Laserfiche WebLink
Mr. Karl Koehler -2- March 19, 1993 <br />Cyprus Orchard Valley Corp. <br />2. The elevation for spring 30 is shown incorrectly in Table 1. It should be 7840. <br />3. SW-09 is labeled as being in both the East Roatcap Creek and West Roatcap <br />Creek. It is understood that this is an overland diversion. Please clarify the <br />nature of this station. <br />4. Well MW01 is shown in Table 1 as having an elevation of 6716.15, yet this is <br />supposedly at the coal loadout. The correct elevation is most likely 5716.15. <br />Please correct as appropriate. <br />5. Spring 31 is in West Roatcap watershed rather than East Roatcap as currently <br />identified. <br />6. The following sites or wells could not be located on Maps 4-1, 8-1, or 8-3: <br />UERC, LERC, MWO1, MW02, MW03, OVWM, DH700, GR777, 001, 002, 003, <br />004, 005, and 006. Please add these sites to the appropriate maps. <br />Monitoring Frequency <br />1. Overall, the required monitoring frequency was met at most sites with a few <br />insignificant omissions. Please insure that when a site is visited but is not <br />discharging or dry that a notation is made in the monitoring record. This includes <br />NPDES sites as well. <br />Water Quality <br />1 . Overall, water quality ranges from good to very good. Although no measurable <br />impacts can be implied or identified, the Division is requesting your comments <br />concerning the following phenomena: <br />al The field EC readings (4) from June to October of 1991 at site SW-10 are <br />four times larger than the historical average for the same site. Other data <br />from sampling indicate the potential for error in the field reading. Please <br />comment on this discrepancy. <br />b) Why does spring 25 show no flow or sporadic flow yet have a complete <br />record of EC readings? Also, this spring is 5 to 10 times higher in EC than <br />most other springs and is above an area impacted by subsidence. Please <br />provide comments on this phenomenon. <br />c) An increasing conductivity from upstream to downstream in East Roatcap <br />Creek was noted by COVCC in the AHR narrative. Please provide your <br />comments as to why this is occurring. <br />