Laserfiche WebLink
Hydrologic Monitoring Plan 3 June 13, 1997 <br /> TR-05, Environmental Protection Plan <br /> Howardsville Mill, Permit No. M-84-049 <br /> Surface Water Monitoring Locations <br /> S1 Origin of the Upland Diversion Ditch for Tailings Ponds, located along SE <br /> embankment of Upper Tailings Pond. S1 is location of up gradient surface <br /> water and intercepted alluvial flow. <br /> S2 Outlet of Upland Diversion Ditch for Tailings Ponds, prior to mixing with <br /> Animas River flow. Portions of the Upland Diversion Ditch has been <br /> excavated from tailings, contributions to Animas River need to be <br /> characterized. <br /> S3 Animas River, upstream from outlet of Upland Diversion Ditch. <br /> S4 Optional Animas River mid-site monitoring location, downstream from <br /> permitted tailings ponds but upstream from contributions from Pre-law <br /> Tailings Pond. S4 is a recommendation to help characterize contributions <br /> made within permit area, but not from permitted facilities. DMG does not <br /> require that S4 be included in hydrologic monitoring plan. Pursuant to Mr. <br /> Sandell's request, S4 has been deleted. <br /> S5 Surface drainage from Pre-law Tailings Pond and tailings relocation project. <br /> S5 data will characterize contributions from pre-law tailings area, prior to <br /> mixing with Animas River flow. <br /> S6 Animas River, downstream of all contributions from Howardsville Mill <br /> affected area but upstream of confluence with Cunningham Creek and <br /> Hematite Creek, and not to include contributions from Independence Mine. <br /> Surface water samples will be analyzed for the following parameters: <br /> pH Nitrate Chromium <br /> Total Suspended Solids Nitrite Iron <br /> Total Dissolved Solids Chloride Lead <br /> Electrical Conductivity WAD Cyanide Manganese <br /> Hardness Mercury <br /> Alkalinity Aluminum Nickel <br /> Major cations Arsenic Selenium <br /> Major anions Barium Silver <br /> SO, Boron Sodium <br /> Ammonia Cadmium Zinc <br /> Metals must be analyzed as filtered and dissolved. Pursuant to Mr. Sandell's request, <br />