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18. Solids, sludges, or other pollutants removed or resulting from the wastewater <br /> storage facilities shall be contained and disposed of in such a manner as to <br /> prevent any contamination of the surface or groundwater of the State. <br /> 19. The application rates shall not exceed . 1 gallon/sq. ft./day <br /> 20. Adequate records shall be maintained for, but not limited to, the following: <br /> a. Individual dosing pump operation Weekly <br /> b. Individual field rotation Weekly <br /> c. High water alarms Weekly <br /> d. Residual pressure on highest and lowest lateral on each field Monthly <br /> e. Residual Pressure on all laterals Semi-Annually <br /> This information shall be maintained on a monthly basis and submitted to the <br /> Raleigh Regional Office on or before th 10th of the following month. <br /> 21. 100% replacement area shall• remain undisturbed for the life of the subdivision <br /> (until needed for replacement) or until an alternative means of disposal is in <br /> place and operational. <br /> 22. Prior to beginning waste disposal operations at the Phase I nitrification field <br /> site, three (3) monitor wells, one (1) upgradient and two (2) downgradient shall <br /> be installed to monitor groundwater quality. Prior to monitor disposal <br /> operations at the Phase II nitrification field sites two (2) monitor wells, one <br /> (1) gradient and one (1) downgradient, must be installed at the western field <br /> (the disposal field between Lots 49 and 50) . The location and construction <br /> details for these wells must be approved by the Raleigh Regional Office, from <br /> which a well construction permit must be obtained. <br /> 23. The monitor wells must be sampled initially after construction (and prior to <br /> waste disposal operations) and thereafter every March, July, and November for the <br /> following parameters: <br /> NO3 pH <br /> Total Ammonia TOC <br /> TDS Chloride <br /> Water Levels Total Coliforms <br /> TOX (In November only) <br /> The measurement of water level must be made prior to sampling for the remaining <br /> parameters. <br /> The analytical methods used for TOX must be capable of detecting the total of all <br /> halogenated organic compounds present at a concentration of 5.0 parts per billion <br /> (ppb) or greater. In the event that a TOX concentration of 5.0 ppb or greater is <br /> detected, any individual halogenated organic compound (s) present at a <br /> concentration at or above their method detection limit (MDL) must be identified, <br /> quantified and reported with the sampling results. <br /> The results of the sampling and analysis shall be sent to the N.C. Division of <br /> Environmental Management on Form GW-59 (Compliance Monitoring Report Form) every <br /> April, August and December. <br /> 24. Permittee, at least six (6) months prior to the expiration of this permit, <br />