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.. .. .,,.w .. .,. - ~. ..w.y.~ ~ • C~ ANY DITCHES FROH THE LOCATION SlfOf/N ON THE MAP, THEN A REVISED MAP 16a MUST BE SUBMITTED AT T1fAT TIME. 2. In order foi the Division to approve the surface water monitoring plan described in the application on pages 780-109aaa and bbb, additional clarification is required. The following stipulation is necessary for permit approval: KERB COAL IS DIRECTED TO SUBMIT A TIMETABLE FOR INITIATING ALL ASPECTS OF THE ffONZTORINC PROGRAM DESCRIBED ON PAGES 780-1 D9aaa AND bbb. !/E REQUIRE TN IS INFORMATION TO BE SUBMITTED BY SEPTEMBER 30, 1981. IN ADDITION KERR COAL IS REOUZRED TO SUBMIT TO THE DIVISION A YEARLY REPORT ON THE PROGRESS OF MONITORING !/NICH INCLUDES ALL DATA COLLECTED FOR THAT YEAR AND A DISCUSSION ON ANY CONCLUSIONS WHICH CAN BE ORA!/N FROM THE DATA. KERR COAL SHOULD WORX CLOSELY WITH THE DIVISION AS THE PROCRAI9 IS DEVELOPED AND MODIFY TO INSURE THAT COMPREHENSIVE BUT EFFICIENT MONITORING WILL TAKE PLACE. 3. The data submitted in Table 10 does not support the conclusion that coal dust does not affect water quality in the swamp adjacent to Che tipple. In order to clarify this issue, the following stipulation is necessary: THE APPLICANT SHOULD P,?afNALYZE AND RESUBMIT THE EKISTINC DATA IN TABLE !0 TO CONSIDER THE EFFECTS OF COAL DUST ON WATER QUALITY IN THE ADJACENT Sf/AF1P,~OR ALTERNATIVELY TIIE APPLICANT SHOULD REDESIGN THE RATER MONITORING PROGRAM AT THE TIPPLE TO COLLECT USABLE DATA. THIS INFORMATION SHOULD BE SUBMITTED TO THE DIVISION NO LATER THAN APRIL 1, 1981. VI. Hydrolooic Balance: Ground I•Jater (2.04.5, 2.04.7, 2.05.3(4), 2.05.6(3), 4.051 The Sudduth coal seam, underburden and overburden units of the open Pit No. 3 are in hydrologic communication with the alluvium of Sudduth Draw. The bottom of open Pit No. 3 will be 120 feet below the level of Sudduth Draw. The pit will be dewatered during mining. These factors will produce an increase in ground water gradient and ground water flow from Sudduth Draw towards the pit. The result will be depletion of flow in Sudduth Draw. This depletion can be minimized by decreas- ing the in_`iltration over the subcrop in Sudduth Draw. Two stock ponds, one upstream and one over the subcrop, exist on Sudduth Draw. These ponds increase the amount and the length of tine [hat surface waters can Infiltrate tl~e alluvium, as is evident from the subirrigated area below the punds. t/ater, which is allowed to infiltrate through the ponds upstream and over the subcrop area, wi12 be lost to beneficial use in the immediate area ,ind dorm stream during and after Wining [he northern section of Pit No. 3. !/ater losses to the pit could be minimized by removing the two ponds upstruam and nvnr rho subcrop area. To resolve this concern, [he follow- ing stipulation is necessary: XERR COAL COMPANY IS REQUIRED TO SUBMIT A PLA J! TO TlfIS DIVISION NO L.1TER THAN SEPTEMBER 30, 2981, FOR ~LlINIMIZING THE DEPLETION OF :/ATER FROM SUDDUTII DRAW CAUSED BY GROUND f/ATER IN FLOf/S DISCHARGING INTO PZT NO. 3. ANY MEASURES W!lICH T!lE DIVISION DETERMINES TO BE NECESSARY TO ALLEVIATE THIS POTENTIAL PROBLEM SHALL B~E IMPLEMENTED PRIOR TO MINING ADJACENT TO SUDUTH DRAW. Water quality information iias been requested by tl~e Division from the sprin4 at the old Sudduth J•fine. These analyses will provide actual water quality from an area disturbed by mining, and will thus allow more accurate predictions to be made of the impacts of the proposed mining. Obtaining samples from the spring may require the excavation of a shallow piC to facilita[r sample collection.