12. Click on Sum of Conc1, select Change Value Settings, and change to Max. Close Pivot Table Field List.
   13. Click the arrow to the right of Row Labels selection and change Year to Type in the drop down list. Click on the check box for "dry field runoff" to deselect it and hit Ok button.
   14. Highlight the 1961 cell and right mouse click on it. Select Expand/Collapse->Collapse Entire Field
   15. Highlight the Row Labels and click on the Filters button. Select the More Sort Options... menu and click on the Descending (Z to A) by: radio button.  From the active pull-down menu, select Max of Conc.  This should sort the list from highest to lowest concentration.
   16. Use the MSExcel Percentile function to estimate the 90[th] percentile (=Percentile(Range_of_data,0.9)).

	California, 1.46 lbs ai/A, 1 application to 4" depth paddy, dry application
*******************************************************************************
 Part 1: Record of Water and Mass Releases
 *******************************************************************************
 Records for all events in which pesticide mass was released whether from
 manual releases or from spill over from precipitation.
 *******************************************************************************
Event#  Date          Release        Released    Released    Released
                       Type          Volume(m3)  Conc1(ug/L) Conc2(ug/L)
    1  1/24/1961 dry field runoff    0.276E+04   0.000E+00   0.000E+00
    2  1/26/1961 dry field runoff    0.574E+04   0.000E+00   0.000E+00
    3  1/27/1961 dry field runoff    0.819E+04   0.000E+00   0.000E+00
    4  1/30/1961 dry field runoff    0.594E+04   0.000E+00   0.000E+00
    5  2/ 1/1961 dry field runoff    0.639E+04   0.000E+00   0.000E+00
    6  2/ 3/1961 dry field runoff    0.536E+04   0.000E+00   0.000E+00
    7  2/ 7/1961 dry field runoff    0.242E+03   0.000E+00   0.000E+00
    8  2/ 9/1961 dry field runoff    0.156E+04   0.000E+00   0.000E+00
    9  2/10/1961 dry field runoff    0.100E+04   0.000E+00   0.000E+00
   10  2/12/1961 dry field runoff    0.691E+02   0.000E+00   0.000E+00
   11  2/16/1961 dry field runoff    0.484E+03   0.000E+00   0.000E+00
   12  3/ 6/1961 dry field runoff    0.588E+03   0.000E+00   0.000E+00
   13  3/ 9/1961 dry field runoff    0.180E+04   0.000E+00   0.000E+00
   14  3/15/1961 dry field runoff    0.612E+04   0.000E+00   0.000E+00
   15  3/16/1961 dry field runoff    0.726E+03   0.000E+00   0.000E+00
   16  3/17/1961 dry field runoff    0.187E+04   0.000E+00   0.000E+00
   17  3/25/1961 dry field runoff    0.657E+03   0.000E+00   0.000E+00
   18  4/22/1961 dry field runoff    0.124E+04   0.000E+00   0.000E+00
   19  4/23/1961 dry field runoff    0.100E+04   0.000E+00   0.000E+00
   20  5/31/1961  manual release     0.336E+05   0.160E+03   0.374E+01
   21  9/17/1961 dry field runoff    0.760E+03   0.684E+01   0.227E-01
   22 11/20/1961 dry field runoff    0.829E+03   0.799E+00   0.359E-02
   23 11/21/1961 dry field runoff    0.553E+04   0.130E+00   0.540E-03
   24 11/26/1961 dry field runoff    0.356E+04   0.180E+00   0.821E-03
   25 11/30/1961 dry field runoff    0.802E+04   0.743E-01   0.342E-03
   26 12/ 1/1961 dry field runoff    0.677E+04   0.826E-01   0.352E-03
   27 12/ 2/1961 dry field runoff    0.363E+04   0.146E+00   0.624E-03
   28 12/ 3/1961 dry field runoff    0.165E+05   0.320E-01   0.137E-03
   29 12/19/1961 dry field runoff    0.346E+03   0.834E+00   0.400E-02
   30  1/13/1962 dry field runoff    0.726E+03   0.325E+00   0.166E-02
   31  1/20/1962 dry field runoff    0.736E+04   0.338E-01   0.175E-03
   32  2/ 7/1962 dry field runoff    0.242E+04   0.776E-01   0.419E-03
   33  2/ 8/1962 dry field runoff    0.764E+04   0.243E-01   0.126E-03
   34  2/ 9/1962 dry field runoff    0.484E+03   0.292E+00   0.151E-02
   35  2/10/1962 dry field runoff    0.194E+05   0.917E-02   0.481E-04
   36  2/11/1962 dry field runoff    0.132E+05   0.129E-01   0.671E-04
   37  2/13/1962 dry field runoff    0.238E+04   0.670E-01   0.366E-03
   38  2/14/1962 dry field runoff    0.480E+04   0.324E-01   0.170E-03
   39  2/15/1962 dry field runoff    0.117E+05   0.131E-01   0.687E-04
   40  2/16/1962 dry field runoff    0.567E+04   0.259E-01   0.136E-03
