These activities compact the soil, and soil microbes need oxygen to digest wastes. The environmental health specialists are available in the mornings between approximately 8:00 am - 9:30 am before they leave for inspections. Don't add enzyme or yeast additives to the septic tank or lagoon in hopes of improving bacterial action. 4. For example, inside the boundaries of Lincoln County Fire Protection District, the International Residential Code has been in effect since 2006. In areas with limited water resources, particularly during drought periods, water conservation methods, along with unrestricted uses of clear water (for example, flushing toilets with shower warm-up water), are encouraged. For assistance, please contact the Department of Natural Resources at 573-751-3443 or by email at dnrwebcontact@dnr.mo.gov. For each question, mark your risk level in the right-hand column. Perforated pipe (not coiled tubing) is placed in the trench, with the holes pointed upslope toward the perched water table. The greater the distance, the lower the chance of contaminating the water supply. The effluent from an aerobic unit can be discharged into a soil absorption system. No islands, coves or peninsulas in the lagoon are permitted. Some of the publications available from NSFC are: Contact your county health department, MU Extension staff, or private testing laboratories. There are many steps you can take to reduce how much water you use. Where access to a public sewer system is unfeasible or too expensive, proper siting and design of an onsite sewage system is critical to avoid its premature failure. Address: 1101 Riverside Drive PO Box 176 Jefferson City, MO 65102-0176 . When submitting an application, additional details and requirements are identified inside the application. View all agriculture and environment programs, Continuing Education for Health Professions, Living a Healthy Life with Chronic Conditions, Agricultural Business and Policy Extension, Exceed - Regional Economic and Entrepreneurial Development, Mid-America Trade Adjustment Assistance Center, Missouri Small Business Development Centers, Missouri Procurement Technical Assistance Centers, Veterinary Extension and Continuing Education, Missouri Council for Activity and Nutrition, equal opportunity/access/affirmative action/pro-disabled and veteran employer, Top of slope of embankments or cuts of two feet (2'), Other soil absorption system except repair area. The soil must be of a suitable type and must be deep enough to treat wastewater before it reaches groundwater. Therefore, before beginning a septic system project, contact the relevant The department achieves this through education, individual registration, inspections, and a system for reporting and resolving problems. Up and Down arrows will open main level menus and toggle through sub tier links. Lincoln County consists of eight cities, four villages . Responsibilities include: At 30-minute intervals, read the drop in water level to the nearest 1/8-inch increment (1/16-inch increments are recommended). Holding tanks may be used in temporary situations, such as when you are awaiting a new system hookup or are at a summer residence. Knowing the basics about your household system and taking simple precautions can prevent problems. Wastewater treatment is often out-of-sight and out-of-mind until problems occur. Bentonite clay is often effective in sandy and gravelly soils that are lacking enough clay particles and in soils with bright red clays. An OWTS is a system that uses natural processes and mechanical components to collect, treat and disperse wastewater from single dwellings or other buildings or structures. Community Resources. 0000002466 00000 n All design and construction must be in accordance with Missouri Department of Health Rule 19 CSR 20-3.060, Minimum Construction Standards for On-Site Sewage Disposal Systems. 1993 to document.write(new Date().getFullYear()) Curators of the University of Missouri, all rights reserved, DMCA and other copyright information. Descriptions of these systems are beyond the scope of this publication; please see the last page of this guide for additional resources. Table 3Maintaining your residential sewage lagoon system. (These types of systems are discussed further below.). Left and right arrows move across top level links and expand / close menus in sub levels. The system must be designed for the maximum occupancy of your home. Lighter solids in the wastewater like grease, hair and soap float to the top of the tank and form a scum layer. Install cleanouts (Figure 4) every 50 feet (100 feet minimum) along the pipe or wherever the pipe turns corners sharper than 45 degrees. Figure 4.3Cross section of a septic system showing the septic tank and distribution system. Chemical products advertised to "sweeten" or improve your septic system operation cannot replace routine pumping and may even be harmful. Enclose the lagoon with a 4-foot high or taller fence of welded, woven or chain-link 14-gauge wire to keep out livestock and children. An effluent filter at the tank outlet is recommended, because particles carried out of the septic tank can clog the drainfield. When completing the application form, you'll be required to detail the land that will These materials can upset the bacterial action in the tank or lagoon and pollute groundwater. So Now You Own a Septic Tank, WWBRPE20. County or city laws, however, may impose more stringent or additional requirements. Pumping as needed based on the results of periodic inspections will minimize your maintenance costs and maximize the system's longevity. Figure 3Section view of a concrete septic tank shows the typical components of a reinforced concrete septic