Remember, when testing groundwater, you should get not only the well water tested, but also the water that comes from the tap.
दहको पानी देख्दा निकै गहिरा हुन सक्ने अनुमान गरिने कुपिण्डे दहको अध्यन अनुसंन्धान हुनु जरुरी छ ।