   41  2/17/1962 dry field runoff    0.276E+03   0.347E+00   0.182E-02
   42  2/19/1962 dry field runoff    0.256E+04   0.531E-01   0.295E-03
   43  3/ 1/1962 dry field runoff    0.311E+03   0.264E+00   0.152E-02
   44  3/ 2/1962 dry field runoff    0.245E+04   0.443E-01   0.246E-03
   45  3/ 6/1962 dry field runoff    0.442E+04   0.236E-01   0.137E-03
   46  3/ 7/1962 dry field runoff    0.314E+04   0.310E-01   0.171E-03
   47  3/23/1962 dry field runoff    0.933E+03   0.731E-01   0.447E-03
   48  4/28/1962 dry field runoff    0.449E+03   0.604E-01   0.435E-03
   49  5/31/1962  manual release     0.320E+05   0.168E+03   0.395E+01
   50 10/11/1962 dry field runoff    0.726E+03   0.547E+01   0.184E-01
   51 10/12/1962 dry field runoff    0.753E+04   0.578E+00   0.163E-02
   52 10/13/1962 dry field runoff    0.227E+05   0.184E+00   0.501E-03
   53 10/14/1962 dry field runoff    0.330E+05   0.120E+00   0.328E-03
   54 11/27/1962 dry field runoff    0.232E+04   0.490E+00   0.198E-02
   55 12/16/1962 dry field runoff    0.567E+04   0.141E+00   0.599E-03
   56 12/17/1962 dry field runoff    0.670E+04   0.113E+00   0.445E-03
   57 12/18/1962 dry field runoff    0.314E+04   0.227E+00   0.896E-03
   58  1/29/1963 dry field runoff    0.104E+03   0.168E+01   0.785E-02
   59  1/30/1963 dry field runoff    0.484E+04   0.810E-01   0.373E-03
   60  1/31/1963 dry field runoff    0.180E+05   0.213E-01   0.956E-04
   61  2/ 1/1963 dry field runoff    0.170E+05   0.219E-01   0.982E-04
   62  2/ 2/1963 dry field runoff    0.242E+03   0.945E+00   0.425E-02
   63  2/10/1963 dry field runoff    0.546E+04   0.588E-01   0.287E-03
   64  2/13/1963 dry field runoff    0.771E+04   0.394E-01   0.194E-03
   65  2/14/1963 dry field runoff    0.321E+04   0.869E-01   0.404E-03
   66  3/ 9/1963 dry field runoff    0.276E+03   0.440E+00   0.241E-02
   67  3/15/1963 dry field runoff    0.691E+03   0.194E+00   0.108E-02
   68  3/17/1963 dry field runoff    0.639E+04   0.234E-01   0.131E-03
   69  3/23/1963 dry field runoff    0.332E+04   0.388E-01   0.221E-03
   70  3/24/1963 dry field runoff    0.691E+03   0.151E+00   0.814E-03
   71  3/28/1963 dry field runoff    0.117E+05   0.100E-01   0.579E-04
   72  3/29/1963 dry field runoff    0.854E+04   0.128E-01   0.700E-04
   73  4/ 6/1963 dry field runoff    0.111E+04   0.774E-01   0.460E-03
   74  4/ 7/1963 dry field runoff    0.657E+04   0.136E-01   0.770E-04
   75  4/11/1963 dry field runoff    0.221E+04   0.362E-01   0.218E-03
   76  4/14/1963 dry field runoff    0.349E+04   0.218E-01   0.133E-03
   77  4/15/1963 dry field runoff    0.943E+04   0.777E-02   0.448E-04
   78  4/21/1963 dry field runoff    0.207E+03   0.189E+00   0.118E-02
   79  4/22/1963 dry field runoff    0.795E+03   0.677E-01   0.409E-03
   80  4/26/1963 dry field runoff    0.899E+03   0.563E-01   0.357E-03
   81  4/27/1963 dry field runoff    0.138E+03   0.197E+00   0.118E-02
   82  5/ 9/1963 dry field runoff    0.228E+04   0.181E-01   0.121E-03
   83  5/11/1963 dry field runoff    0.287E+04   0.137E-01   0.918E-04
   84  5/31/1963  manual release     0.331E+05   0.163E+03   0.371E+01
   85  9/13/1963 dry field runoff    0.346E+04   0.391E+01   0.110E-01
   86 10/11/1963 dry field runoff    0.297E+04   0.141E+01   0.486E-02
   87 10/12/1963 dry field runoff    0.235E+04   0.163E+01   0.447E-02
   88 10/16/1963 dry field runoff    0.131E+04   0.242E+01   0.847E-02
   89 11/ 3/1963 dry field runoff    0.176E+04   0.997E+00   0.375E-02
   90 11/ 5/1963 dry field runoff    0.546E+04   0.316E+00   0.119E-02
   91 11/ 6/1963 dry field runoff    0.546E+04   0.295E+00   0.962E-03
   92 11/14/1963 dry field runoff    0.138E+03   0.480E+01   0.185E-01
   93 11/15/1963 dry field runoff    0.760E+04   0.167E+00   0.610E-03
   94 11/16/1963 dry field runoff    0.588E+03   0.168E+01   0.575E-02
   95 11/20/1963 dry field runoff    0.791E+04   0.140E+00   0.548E-03
   96 11/21/1963 dry field runoff    0.380E+03   0.202E+01   0.707E-02
   97 11/24/1963 dry field runoff    0.629E+04   0.156E+00   0.614E-03
   98 12/ 9/1963 dry field runoff    0.207E+03   0.212E+01   0.863E-02
   99 12/20/1963 dry field runoff    0.183E+04   0.318E+00   0.132E-02
  100 12/21/1963 dry field runoff    0.104E+03   0.241E+01   0.939E-02
