pennsylvania known harvey lake natural lake pennsylvania surface area approximately acres nearly square mile lake situated entirely borough volume largest natural lake pennsylvania surface area second largest lake glacial lake surrounded hills source tributary lake stone masonry dam lake watershed area approximately acres majority watershed forested developed land nearly developed land close lake lake surrounded entirely paved road affected algae mid-20th century onward algae caused pollution nutrients especially lake identified impaired annual load pounds load reduced somewhat lake listed number rare endangered plant species observed vicinity species fish inhabit lake number bird species observed vicinity accidentally discovered settlers arrived lake 1800s early industries area included farming known summer resort 1800s 1900s water supply early 1900s lake began develop significant environmental problems 1960s total maximum daily load created lake located borough geography largest natural lake pennsylvania volume second largest surface area surface area acres average depth feet meters maximum depth feet lake shoreline miles long surface area approximately twice current size surveyed late situated borough miles northwest city glacial origin surrounded steep hills sides highest point south lake hills reach feet lake elevation lake gravel main outflow tributary lake major include unnamed streams feet depths inches springs feed lake elevation feet sea level lake located north central drainage basin basin book described shape irregular lake maximum length feet maximum width feet capacity billion gallons million cubic metres stone masonry dam dam feet long feet high described beautiful lakes pennsylvania book history county pennsylvania watershed situated united_states geological survey watershed lake area acres watershed portion vast majority acres watershed forested land developed land farmland comprise acres acres respectively roads acres watershed majority developed land watershed directly shoreline nearly miles lake developed land residential commercial purposes developed area watershed known gardens occupies area acres homes development steep slopes percent grade roads infrastructure dealing nutrient separating box water unit installed development reducing load estimated pounds year shoreline entirely surrounded paved road lake shoreline homes cottages situated road opposite lake significant development occurred vicinity lake ditch outlet drainage structure concrete place drains lake purpose control small scale local road flooding waters described having great purity lake experienced nutrient pollution especially mid-20th century algae occurred lake caused reduction water quality half 20th century sewage system installed borough summer completely stop algae load lake reduced percent lake identified impaired cause large algae areas lake 1990s concentration waters measured annual load pounds year lake total maximum daily load pounds year 1990s pounds annual load came internal loading pounds came pounds came developed land pounds came smaller sources included farmland pounds year forests pounds year systems pounds year roads pounds year hydraulic residence time days lake causes substantially reduced peak flood flows visibility lake typically approximately feet low feet high feet history recreation entered august named lake named member settlers harvey inadvertently discovered lake returning home held prisoner war fort resident vicinity lake arrived early settlers arrived lake surveyed person european descent explore lake canoe early settlers vicinity mainly engaged farming common occupation point 1800s mills cutting million board feet lumber annually lake summer resorts residents began appearing near lake hotels later hotel hotels lake late 1800s grand hotel especially prominent early 1900s united_states president visited hotel august early 1900s hotels cottages lake feet water line constructed late 1800s ran directly 1890s railroad lines constructed lake communities popular recreational purposes late 1800s places popular recreational areas near lake early 1900s time period carrying passengers freight recreational rides lake popular foot meter high shoot built area largest attractions lake vicinity casino near lake opened demolished opened largest bowling alley northeast pennsylvania near lake 20th century prior world war lake attracted thousands visitors yearly early 1900s water supply private ice supply summer resort subject scientific studies late 1940s conducted studies 1960s began develop environmental problems subject number studies late 1980s early 1990s studies indicated lake algae caused closed swimming completed lake modern times main recreational uses include swimming fishing boating lacks public access locations diving according document lake heavily lakes area situated borough january borough incorporated plan develop patch wetland boat slips near lake opposed safety concerns poor visibility environmental concerns biology listed numerous rare endangered plant species observed vicinity plants vicinity lake include flat grassy broad water water exotic invasive plants aquatic inhabit area altered habitat vicinity lake second growth forests occur area surrounding lake algae occurred high levels nutrients water inhabited species native fish pennsylvania field stream noted lake inhabited rainbow trout salmon lake trout basin upstream tributary designated high quality fishery lake designation regulations permitting limit trout day allowed inches long bird species observed vicinity include surf black observed winter greater rare pennsylvania away observed lake july franklin observed near lake snow black legged ducks observed lake
Harveys Lake (Pennsylvania)