SITE INFORMATION AND CORRESPONDENCE

Home Browse Search

WASTE DISCHARGE REQUIREMENTS -2- PARADISE POINT MARINA SEVEN RESORTS, INC. SAN JOAQUIN COUNTY Constituent me/1 lbs/day BOD` 358 13.5 Total Suspended Solids 204 7.7 ' 5-Day, 20°C biochemical oxygen demand 5. Paradise Point Marina consists of a store/restaurant, boat repair building, office, house boat pumpout, mobile homes, laundry, and storage buildings. The wastewater is initially treated by one 7,200 gallon septic tank and six 1200 gallon septic tanks before entering the final septic tank (800 gallon) which is directly connected to the batch treatment facilities. The batch treatment facilities consist of a 30,000 gallon per day (gpd) capacity batch plant and a 3000 gpd capacity batch plant. The batch treatment systems are used seasonally depending upon the inflow. The 3000 gpd system is operated during the wet season and the 30,000 gpd system during the dry season. The 30,000 gpd batch treatment system consists of a screen, an aeration chamber, a clarifier, a chlorine injection system, a chlorine contact chamber, and multi-media pressure filters as shown on Attachment B, a part of this Order. The 3,000 gpd batch treatment system utilizes a similar process train. Both batch treatment systems are housed inside a building. 6. Paradise Point Marina has consistently discharged formaldehyde at concentrations up to 84 ppb. This exceeds the Department of Health Services State Action Level of 30 ppb. The source of formaldehyde is a chemical toilet deodorant used in house boat holding tank known as Aeroflush. Past laboratory bioassays have shown 0 % survival rate. As of 9 August 1991, the Discharger has stopped using toilet deodorant that contains formaldehyde. Recent laboratory analyses have shown no indication of the presence of formaldehyde. 7. The City of Stockton provides services for the disposal of Paradise Point Marina's sewage sludge. Paradise Point Marina pumps its sewage sludge during the summer months when recreational activities and discharge to the outfall are at their peaks. 8. The U.S. Environmental Protection Agency (EPA) and the Board have classified this discharge as a minor discharge. 9. The Board adopted a Water Quality Control Plan, Second Edition, for the Sacramento- San Joaquin Delta Basin (513) which contains water quality objectives for waters of the Basin. These requirements implement the Basin Plan.