  101 12/25/1963 dry field runoff    0.176E+04   0.301E+00   0.126E-02
  102  1/14/1964 dry field runoff    0.829E+03   0.448E+00   0.197E-02
  103  1/18/1964 dry field runoff    0.933E+03   0.378E+00   0.168E-02
  104  1/20/1964 dry field runoff    0.249E+04   0.148E+00   0.661E-03
  105  1/21/1964 dry field runoff    0.214E+05   0.171E-01   0.724E-04
  106  1/22/1964 dry field runoff    0.584E+04   0.597E-01   0.252E-03
  107  1/23/1964 dry field runoff    0.138E+03   0.123E+01   0.519E-02
  108  1/29/1964 dry field runoff    0.691E+02   0.151E+01   0.692E-02
  109  1/30/1964 dry field runoff    0.311E+03   0.689E+00   0.310E-02
  110  2/16/1964 dry field runoff    0.691E+03   0.289E+00   0.140E-02
  111  3/ 2/1964 dry field runoff    0.435E+04   0.412E-01   0.210E-03
  112  3/12/1964 dry field runoff    0.142E+04   0.983E-01   0.517E-03
  113  3/23/1964 dry field runoff    0.276E+04   0.426E-01   0.233E-03
  114  4/ 1/1964 dry field runoff    0.111E+04   0.824E-01   0.466E-03
  115  4/ 2/1964 dry field runoff    0.276E+03   0.232E+00   0.124E-02
  116  5/31/1964  manual release     0.320E+05   0.168E+03   0.392E+01
  117  6/ 9/1964 dry field runoff    0.211E+04   0.298E+03   0.233E+00
  118 10/29/1964 dry field runoff    0.712E+04   0.306E+00   0.117E-02
  119 10/30/1964 dry field runoff    0.653E+04   0.309E+00   0.997E-03
  120 11/ 2/1964 dry field runoff    0.622E+03   0.246E+01   0.955E-02
  121 11/ 3/1964 dry field runoff    0.245E+04   0.681E+00   0.231E-02
  122 11/ 9/1964 dry field runoff    0.159E+04   0.861E+00   0.337E-02
  123 11/10/1964 dry field runoff    0.442E+04   0.306E+00   0.106E-02
  124 11/11/1964 dry field runoff    0.442E+04   0.293E+00   0.101E-02
  125 11/12/1964 dry field runoff    0.249E+04   0.486E+00   0.168E-02
  126 11/22/1964 dry field runoff    0.553E+03   0.147E+01   0.586E-02
  127 11/26/1964 dry field runoff    0.138E+03   0.332E+01   0.133E-01
  128 12/ 1/1964 dry field runoff    0.484E+03   0.135E+01   0.548E-02
  129 12/ 3/1964 dry field runoff    0.156E+04   0.473E+00   0.193E-02
  130 12/ 5/1964 dry field runoff    0.346E+02   0.428E+01   0.175E-01
  131 12/15/1964 dry field runoff    0.691E+02   0.300E+01   0.127E-01
  132 12/19/1964 dry field runoff    0.218E+04   0.256E+00   0.110E-02
  133 12/20/1964 dry field runoff    0.218E+04   0.242E+00   0.967E-03
  134 12/21/1964 dry field runoff    0.518E+04   0.102E+00   0.408E-03
  135 12/22/1964 dry field runoff    0.674E+04   0.761E-01   0.305E-03
  136 12/23/1964 dry field runoff    0.174E+05   0.288E-01   0.116E-03
  137 12/24/1964 dry field runoff    0.142E+04   0.313E+00   0.126E-02
  138 12/27/1964 dry field runoff    0.353E+04   0.127E+00   0.559E-03
  139 12/28/1964 dry field runoff    0.691E+03   0.525E+00   0.214E-02
  140 12/29/1964 dry field runoff    0.138E+03   0.151E+01   0.623E-02
  141 12/30/1964 dry field runoff    0.256E+04   0.155E+00   0.660E-03
  142 12/31/1964 dry field runoff    0.104E+04   0.338E+00   0.139E-02
  143  1/ 3/1965 dry field runoff    0.325E+04   0.112E+00   0.501E-03
  144  1/ 4/1965 dry field runoff    0.204E+04   0.165E+00   0.686E-03
  145  1/ 5/1965 dry field runoff    0.238E+04   0.138E+00   0.575E-03
  146  1/ 6/1965 dry field runoff    0.743E+04   0.444E-01   0.186E-03
  147  1/ 7/1965 dry field runoff    0.124E+04   0.234E+00   0.978E-03
  148  1/12/1965 dry field runoff    0.207E+03   0.857E+00   0.390E-02
  149  1/20/1965 dry field runoff    0.263E+04   0.940E-01   0.439E-03
  150  1/24/1965 dry field runoff    0.273E+04   0.837E-01   0.393E-03
  151  2/ 5/1965 dry field runoff    0.183E+04   0.996E-01   0.484E-03
  152  3/13/1965 dry field runoff    0.166E+04   0.588E-01   0.324E-03
  153  3/27/1965 dry field runoff    0.169E+04   0.433E-01   0.251E-03
  154  3/28/1965 dry field runoff    0.263E+04   0.271E-01   0.148E-03
  155  4/ 1/1965 dry field runoff    0.308E+04   0.216E-01   0.127E-03
  156  4/ 8/1965 dry field runoff    0.114E+04   0.465E-01   0.280E-03
  157  4/ 9/1965 dry field runoff    0.228E+04   0.233E-01   0.133E-03
  158  4/10/1965 dry field runoff    0.605E+04   0.878E-02   0.501E-04
  159  4/11/1965 dry field runoff    0.346E+02   0.294E+00   0.167E-02
  160  4/13/1965 dry field runoff    0.691E+03   0.616E-01   0.375E-03
