How much space is needed for a mound septic system

How much space is needed for a mound septic system

The disadvantage of the drip distribution system is that it requires a large dose tank after the septic tank to accommodate the timed dose delivery of wastewater to the drip Jul 5, 2015 · Aerobic treatment system: These systems use an aerobic process to treat the effluent, typically using an multi-chamber concrete tank placed underground. All systems must be built according to the OBC regardless of how the residence will be used such as seasonal cottage use or low occupancy numbers. A blocked system can stem from various issues, including blocked lateral lines, heavy biomat layers, system breaks, or large debris. Effluent filters are also required. 33 m2 trench bottom area needed. DESCRIPTION The mound system was originally developed in North Dakota in the late 1940s and called the NODAK disposal system. But if the soil has poor percolation—it’s A mound system septic system is a sewage system that is built on a mound of earth or gravel. Mound Septic System. The most complex systems contain four chambers to collect, aerate, purify, and pump the effluent. The Holding Tank system is simply as it sounds. The most common type of septic system is the conventional septic system. 00 (a stub-out inspection is usually required when a mound system is required for a house. (vi) The required drainfield bed bottom area shall be calculated from the application rates shown in Table 5. Since one cubic foot can contain 7. 2 How Sand Mound Systems Differ from Regular Septic Systems; 2. rules of thumb used to set the size of a conventional septic drainfield. The maximum soil cover over your field should be 36-inches tops. In this system, small distribution pipes are set into a layer of gravel that sits over a layer of sand. The last style to learn about is a mound system. The USDA will recommend 2-5 feet overall, so the 36 inches would fall between that range. Make sure both tanks are tightly sealed against groundwater seepage before installation. We would love to visit your property for a site and soil evaluation to help you decide on the Best Sewage Treatment System for your home. Solids settle to the bottom, and liquids make their way over the partial wall into the smaller second chamber. The tank contains an alarm system to alert the owner when the tank is full. The exception is the piece after the pump. The frequency of pumping the septic tank depends on the tank size, number of people in the household, habits of water use as well as the amount of solids accumulated in the tank. Aug 5, 2023 · Comparison of functionality. 00, (for a total fee of $390. We understand that when you are looking for information United States Environmental Protection Agency Office of Water Washington, D. 00). Starting with the rejuvenator can potentially clear up the backup, but if it doesn’t, a professional inspection will be needed. Less space is required. The potential cost of a mound septic system can vary widely from $9,000 all the way up to $25,000, according to the website Eco-Nomic. EPA 832-F 99-074 September 1999. any mound system. What is the cost of a mound system? According to one mounds designer/installer, average construction costs are approximately $9,000 for a mound system serving a three-bedroom single home (150 gpd/bedroom) at a flow rate of about 450 gpd. A mound has 1 to 2 feet of treatment media. 3. mound system is a technology used for treating and disposing of domestic wastewater in areas unsuited for conven-tional septic tank soil absorption systems. Gravel-filled absorption beds are constructed in the sand fill, and effluent from a United States Environmental Protection Agency Office of Water Washington, D. my current septic system is in good working condition On 2017-11-30 by Jody What is the reason for the minimum distance from a structure to a septic tank? 3. It relies upon an elevated sand mound for the drain field rather than excavating into the soil. Apr 19, 2024 · The sand-lined filter bed is one of the most popular choices. Mound Septic System Design. And because they’ll need to design and potentially oversee your system’s design, expect to pay $500 to $1,000 or 5% to 15% of the project’s design budget. This system All septic systems that are within a single lot and rated to accept a total daily flow rate of <10,000 L must comply with the Ontario Building Code (OBC). CALL NOW FOR SERVICE: 1 (855) 925-0760. The whole area is covered completely with topsoil to form a mound. Design guide for the construction of mound type septic systems - septic mounds. Many systems fail sooner than 20 years, and many last well beyond 25 years, the AVERAGE is 20 to 25 years. Plastic Chamber Leach Field. Homeowners spend another $75 for a distribution box, $150 for pipes, and $275 for a septic tank filter. They can be used when there's only 1 or 2 feet of native suitable soil. The amount of space needed to install a Mound Septic System is relatively small, so these systems are great for properties with minimal space; Because less space is needed to install a Mound