COMPLIANCE INFO_1993-2008 - Laserfiche WebLink

Home Browse Search

with Boring 2-West, which is essentially adjacent to the wastewater ponds. They indicate levels of TDS above the Maximum Contaminant Level (MCL) of 1000 mg/1 in all three wells, and in Boring 2-West. Regarding nitrate and TKN, only one domestic well sample at 705 West Briggs Road exhibited a high nitrate level of 47 ppm. This high concentration of nitrate can probably be attributed to nitrogen applications in small scale agricultural and horticultural production in the immediate area. In addition, due to the age of the dwellings, many may have redwood septic tanks and along with the high water table, create an environment conducive to nitrate contamination. The following is a tabulation of the groundwater analytical results: Parameter 10235 Holmes Rd. On-Site Dom.Well 705 W.Briggs Rd. Boring 2-West Total Kjeldahl N. <l.l mg/1 <l.l mg/1 <l.l mg/1 7.0 mg/1 Total Diss.Solids 1100 mg/1 2300 mg/1 2500 mg/1 3200 mg/1 Nitrate <0.5 mg/1 3.1 mg/1 47 mg/1 6.0 mg/1 Two of the above-referenced domestic wells are drawing water from aquifer(s) as noted on the only well logs for this area found at the San Joaquin County Environmental Health Department. One well is located one-half mile west of the subject ranch and the other log is for the on-site domestic well. Copies of these logs can be found in the Appendix and indicate the well west of the ranch is perforated from 65 to 85 feet below grade where there is a blue, coarse sand. The on-site well is perforated from 90 to 210 feet where there are intermittent sand strata. CONCLUSIONS The most successful poultry ponds in most of the United States are facultative/anaerobic ponds (4). These types of ponds have an anaerobic lower zone, a facultative middle zone and a slightly aerobic upper zone. Due to the high organic loading of the subject ponds and since they are comparatively deep (between eight and twelve feet), the ponds can be considered primarily anaerobic. The subject ponds are presently a reddish-purple color. This color indicates the presence of sulfur-fixing bacteria which use sulfur instead of oxygen in metabolic processes, thereby confirming the anaerobic state of the ponds. 4 .J Q.ality Control Inspection