  161  4/14/1965 dry field runoff    0.124E+04   0.351E-01   0.204E-03
  162  4/16/1965 dry field runoff    0.162E+04   0.267E-01   0.163E-03
  163  4/17/1965 dry field runoff    0.933E+03   0.413E-01   0.241E-03
  164  4/21/1965 dry field runoff    0.173E+03   0.131E+00   0.816E-03
  165  5/31/1965  manual release     0.330E+05   0.162E+03   0.412E+01
  166  8/12/1965 dry field runoff    0.498E+04   0.122E+02   0.248E-01
  167 11/ 9/1965 dry field runoff    0.622E+03   0.305E+01   0.113E-01
  168 11/13/1965 dry field runoff    0.149E+04   0.126E+01   0.475E-02
  169 11/14/1965 dry field runoff    0.646E+04   0.292E+00   0.963E-03
  170 11/15/1965 dry field runoff    0.138E+04   0.121E+01   0.395E-02
  171 11/17/1965 dry field runoff    0.162E+04   0.995E+00   0.377E-02
  172 11/18/1965 dry field runoff    0.207E+04   0.743E+00   0.248E-02
  173 11/19/1965 dry field runoff    0.968E+03   0.142E+01   0.475E-02
  174 11/23/1965 dry field runoff    0.518E+03   0.216E+01   0.835E-02
  175 11/24/1965 dry field runoff    0.114E+04   0.105E+01   0.368E-02
  176 11/25/1965 dry field runoff    0.415E+04   0.302E+00   0.104E-02
  177 12/12/1965 dry field runoff    0.494E+04   0.182E+00   0.725E-03
  178 12/13/1965 dry field runoff    0.691E+02   0.410E+01   0.151E-01
  179 12/25/1965 dry field runoff    0.394E+04   0.183E+00   0.742E-03
  180 12/26/1965 dry field runoff    0.346E+02   0.397E+01   0.151E-01
  181 12/29/1965 dry field runoff    0.712E+04   0.957E-01   0.391E-03
  182 12/31/1965 dry field runoff    0.218E+04   0.287E+00   0.118E-02
  183  1/ 5/1966 dry field runoff    0.190E+04   0.301E+00   0.125E-02
  184  1/ 6/1966 dry field runoff    0.346E+03   0.119E+01   0.469E-02
  185  1/23/1966 dry field runoff    0.380E+03   0.893E+00   0.391E-02
  186  1/30/1966 dry field runoff    0.971E+04   0.423E-01   0.189E-03
  187  1/31/1966 dry field runoff    0.152E+04   0.237E+00   0.997E-03
  188  2/ 2/1966 dry field runoff    0.232E+04   0.157E+00   0.705E-03
  189  2/ 4/1966 dry field runoff    0.121E+04   0.272E+00   0.123E-02
  190  2/ 5/1966 dry field runoff    0.111E+04   0.279E+00   0.120E-02
  191  2/ 6/1966 dry field runoff    0.138E+04   0.222E+00   0.953E-03
  192  2/20/1966 dry field runoff    0.176E+04   0.145E+00   0.685E-03
  193  2/23/1966 dry field runoff    0.138E+03   0.919E+00   0.438E-02
  194  2/25/1966 dry field runoff    0.311E+03   0.547E+00   0.263E-02
  195  2/26/1966 dry field runoff    0.183E+04   0.120E+00   0.556E-03
  196  4/10/1966 dry field runoff    0.864E+03   0.106E+00   0.607E-03
  197  4/12/1966 dry field runoff    0.114E+04   0.778E-01   0.450E-03
  198  5/10/1966 dry field runoff    0.449E+03   0.774E-01   0.521E-03
  199  5/31/1966  manual release     0.321E+05   0.166E+03   0.451E+01
  200 11/ 7/1966 dry field runoff    0.129E+05   0.132E+00   0.531E-03
  201 11/15/1966 dry field runoff    0.484E+03   0.217E+01   0.897E-02
  202 11/16/1966 dry field runoff    0.484E+04   0.258E+00   0.975E-03
  203 11/17/1966 dry field runoff    0.245E+04   0.472E+00   0.174E-02
  204 11/20/1966 dry field runoff    0.110E+05   0.102E+00   0.430E-03
  205 11/21/1966 dry field runoff    0.366E+04   0.281E+00   0.105E-02
  206 11/22/1966 dry field runoff    0.263E+04   0.371E+00   0.140E-02
  207 11/29/1966 dry field runoff    0.729E+04   0.119E+00   0.508E-03
  208 12/ 2/1966 dry field runoff    0.180E+04   0.419E+00   0.181E-02
  209 12/ 3/1966 dry field runoff    0.854E+04   0.884E-01   0.349E-03
  210 12/ 5/1966 dry field runoff    0.588E+04   0.123E+00   0.531E-03
  211 12/ 6/1966 dry field runoff    0.702E+04   0.973E-01   0.386E-03
  212 12/ 7/1966 dry field runoff    0.276E+04   0.231E+00   0.917E-03
  213 12/10/1966 dry field runoff    0.204E+04   0.292E+00   0.128E-02
  214 12/24/1966 dry field runoff    0.346E+02   0.272E+01   0.123E-01
  215  1/21/1967 dry field runoff    0.112E+05   0.284E-01   0.138E-03
  216  1/22/1967 dry field runoff    0.262E+05   0.116E-01   0.533E-04
  217  1/24/1967 dry field runoff    0.933E+03   0.277E+00   0.135E-02
  218  1/25/1967 dry field runoff    0.102E+05   0.275E-01   0.129E-03
  219  1/27/1967 dry field runoff    0.173E+04   0.148E+00   0.726E-03
