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1111111111111111111` <br /> tSCOINCORPORATE# Received <br /> RECEIVED <br /> April 12 , 1999 APR 13 1,999 <br /> APR 16 1999 0 <br /> Owaioa�n90 F/el Division of Minerals$Geology �� o,Ml nerals&Gep/o9Y <br /> Wallace H. Erickson <br /> Reclamation Specialist �GBL//V�/� OFF/ E <br /> Division of Minerals & Geology <br /> 484 Turner Dr, Bldg F, Suite 101 rite. C ELF C <br /> Durango, Colorado 81301 S��•c ��`�SC� p Y <br /> RE: Howardsville Mill Y <br /> B~ LZ <br /> 'I Permit No. M-84-049 �oyZ <br /> Water Sampling ' r . rZ-� <br /> a <br /> Dear Wally, �a— <br /> Thursday afternoon Bill Jones of Root & Norton and I got <br /> together and carefully reviewed all of the data from the last five <br /> quarters of water sampling at the Howardsville Mill and came up <br /> with the following proposal for future sampling. <br /> I have only stated generally why we feel parameters should be <br /> deleted to save on space here . We can go into specifics should <br /> there be disagreement on any. <br /> Ground and surface water should be analyzed for the following <br /> parameters : pH; Electrical Conductivity; Total Dissolved Solids ; <br /> Hardness ; Cyanide at stations G2 , G3 , G4 , S5 & S6 ; Sulfates ; <br /> Calcium; Magnesium; Sodium; Aluminium; Cadmium; Chromium at <br /> sites G3 and S5; Copper; Iron; Lead; Manganese; Mercury at <br /> site S5 ; Silver at sites G4 and S5 and Zinc . <br /> Analysis from the five quarters of sampling showed no contact <br /> or very insignificant contact for the following parameters and <br /> they should be deleted from future sampling, also, most of the <br /> following parameters are not an issue with aquatic life: Ammonia; <br /> Chloride; Nitrate; Nitrite; Sulfide ; Potassium; Arsenic ; <br /> Barium; Boron; Nickel and Selenium. Total Suspended Solids is <br /> a burdensome test that really reveals nothing as there is no pond <br /> discharge . Total Alkalinity tells us nothing as we have already <br /> quantified the Calcium and Magnesium. <br /> All sampling sites , ground and surface shall remain as they <br /> are and they shall be sampled in late spring during high water <br /> (June) and fall when the flow is down (September) . <br /> TUSCO, INC. <br /> 9�id 4Z <br /> Cow t Appo ' e Receive <br /> JS: as <br /> 1110 Ward Rd, Suite 0-1 101-423-8146 Arvada, Colorado 80002 <br />