Septic System, it is usually easier to meet building codes and health department regulations A two percent slope is required for the house sewer to the septic tank, while a one percent slope is sufficient for a pipe carrying septic tank effluent to the pump chamber. Jun 9, 2023 · The first thing we’ve got to figure out is how much space we have to work with. Waste flows from the house into the larger chamber. (v) Using pressure distribution with a center manifold, a drainfield bed system shall have maximum dimensions of 205 feet by 20 feet. 3 Drip Distribution Septic System. On 2020-07-19 - by (mod) - leach field distance to cemetery. Make sure the system fits without getting in the way of enjoying your space. The Cost of Burying a Tank Would Be Prohibitive. If the septic tank is not cleaned regularly, solids will overflow from the tank and into the leaching system. May 29, 2023 · Each part of a sand mound system has a special role in treating and disposing of wastewater. This type of septic system disposes the waste through sand, and the ground will absorb the waste. Limiting layers are bedrock, sand, and gravel, dense and compacted layers, and water tables. Alternative septic systems are a little different than the standard septic systems. Unlike other septic systems that have a mounded or built-up drain field, the drip laterals are inserted into the topsoil, usually between 6 and 12 inches deep. • mound system does not have a direct A discharge to a ditch, stream, or other body . 33 ÷ 0. 2 Chamber Septic System. Proper water usage and conservation are crucial for the health of your mound septic system. It rests on or just above the ground to keep the pollution of the freshwater table from occurring. So, does a septic tank need electricity? No, most septic tanks do not need Feb 17, 2022 · Thankfully, there are plenty of alternatives to choose from if you’re facing this septic conundrum. This can come as a big shock to homeowners planning to remodel or sell () FEE- The application andsoil test fee is $255. Decentralized Systems Technology Fact Sheet Mound Systems. Some alternative systems that are more complex may require more Jul 1, 2022 · Limited space: The actual mound system doesn’t take up much space. According to the Natural Resources and Environmental Protection Act, only an authorized person holding a valid septage waste servicing license and a septage waste vehicle license can engage in servicing, constructing, or maintaining a sewage system. This system is similar to the conventional pump system. 1 and 1. An elevated mound system is built above the native soil to achieve the required separation distance between the infiltrative surface and the limiting soil condition of the site. How much does a Mound Septic System cost. Multiply the amount of water in the cup by 144 (the number of minutes in 24 hours, divided by 10). You will need a bigger space on your property for the drainfield. Around Your Septic System U. Septic mound systems are used where local soils are not suitable for effluent disposal. 5. 2. Suitable for any climate and soil type. In this case, you will use a mound of sand, gravel, and dirt instead of a traditional drain field. If you decide to go with a lift station, the inspection is not These systems require 36 inches of suitable soil underneath the system, rather than the 6 inches required for the standard mound system. Total length of trenches = 43. Here is a list of such alternatives to septic systems: Pressurized Dosing. Adding a new mound septic system may very well be May 14, 2024 · When you need an engineered septic system, it’s not a plumber that’ll design your new septic system but a civil engineer or soil scientist. A drip system will require electricity to power the pump in the pump tank Sep 14, 2022 · Here are the ins and outs of septic system maintenance to protect your health, your budget, and Pennsylvania’s waters. Residential septic tank sizing tables are provided. Septic tank volume for a conventional tank and onsite effluent disposal system (such as a drainfield) is estimated at a minimum of 1000 gallons or 1. This works by building up a specialized mound with gravel and sand to allow more distance between the drain lines and bedrock or groundwater. The Dosing tank has a pump in it that is used to pump the liquid effluent to the absorption field. A new leach field generally costs between $2,000 and $20,000 (for an average price of $6,000 ). Apr 2, 2024 · 3. The average cost of a conventional septic system would be anywhere between $3,100 and $15,500, while for a mound septic system you will have to pay Budget-Friendly Alternative Septic Systems. Sand mound systems on slowly permeable soils, with rates of 60-120 minutes per inch, are currently Oct 2, 2023 · You’ll pay more if you need a larger field or if you have a more advanced septic system (such as a mound system). 5 = 1620 gallons of septic tank capacity - this is probably nominally a "1500-gallon septic tank". Some soil types are unsu itable for conventional A drip septic system consists of a septic tank, pump tank, supply line, and drip laterals or drip tubing. 