  220  1/29/1967 dry field runoff    0.639E+04   0.405E-01   0.200E-03
  221  1/30/1967 dry field runoff    0.591E+04   0.414E-01   0.194E-03
  222  1/31/1967 dry field runoff    0.677E+04   0.351E-01   0.165E-03
  223  2/ 1/1967 dry field runoff    0.173E+03   0.742E+00   0.348E-02
  224  2/25/1967 dry field runoff    0.135E+04   0.108E+00   0.583E-03
  225  2/26/1967 dry field runoff    0.162E+04   0.862E-01   0.442E-03
  226  3/11/1967 dry field runoff    0.100E+04   0.107E+00   0.605E-03
  227  3/12/1967 dry field runoff    0.449E+04   0.252E-01   0.135E-03
  228  3/13/1967 dry field runoff    0.429E+04   0.254E-01   0.136E-03
  229  3/14/1967 dry field runoff    0.173E+04   0.580E-01   0.311E-03
  230  3/16/1967 dry field runoff    0.270E+04   0.372E-01   0.212E-03
  231  3/17/1967 dry field runoff    0.740E+04   0.132E-01   0.716E-04
  232  3/31/1967 dry field runoff    0.615E+04   0.123E-01   0.739E-04
  233  4/ 6/1967 dry field runoff    0.107E+04   0.561E-01   0.343E-03
  234  4/ 7/1967 dry field runoff    0.698E+04   0.905E-02   0.527E-04
  235  4/11/1967 dry field runoff    0.318E+04   0.181E-01   0.112E-03
  236  4/16/1967 dry field runoff    0.242E+04   0.210E-01   0.132E-03
  237  4/18/1967 dry field runoff    0.121E+04   0.378E-01   0.238E-03
  238  4/19/1967 dry field runoff    0.135E+04   0.325E-01   0.196E-03
  239  4/20/1967 dry field runoff    0.864E+03   0.464E-01   0.280E-03
  240  4/22/1967 dry field runoff    0.515E+04   0.860E-02   0.546E-04
  241  4/24/1967 dry field runoff    0.104E+04   0.366E-01   0.234E-03
  242  5/31/1967  manual release     0.341E+05   0.157E+03   0.403E+01
  243  6/ 2/1967 dry field runoff    0.622E+03   0.108E+04   0.751E+00
  244  6/ 3/1967 dry field runoff    0.111E+04   0.620E+03   0.142E+00
  245 10/ 6/1967 dry field runoff    0.276E+03   0.763E+01   0.280E-01
  246 11/15/1967 dry field runoff    0.131E+04   0.571E+00   0.257E-02
  247 11/28/1967 dry field runoff    0.795E+03   0.618E+00   0.291E-02
  248 11/30/1967 dry field runoff    0.328E+04   0.159E+00   0.750E-03
  249 12/ 1/1967 dry field runoff    0.249E+04   0.195E+00   0.840E-03
  250 12/ 4/1967 dry field runoff    0.795E+03   0.516E+00   0.244E-02
  251 12/ 5/1967 dry field runoff    0.456E+04   0.972E-01   0.429E-03
  252 12/ 8/1967 dry field runoff    0.200E+04   0.201E+00   0.960E-03
  253 12/18/1967 dry field runoff    0.726E+03   0.410E+00   0.199E-02
  254 12/19/1967 dry field runoff    0.346E+02   0.190E+01   0.874E-02
  255  1/ 2/1968 dry field runoff    0.691E+02   0.133E+01   0.666E-02
  256  1/ 9/1968 dry field runoff    0.311E+03   0.566E+00   0.287E-02
  257  1/11/1968 dry field runoff    0.743E+04   0.328E-01   0.166E-03
  258  1/14/1968 dry field runoff    0.138E+03   0.833E+00   0.425E-02
  259  1/15/1968 dry field runoff    0.719E+04   0.310E-01   0.155E-03
  260  1/16/1968 dry field runoff    0.484E+03   0.347E+00   0.170E-02
  261  1/30/1968 dry field runoff    0.328E+04   0.530E-01   0.283E-03
  262  1/31/1968 dry field runoff    0.105E+05   0.162E-01   0.826E-04
  263  2/ 2/1968 dry field runoff    0.484E+03   0.269E+00   0.144E-02
  264  2/ 3/1968 dry field runoff    0.622E+03   0.210E+00   0.109E-02
  265  2/17/1968 dry field runoff    0.359E+04   0.348E-01   0.196E-03
  266  2/18/1968 dry field runoff    0.259E+04   0.449E-01   0.241E-03
  267  2/20/1968 dry field runoff    0.418E+04   0.276E-01   0.157E-03
  268  2/22/1968 dry field runoff    0.311E+04   0.349E-01   0.200E-03
  269  2/23/1968 dry field runoff    0.691E+02   0.503E+00   0.272E-02
  270  3/ 8/1968 dry field runoff    0.491E+04   0.162E-01   0.994E-04
  271  3/ 9/1968 dry field runoff    0.760E+03   0.848E-01   0.488E-03
  272  3/13/1968 dry field runoff    0.636E+04   0.109E-01   0.680E-04
  273  3/14/1968 dry field runoff    0.270E+04   0.234E-01   0.137E-03
  274  3/17/1968 dry field runoff    0.245E+04   0.241E-01   0.153E-03
  275  4/ 2/1968 dry field runoff    0.318E+04   0.131E-01   0.879E-04
  276  5/14/1968 dry field runoff    0.449E+03   0.260E-01   0.210E-03
  277  5/31/1968  manual release     0.320E+05   0.167E+03   0.413E+01
  278 10/12/1968 dry field runoff    0.311E+03   0.821E+01   0.291E-01
  279 10/13/1968 dry field runoff    0.124E+04   0.252E+01   0.784E-02
