CORRESPONDENCE_1987-1989 - Laserfiche WebLink

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California Regional W A r 2 Nov a er 20, 1989 Quality Control Board large capacity of the basin and the storage space available beneath the discharge pump level for siltation, the automatic sensing pumps did not discharge landfill storm water to South Paddy Creek during the early months of 1989 for sampling. Also, no water ran in South Paddy Creek for a duration to allow samples to be taken. It is expected that the same conditions, unless a long period of steady rainfall would occur, will exist through the end of 1989 . County Public Works staff is monitoring the detention basin to determine when the pumps first begin to operate during this rainy seasons. In the event that the pumps discharge to South Paddy Creek, surface water samples will be taken according to the specifications of Monitoring and Reporting Program Number 87-088. Water from the detention basin was tested for the program surface water paramater constituents April 11, 1989, and is enclosed with this report for background data. Testing was done by California Water Labs. Although no water was running in Paddy creek, it was necessary to remove some of the water from the basin for both basin and pump maintenace purposes. The report labeled "Sump/Inside" was taken at the grated inlet to the pump discharge well; the sample labeled "Sump/Outlet" was taken just downstream from the pump discharge point into Paddy Creek. Ground Water Monitoring: The water monitoring reports for the second and third quarters of 1989 are also enclosed. The sampling was performed by California Water Labs, and contains results for all required quarterly and annual sampling. Additionally, the reports contain the required field water level measurements. The water level depth measurements indicate normal season fluctuations exist for the area and that neither the ground water direction of flow nor gradient have changed appreciably. The quality assurance data indicates that the results are still of good quality. As in the past, the levels of Chloride, Specific Conductance, Total Dissolved Solids and Total Hardness detected in the groundwater sample from MW-4 continue to be at somewhat higher levels than in the other 3 wells sampled. However, the detected levels of these parameters in MW-4 do not exceed drinking water standards imposed under Title 22 and do not indicate any ground water degradation.