1 Conventional Septic System. Feb 23, 2024 · Also, a septic tank can leak, which would cause similar problems. A mound system is a type of absorption field, so are trenches, beds, trench chambers, and drip irrigation. Who Has Oversight of Your Septic System? In Pennsylvania, local municipalities (for example, boroughs and townships) are responsible for making sure that private septic systems of 10,000 gallons or less meet DEP requirements. Most of mound septic systems consist of three main parts: Septic tank; Pump and pump chamber; Mound with the replacement area; The Septic tank is usually designed to have two chambers, made of concrete or polyethylene. Smell: Mound systems exist to close the surface, making it easier for unpleasant smells to escape. S. In the sketch shown here, effluent is discharged to the septic mound by a pumping chamber. 1 Estimating Daily Wastewater Flow Rates8. However, you do need to save room for wastewater drainage. Mar 27, 2024 · It’s digging time. 6 = 72. The functionality of septic systems varies based on their design and components. A mound septic system is an alternative to other septic tank systems, as it rests near the top of the ground and does not use a container for the waste. 2 Following the Rules; 4 Septic Tank; 5 Dosing or Pump Chamber; 6 A sand mound system is an on-site sewage disposal system that is elevated above the natural soil surface in a suitable sand fill material ( Figures 1. 2 Can I install a mound septic system myself? Mounds and septic systems designed and installed prior to the year 2000 AVERAGE 20 to 25 years of useful life prior to failing and needing to be replaced. 5 x average total daily wastewater flow. The major alternatives to septic tanks include mound, aerobic septic, and cesspool systems, as well as sander filter, constructed wetlands, and drip irrigation. 1 Waste Treatment and Saving the Environment; 3. Understanding how these key components function gives you a better idea of how the system works. Mound systems are designed to maximize the absorption capacity of existing soil (see Figure 1). A sand mound can help deal with several of the issues a septic system may face. The mound system is most popular for soil that is too shallow over bedrock or for a sewage. The price of the sand and electric pump also affects the total cost of this system. dosing chamber contains a pump or siphon, which transfers effluent, under pressure, to a distribution network of small diameter pipes with small perforations which distributes the effluent uniformly over the absorption area of the mound. This is the total amount of clean water traveling to your septic system each day from that little leak. Septic system types, how they function and which ones are best, is probably not your first choice when it comes to reading material. Conventional septic systems provide reliable treatment and absorption of wastewater and are suitable for a wide range of sites. Clay soils should soak for at least 12 hours to fully saturate. It is a tank, or series of tanks, that contains all the water used by the structure. 1 What is a Sand Mound Septic System? 2. The Septic Tank. If, for example, you have a cabin far out in the forest, digging a hole for a septic tank might not be feasible. May require a stub-out inspection with a fee of $60. Presently in Maryland, sand mound systems that meet conventional on-site sewage disposal criteria are designed to overcome high water tables or shallow soils over fractured bedrock and are approved for routine use. Minimum 6 inches of cover over the distribution pipe. The liquid is then pumped from the tank to perforated plastic pipes buried in a mound of sand built on the soil surface. Because conventional systems are the most common type of septic system for single-family homes, they are relatively easy to repair when needed. Within the sand fill is a gravel-filled or gravelless chamber bed with a network of small diameter pipes. Overall, depending on the design and local cost for materials, installation of a mound system can cost more than $10,000 more than a traditional septic system. The wastewater must move into unsaturated The length of a leach field depends on the size of the septic system, the soil's percolation rate, and the amount of wastewater generated. So, grab a tape measure and size up your lot. Aug 28, 2015 · Custom Septic Inc. The first will be a standard septic tank buried at a depth of 10 to 16 inches and located a minimum of 10 feet from the foundation of the house. InspectAPedia tolerates no conflicts of interest. sand mound septic system. The main goal is to preserve and utilize the natural soil conditions at the site. This is usually possible from an engineering standpoint, but messy and expensive. Sizing a Septic Drain Field, Calculation Example. Jun 6, 2016 · Since the perc test is meant to simulate the actual conditions in a working septic system, the soil is then “pre-soaked” for several hours to saturate the soil. Often high water or clay, bedrock or other restrictive challenges mean that the septic system’s drain field needs to have more distance from those restrictions. 