  280 10/15/1968 dry field runoff    0.553E+03   0.470E+01   0.167E-01
  281 10/30/1968 dry field runoff    0.553E+03   0.296E+01   0.111E-01
  282 10/31/1968 dry field runoff    0.449E+03   0.328E+01   0.110E-01
  283 11/ 3/1968 dry field runoff    0.581E+04   0.303E+00   0.115E-02
  284 11/ 4/1968 dry field runoff    0.664E+04   0.249E+00   0.828E-03
  285 11/12/1968 dry field runoff    0.242E+03   0.361E+01   0.141E-01
  286 11/15/1968 dry field runoff    0.339E+04   0.363E+00   0.144E-02
  287 11/16/1968 dry field runoff    0.691E+02   0.564E+01   0.198E-01
  288 11/19/1968 dry field runoff    0.204E+04   0.523E+00   0.209E-02
  289 11/30/1968 dry field runoff    0.726E+03   0.102E+01   0.420E-02
  290 12/ 8/1968 dry field runoff    0.484E+03   0.120E+01   0.503E-02
  291 12/ 9/1968 dry field runoff    0.346E+03   0.147E+01   0.578E-02
  292 12/11/1968 dry field runoff    0.391E+04   0.172E+00   0.724E-03
  293 12/14/1968 dry field runoff    0.432E+04   0.146E+00   0.618E-03
  294 12/15/1968 dry field runoff    0.159E+04   0.356E+00   0.140E-02
  295 12/16/1968 dry field runoff    0.349E+04   0.164E+00   0.651E-03
  296 12/24/1968 dry field runoff    0.553E+03   0.761E+00   0.328E-02
  297 12/25/1968 dry field runoff    0.311E+04   0.155E+00   0.637E-03
  298 12/26/1968 dry field runoff    0.197E+04   0.231E+00   0.938E-03
  299 12/29/1968 dry field runoff    0.311E+03   0.104E+01   0.449E-02
  300  1/12/1969 dry field runoff    0.314E+04   0.117E+00   0.524E-03
  301  1/13/1969 dry field runoff    0.473E+04   0.745E-01   0.318E-03
  302  1/14/1969 dry field runoff    0.992E+04   0.351E-01   0.150E-03
  303  1/19/1969 dry field runoff    0.712E+04   0.457E-01   0.209E-03
  304  1/20/1969 dry field runoff    0.139E+05   0.225E-01   0.972E-04
  305  1/21/1969 dry field runoff    0.702E+04   0.426E-01   0.184E-03
  306  1/22/1969 dry field runoff    0.349E+04   0.813E-01   0.353E-03
  307  1/24/1969 dry field runoff    0.207E+03   0.823E+00   0.380E-02
  308  1/25/1969 dry field runoff    0.491E+04   0.550E-01   0.247E-03
  309  1/26/1969 dry field runoff    0.743E+04   0.352E-01   0.155E-03
  310  1/27/1969 dry field runoff    0.591E+04   0.427E-01   0.187E-03
  311  1/30/1969 dry field runoff    0.138E+03   0.884E+00   0.414E-02
  312  2/ 5/1969 dry field runoff    0.138E+03   0.804E+00   0.382E-02
  313  2/ 6/1969 dry field runoff    0.916E+04   0.235E-01   0.109E-03
  314  2/ 7/1969 dry field runoff    0.425E+04   0.477E-01   0.215E-03
  315  2/10/1969 dry field runoff    0.183E+04   0.102E+00   0.493E-03
  316  2/12/1969 dry field runoff    0.119E+05   0.161E-01   0.778E-04
  317  2/15/1969 dry field runoff    0.259E+04   0.660E-01   0.323E-03
  318  2/16/1969 dry field runoff    0.169E+04   0.931E-01   0.430E-03
  319  2/18/1969 dry field runoff    0.211E+04   0.741E-01   0.364E-03
  320  2/19/1969 dry field runoff    0.353E+04   0.430E-01   0.201E-03
  321  2/20/1969 dry field runoff    0.104E+03   0.617E+00   0.287E-02
  322  2/24/1969 dry field runoff    0.321E+04   0.435E-01   0.217E-03
  323  2/25/1969 dry field runoff    0.397E+04   0.335E-01   0.158E-03
  324  2/26/1969 dry field runoff    0.135E+04   0.896E-01   0.424E-03
  325  2/28/1969 dry field runoff    0.691E+02   0.614E+00   0.308E-02
  326  3/ 1/1969 dry field runoff    0.581E+04   0.213E-01   0.106E-03
  327  3/ 3/1969 dry field runoff    0.829E+03   0.125E+00   0.634E-03
  328  3/13/1969 dry field runoff    0.321E+04   0.303E-01   0.159E-03
  329  3/21/1969 dry field runoff    0.166E+04   0.487E-01   0.261E-03
  330  4/ 6/1969 dry field runoff    0.854E+04   0.739E-02   0.423E-04
  331  4/24/1969 dry field runoff    0.359E+04   0.113E-01   0.704E-04
  332  5/31/1969  manual release     0.314E+05   0.170E+03   0.452E+01
  333 10/16/1969 dry field runoff    0.563E+04   0.455E+00   0.172E-02
  334 11/ 6/1969 dry field runoff    0.501E+04   0.274E+00   0.112E-02
  335 12/ 9/1969 dry field runoff    0.131E+04   0.459E+00   0.209E-02
  336 12/11/1969 dry field runoff    0.131E+04   0.437E+00   0.199E-02
  337 12/19/1969 dry field runoff    0.176E+04   0.287E+00   0.134E-02
  338 12/20/1969 dry field runoff    0.809E+04   0.630E-01   0.276E-03
  339 12/21/1969 dry field runoff    0.978E+04   0.504E-01   0.221E-03
