Laserfiche WebLink
3. The system will be started and allowed to run for 2 hours maximum, <br /> partially filling the neutralization tanks. <br /> 4. In this operating arrangement, the effluent pH adjustment system is <br /> bypassed. Therefore, pH adjusting chemicals (NaOH) will be metered <br /> into the neutralization tanks while they are being filled. <br /> 5. The contents of the neutralization tanks will be sampled and <br /> analyzed using manual on-site analytical methods for the following <br /> parameters: <br /> o pH <br /> o Chromium (hexavalent) <br /> o Chromium (total) <br /> o Copper <br /> Samples will also be taken for independent off-site analyses of <br /> these parameters and for detection of arsenic. <br /> 6. After on-site analyses confirm water quality suitable to meet NPDES <br /> discharge permit requirements, the contents of the neutralization <br /> tanks will be discharged by pumping into the effluent force main. <br /> If any of the batches held in the neutralization tanks have not <br /> been adequately treated, the contents will be recycled for <br /> additional treatment. <br /> 7. Steps 3 through 6 will be repeated satisfactorily 3 times. Results <br /> of initial off-site independent laboratory analyses will be used to <br /> confirm successful treatment. These results will be presented to <br /> representatives of the California Department of Health Services and <br /> California Regional Water Quality Control Board before daily <br /> operation is started as defined in the following step. <br /> 8. Daily operation will consist of a combination of continuous and <br /> batch operations. While treating pond water, the system will <br /> 9 <br />