tank. Although some choices may not correspond exactly to your situation, choose the response that best fits. Regular pumping is the most important action you can take to maintain your system. Metal sewage tanks are not to be used unless specifically allowed by the regulatory agency on a case-by-case basis, and then should be used only if they are covered inside and outside with a bituminous coating. The Missouri Department of Health has jurisdiction over individual wastewater systems that have a designed or actual flow of 3,000 gallons per day or less. Avoid planting water-loving trees and shrubs whose deep roots can damage piping. The sum of the solid layers (sludge plus scum) takes up more than half of the tank capacity, The top of the sludge layer is less than 12 inches below the outlet baffle or tee, or. This will allow the lagoon to receive direct sunlight, let breezes help stir oxygen into the water as they blow across the lagoon, and keep leaves from falling into the water, causing sludge buildup. Your county health department may have resources to test your water, or to provide sample bottles for sending samples to the Missouri Department of Health. The site navigation utilizes arrow, enter, escape, and space bar key commands. COVID-19 Resources. A two-compartment tank or a second tank after the first one can improve sludge and scum removal and help prevent drainfield clogging. Sunlight is essential to promote this algae growth. It provides general guidelines for safe management of household wastewater. Where the row and column intersect, you'll find the estimated number of years between pumpings. This could cause shading, sludge buildup and increased odor levels. Residential Sewage Lagoon Systems: A Homeowner's Guide to Installation and Maintenance. Septic systems should last 15 to 40 years or longer, depending on how appropriately they were designed for a site and how well they are maintained. This new boom is bolstering Lincoln Countys mainstay home builders and also bringing back a few quality builders who were forced out after the crash. Vegetation on the lagoon banks should be mowed often during the growing season to prevent shading and to ensure that breezes can blow across the lagoon water surface to stir in oxygen for proper bacterial action. Lincoln County Government 353 N. Generals Blvd. Freeboard, or the distance from the three-foot operating level to the top of the berms, should be 24 inches (18 inches minimum) to keep surface runoff from entering the lagoon. Table 2 shows the dimensions for various sizes of square and round lagoons. Lincoln County was founded December 18, 1818 and is comprised of a total area of 640 square miles located in eastern Missouri along the Mississippi River. The distribution box should be periodically checked to be sure that the distribution pipes are properly leveled. Do have your septic system inspected annually and tank pumped out every 2 to 5 years by a professional contractor. The OSS Application 2022 packet and Lincoln County licensed installers can be downloaded and printed off (see Forms/Installer lists below), picked up at the Lincoln County Health Department office located at 90 Nicholls, Davenport, WA 99122 or by calling (509) 725-1001. Greywater may contain infectious bacteria and viruses (for example, from soiled diapers or clothing worn by someone with an infectious disease). home| Dig a minimum of four holes at least three holes around the perimeter of the lagoon site and one in the middle of the site. Do take leftover hazardous chemicals to an approved hazardous waste collection center for disposal. Grass is the best drainfield cover. Lagoons may be used where there are no significant limitations related to groundwater and the soils are known to be impermeable. The remaining solids are stored in the tank until they are pumped out. Use Esc key to go back to input search field. Adjust water softener settings to reduce the amount of water needed for backwashing and regeneration, or divert away from wastewater system. If these methods are unsuccessful, or whenever there are less than 12 inches of permeable soil over a restrictive layer, use controlled surface irrigation. A typical septic system consists of a septic tank and drainfield, also known as a soil absorption field, leach field, or tile field (Figure 4.1). You may be able to locate your septic tank yourself. %PDF-1.5 In this stabilization process, bacteria release carbon dioxide that is used by the algae in their growth process. Section 2. Water must be able to percolate through the soil at a reasonable rate. Wastewater carries disease-causing bacteria, viruses and other pathogens. Vertical separation from the lagoon bottom to creviced bedrock must be at least 3 feet, or a compacted clay liner or synthetic liner must be used. Divert roof runoff, footer drains, sump pumps and other surface runoff away from the drainfield. The drain pipe from the septic tank to the lagoon should be watertight, at least 4 inches in diameter, and of Schedule 40 thickness until 2 feet past the overdig of the tank excavation. A typical residential sewage lagoon is pictured in Figure 1. Repair dripping faucets and leaking toilets, avoid long showers and run washing machines and dishwashers only when full. Paints, solvents, acids, drain cleaners, oils and pesticides can pass untreated through your system and contaminate the groundwater. This saturates the voids between soil particles with water. Figure 6Section view of an aerobic lagoon. Haynes- Flossie J . A four-bedroom home would have a minimum tank size of 1,250 gallons, and a five-bedroom home a minimum of 1,500 gallons. 0000002657 00000 n

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