  340 12/22/1969 dry field runoff    0.491E+04   0.958E-01   0.420E-03
  341 12/24/1969 dry field runoff    0.104E+04   0.399E+00   0.188E-02
  342 12/25/1969 dry field runoff    0.567E+04   0.768E-01   0.342E-03
  343 12/26/1969 dry field runoff    0.415E+03   0.770E+00   0.341E-02
  344  1/ 9/1970 dry field runoff    0.757E+04   0.447E-01   0.221E-03
  345  1/10/1970 dry field runoff    0.273E+04   0.113E+00   0.527E-03
  346  1/12/1970 dry field runoff    0.159E+04   0.183E+00   0.910E-03
  347  1/14/1970 dry field runoff    0.684E+04   0.434E-01   0.216E-03
  348  1/15/1970 dry field runoff    0.128E+05   0.222E-01   0.105E-03
  349  1/16/1970 dry field runoff    0.363E+04   0.734E-01   0.346E-03
  350  1/17/1970 dry field runoff    0.581E+04   0.451E-01   0.213E-03
  351  1/18/1970 dry field runoff    0.183E+04   0.131E+00   0.622E-03
  352  1/20/1970 dry field runoff    0.214E+04   0.111E+00   0.559E-03
  353  1/21/1970 dry field runoff    0.626E+04   0.374E-01   0.179E-03
  354  1/22/1970 dry field runoff    0.619E+04   0.365E-01   0.175E-03
  355  1/24/1970 dry field runoff    0.197E+04   0.107E+00   0.543E-03
  356  1/28/1970 dry field runoff    0.270E+04   0.729E-01   0.377E-03
  357  2/ 1/1970 dry field runoff    0.276E+03   0.452E+00   0.236E-02
  358  2/12/1970 dry field runoff    0.346E+02   0.853E+00   0.466E-02
  359  2/13/1970 dry field runoff    0.128E+04   0.104E+00   0.565E-03
  360  2/14/1970 dry field runoff    0.453E+04   0.301E-01   0.156E-03
  361  2/17/1970 dry field runoff    0.107E+04   0.110E+00   0.609E-03
  362  2/18/1970 dry field runoff    0.225E+04   0.527E-01   0.277E-03
  363  3/ 1/1970 dry field runoff    0.214E+04   0.451E-01   0.260E-03
  364  3/ 2/1970 dry field runoff    0.391E+04   0.240E-01   0.131E-03
  365  3/ 5/1970 dry field runoff    0.480E+04   0.187E-01   0.109E-03
  366  3/ 8/1970 dry field runoff    0.218E+04   0.370E-01   0.217E-03
  367  3/ 9/1970 dry field runoff    0.242E+03   0.210E+00   0.117E-02
  368  3/10/1970 dry field runoff    0.100E+04   0.692E-01   0.393E-03
  369  4/14/1970 dry field runoff    0.657E+03   0.465E-01   0.320E-03
  370  5/31/1970  manual release     0.300E+05   0.178E+03   0.500E+01
  371  6/ 9/1970 dry field runoff    0.346E+02   0.355E+04   0.339E+01
  372 10/21/1970 dry field runoff    0.145E+04   0.145E+01   0.564E-02
  373 10/22/1970 dry field runoff    0.173E+04   0.115E+01   0.381E-02
  374 10/24/1970 dry field runoff    0.204E+04   0.926E+00   0.362E-02
  375 11/ 5/1970 dry field runoff    0.982E+04   0.143E+00   0.574E-03
  376 11/ 6/1970 dry field runoff    0.297E+04   0.426E+00   0.152E-02
  377 11/ 7/1970 dry field runoff    0.249E+04   0.484E+00   0.174E-02
  378 11/25/1970 dry field runoff    0.197E+04   0.398E+00   0.172E-02
  379 11/26/1970 dry field runoff    0.297E+04   0.254E+00   0.100E-02
  380 11/27/1970 dry field runoff    0.145E+04   0.477E+00   0.188E-02
  381 11/29/1970 dry field runoff    0.206E+05   0.353E-01   0.154E-03
  382 11/30/1970 dry field runoff    0.136E+05   0.501E-01   0.199E-03
  383 12/ 1/1970 dry field runoff    0.387E+04   0.165E+00   0.657E-03
  384 12/ 2/1970 dry field runoff    0.318E+04   0.192E+00   0.768E-03
  385 12/ 3/1970 dry field runoff    0.180E+04   0.316E+00   0.127E-02
  386 12/ 4/1970 dry field runoff    0.187E+04   0.294E+00   0.119E-02
  387 12/ 5/1970 dry field runoff    0.370E+04   0.148E+00   0.602E-03
  388 12/ 7/1970 dry field runoff    0.242E+03   0.143E+01   0.631E-02
  389 12/ 8/1970 dry field runoff    0.346E+02   0.294E+01   0.124E-01
  390 12/ 9/1970 dry field runoff    0.346E+03   0.106E+01   0.464E-02
  391 12/14/1970 dry field runoff    0.968E+03   0.419E+00   0.189E-02
  392 12/16/1970 dry field runoff    0.104E+04   0.374E+00   0.169E-02
  393 12/17/1970 dry field runoff    0.297E+04   0.134E+00   0.568E-03
  394 12/19/1970 dry field runoff    0.518E+03   0.612E+00   0.278E-02
  395 12/21/1970 dry field runoff    0.342E+04   0.108E+00   0.493E-03
  396 12/22/1970 dry field runoff    0.760E+03   0.403E+00   0.171E-02
  397 12/27/1970 dry field runoff    0.245E+04   0.130E+00   0.600E-03
  398 12/28/1970 dry field runoff    0.726E+03   0.368E+00   0.159E-02
  399 12/29/1970 dry field runoff    0.346E+02   0.174E+01   0.760E-02
