_GENERAL DOCUMENTS - C1981017 (283)

Home Browse Search

-LO- Mid-Continent should not significantly aff!.ct th,� quality TO r.i`, )f water within and adjacent to the permit area (see Section VII of this document) . Therefore, the Coal Basin mines should not adversely affect downstream water users. Surface !Dater Monitoring [Aid-Continent has been collecti,l3 surface water sarn;lles from up to ten monitoring points rnl a monthly basis sinca 1977 and Frrnn three paints since 1974. The locations of these sampling points can he found on ?lap IV-C-1 . Now that a water (1,1ality data base has been established, the ,p applicant proposes to continue to collect samples at three poir►ts /�- i;l�r►rr-rs ;, 5, and 20, as indicated on Exhibit IV-C-l ) . The Division E� at Lil' i►, • iI I ! I� : l i1 :11 � :� � ,i ''� � � 1': Creek above the confluence with Coal Cree<; 2) Point the confluence with Coal Creek, and 3) Point 29, !).'104 3nar U, n Creek and below the d i st.lrb i ar�:,i. Tn '�..ir Cr,.ek non i nri l,l s i control point since trv!rA is no diS;urbance within the Bear Creek drainage. The 0,itch Cri,.!k sa.riplirlg Site serves to monitor the effects fron 'tines l , L, 3, and 4. The Coal Creak sampling site serves to monitor the overall effects of the mining operation and the effects Iv Q associated with Mine No. 5 and the preparations plant area. Iv In addition to the three sampling sites on the stream% in Coal Basin, the applicant samples discharge from each of the mines plus discharge from the sediment ponds. Them are 19 discharge points which are sampled i'i compliance with the National Pollutant Discharge Elimination System (NPUES) effluent requirements. The list of sampling locations is presented on page, 13 110 lq of (;:,►a;)t-!r IV of the application. The Division has reviewed the proposed surface water monitoring program. Every effort was made to tailor the requirements of the monitoring towards the probable hydrologic consequences. At this time, quarterly water quality monitoring is necessary to verify the statement of probable hydrologic consequences (see Section VII of this document) . The applicant has ayrt2ed to ;nonitor surface water, mine discharges, and sediment pond discharges for the following constituents: r 11aynesi urn Electrical Conductivity Sodium Temperature Bicarbonate and Carbonate or Total Total Suspended Solids Alkalinity Tonal Dissolved Souris Sulfate Sodium Adsorption Ratio iron Calcium Manganese N'iC!L?1 Tne applicant is currently ;nonitorina surface water flows at Point 2`� �n Coal Creek. In order to aifferentiate the overall ef�ects of '•tines 1 , 2, 3, and 4 fro;n those of 'dine 3 and :,ie preparation plant area, and Facilitate a :pass oalance analysis of substances added to the streams, the appl icint will -ior,i for t�le f low of 3ear Cree!c and Dutch CreeK.