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Page three <br />Letter to Ms. Carol Pahlke <br />and Mr. Tom Pike <br />Re: Kerr North Expansion <br />April 29, 1980 <br />II. HYDROLOGY <br />A. Surface Water Quality Monitoring: Surface water <br />quality will be monitored at the Kerr mine site on a weekly <br />basis during periods of measurable flow for those parameters <br />listed on the attached sheet labled "Surface Water Analysis <br />List". Monitoring will occur at those sites delineated on <br />the accompanying map entitled "Kerr Coal Company 1980 Hydro- <br />logic Monitoring Sites". In addition, surface water quality <br />will be regularly monitored during and after the conduct of <br />surface mining activities at the outlet of those sedimenta- <br />tion ponds delineated on the attached map entitled "Kerr <br />Coal Company Drainage and Sediment Control Plan". At the <br />Kerr tipple site, surface water quality will be monitored at <br />those locations indicated on the accompanying map entitled <br />"Kerr Tipple Drainage Control Plan". Sampling at the Kerr <br />tipple will be done at these monitoring sites on a weekly <br />basis and will address the full suite of parameters listed <br />in the attached Surface Water Quality Analysis List. <br />B. Ground Water Quality Monitoring: Ground water <br />• quality at the mine site will be monitored at the ground <br />water monitoring wells indicated on the "Kerr Coal Company <br />1980 Hydrologic Monitoring Sites" map. This monitoring will <br />occur on a monthly basis for four parameters: pH, electrical <br />conductivity, temperature and water level. On a quarterly <br />basis, water quality at the indicated ground water monitor- <br />ing sites at the mine will be monitored for the full suite <br />of parameters listed on the attached sheet entitled "Ground <br />Water Analysis List". At the Kerr tipple site, ground water <br />quality will be monitored at the sites indicated on the <br />"Kerr Tipple Drainage Control Plan" map on a monthly basis <br />for the entire suite of parameters listed in the attached <br />"Ground water Analysis List". <br />C. Air Quality Monitoring: Air quality will be moni- <br />tored at the Kerr mine site at those points delineated on <br />the "Kerr Coal Company 1980 Hydrologic Monitoring Sites" <br />map. <br />D. Overburden, Leachate and Coal Analysis: KCC will <br />analyze overburden samples taken from drill holes in the <br />permit area distributed along seven transects with an average <br />• <br />