  400 12/30/1970 dry field runoff    0.173E+03   0.979E+00   0.447E-02
  401  1/ 2/1971 dry field runoff    0.214E+04   0.129E+00   0.601E-03
  402  1/12/1971 dry field runoff    0.829E+03   0.258E+00   0.123E-02
  403  1/13/1971 dry field runoff    0.304E+04   0.749E-01   0.341E-03
  404  1/19/1971 dry field runoff    0.104E+03   0.890E+00   0.431E-02
  405  1/20/1971 dry field runoff    0.691E+02   0.100E+01   0.475E-02
  406  2/17/1971 dry field runoff    0.294E+04   0.452E-01   0.240E-03
  407  2/19/1971 dry field runoff    0.829E+03   0.136E+00   0.726E-03
  408  3/13/1971 dry field runoff    0.570E+04   0.156E-01   0.892E-04
  409  3/24/1971 dry field runoff    0.370E+04   0.193E-01   0.114E-03
  410  3/26/1971 dry field runoff    0.270E+04   0.248E-01   0.147E-03
  411  3/27/1971 dry field runoff    0.176E+04   0.348E-01   0.197E-03
  412  4/ 7/1971 dry field runoff    0.276E+03   0.127E+00   0.798E-03
  413  5/ 3/1971 dry field runoff    0.328E+04   0.859E-02   0.599E-04
  414  5/ 9/1971 dry field runoff    0.104E+04   0.215E-01   0.153E-03
  415  5/31/1971  manual release     0.332E+05   0.162E+03   0.373E+01
  416 11/12/1971 dry field runoff    0.145E+04   0.898E+00   0.361E-02
  417 11/13/1971 dry field runoff    0.968E+03   0.122E+01   0.444E-02
  418 11/14/1971 dry field runoff    0.194E+04   0.627E+00   0.231E-02
  419 11/29/1971 dry field runoff    0.691E+03   0.116E+01   0.491E-02
  420 12/ 3/1971 dry field runoff    0.114E+04   0.690E+00   0.295E-02
  421 12/ 4/1971 dry field runoff    0.166E+04   0.465E+00   0.185E-02
  422 12/11/1971 dry field runoff    0.104E+03   0.300E+01   0.130E-01
  423 12/13/1971 dry field runoff    0.124E+04   0.513E+00   0.224E-02
  424 12/22/1971 dry field runoff    0.449E+04   0.131E+00   0.584E-03
  425 12/23/1971 dry field runoff    0.346E+04   0.160E+00   0.670E-03
  426 12/25/1971 dry field runoff    0.529E+04   0.104E+00   0.463E-03
  427 12/26/1971 dry field runoff    0.473E+04   0.109E+00   0.460E-03
  428 12/27/1971 dry field runoff    0.553E+03   0.741E+00   0.312E-02
  429 12/28/1971 dry field runoff    0.660E+04   0.747E-01   0.320E-03
  430 12/29/1971 dry field runoff    0.484E+03   0.775E+00   0.328E-02
  431 12/30/1971 dry field runoff    0.553E+03   0.683E+00   0.293E-02
  432  1/21/1972 dry field runoff    0.691E+02   0.169E+01   0.796E-02
  433  1/23/1972 dry field runoff    0.104E+03   0.141E+01   0.667E-02
  434  1/26/1972 dry field runoff    0.346E+02   0.186E+01   0.889E-02
  435  1/27/1972 dry field runoff    0.124E+04   0.235E+00   0.111E-02
  436  1/28/1972 dry field runoff    0.259E+04   0.114E+00   0.522E-03
  437  2/ 5/1972 dry field runoff    0.933E+03   0.262E+00   0.128E-02
  438  2/ 6/1972 dry field runoff    0.788E+04   0.335E-01   0.158E-03
  439  2/26/1972 dry field runoff    0.138E+03   0.708E+00   0.372E-02
  440  3/23/1972 dry field runoff    0.449E+03   0.191E+00   0.114E-02
  441  4/ 6/1972 dry field runoff    0.259E+04   0.289E-01   0.184E-03
  442  4/12/1972 dry field runoff    0.795E+03   0.716E-01   0.465E-03
  443  4/13/1972 dry field runoff    0.518E+03   0.957E-01   0.587E-03
  444  4/25/1972 dry field runoff    0.225E+04   0.204E-01   0.139E-03
  445  5/21/1972 dry field runoff    0.518E+03   0.365E-01   0.284E-03
  446  5/31/1972  manual release     0.318E+05   0.168E+03   0.448E+01
  447  6/10/1972 dry field runoff    0.242E+03   0.162E+04   0.148E+01
  448  9/26/1972 dry field runoff    0.159E+04   0.373E+01   0.119E-01
  449  9/27/1972 dry field runoff    0.214E+04   0.262E+01   0.666E-02
  450  9/28/1972 dry field runoff    0.159E+04   0.328E+01   0.831E-02
  451 10/10/1972 dry field runoff    0.200E+04   0.176E+01   0.597E-02
  452 10/11/1972 dry field runoff    0.135E+04   0.235E+01   0.662E-02
  453 10/12/1972 dry field runoff    0.636E+04   0.514E+00   0.146E-02
  454 10/13/1972 dry field runoff    0.311E+03   0.698E+01   0.196E-01
  455 10/15/1972 dry field runoff    0.156E+04   0.177E+01   0.609E-02
  456 10/17/1972 dry field runoff    0.415E+03   0.496E+01   0.172E-01
  457 11/ 4/1972 dry field runoff    0.491E+04   0.317E+00   0.119E-02
  458 11/ 5/1972 dry field runoff    0.518E+03   0.226E+01   0.738E-02
  459 11/ 8/1972 dry field runoff    0.211E+04   0.623E+00   0.235E-02