4. Additionally, the system includes a dosing chamber that collects the wastewater that leaves the septic tank. Here are some tips: Efficient fixtures and appliances: Install low-flow toilets, faucets, and showerheads to reduce water use. These systems require the use of a pump to get effluent up to the higher levels of the drain field. Mound location, size, shape, construction procedures and maintenance of the mound all interact in deter-mining how well the system will function. It is a factor, too, if you regularly host parties or frequent extended family visits at home. On 2020-07-21 by Carol, Yikes--not sure we have that much space. The disadvantage of the drip distribution system is that it requires a large dose tank after the septic tank to accommodate the timed dose delivery of wastewater to the drip Feb 25, 2022 · Conventional septic systems are much cheaper than mound septic systems because they are not that sophisticated. For the depth of your drain field trench, a good rule of thumb is that it should be somewhere in the range of 18 to 30 inches. Fill the bathtub with only as much water as you need. Alternative systems, such as drip distribution, ATUs, mound systems, or sand filters, offer enhanced The volume in cubic feet of a tank of these tank dimensions is 4. Feb 10, 2024 · 2 Getting to Know Sand Mound Septic Systems. 481 gallons, which we round up to 7. However, the cost of mound systems will vary depending on the contractor, the A septic mound is an engineered system involving fill to create a soil absorption system for the disposal of septic effluent. Mound lo-cation, size, shape, construction proce-dures, and maintenance of the mound pressing your preferences, the more Dec 5, 2021 · What about replacing the mound in the same location as the existing mound. Ohio has large areas of soils that are too shallow for typical septic tank-leach field systems, which require 36 inches of suitable soil before hitting a limiting layer. A sand mound is constructed on the septic system area to pump wastewater 5: Mound System. 2 ). Jan 16, 2022 · The mound is constructed of layers of sand and gravel with the perforated drainfield pipes running through it. 2 m . Mound System – A mound system is mounted above ground due to a high water table on the property. Feb 8, 2022 · The biggest expenses associated with a mound system are the earthwork, and additional materials and equipment needed for the construction of the mound itself. Daily Design Flow for a 3 bedroom home of 1,300L/day, HLR of 30 L/day/m2 for a Loamy Sand (high sand content with small % of clay) and 0. May 21, 2021 · Mound systems work well as alternatives to septic tanks when the soil around your home or building is too dense or too shallow or when the water table is too high. • If care is taken, construction damage can be minimized since there is little excava-tion required in the mound area. The amount of space needed for installation is usually smaller for mound septic systems, so they will work well even on smaller lots in some areas This system is usually much less expensive than having a unique and custom engineered system developed Mar 18, 2023 · 5. What causes failure of a mound or septic system. 6 m wide trenches. Dec 17, 2013 · In your article, you stated that a tap leaking just one drop per second wastes about 10,000 litres of water per year and a silent leaking toilet can waste up to 20 times that amount. Minimal risk of construction damage since no excavation is required. The average 3-4 bedroom house is rated at 2000L. Schematic of the Wisconsin mound system showing septic tank, dosing and mound. If you are living in a home with a septic system you may be wondering if there is anything you need to know about the operation of your septic tank when there is no electrical power available, like in the case of a power outage. A mound septic system has a high cost compared to a conventional septic system because it requires a more complex design. . Basically, you need to excavate and remove the entire drain field, plus some of the surrounding soil. Some of the benefits of a mound system septic system include: –. On 2013-03-23 by (mod) - Zanne, YOu need some help from a septic design engineer familiar with both local codes AND the specific soil perc rate and properties of your drainfield. Pros and Cons Mar 8, 2023 · A mound septic system comprises 3 main components namely; the septic tank, the pump chamber with the pump installed as well as the mound with its replacement areas. About 53 percent of soils in Ohio have limiting layers The condition of the soil is a biggie. Mar 28, 2024 · A conventional septic system needs a large space to operate. Generally, mound systems are more expensive than conventional systems, with costs ranging from $10,000 to $20,000 or more. In that case, an above-ground septic tank would be a better, more affordable option. Here is a table containing the brief pros and cons of mound septic system: Pros. Fig. The mound septic system has many good points and bad points. With compact designs, options like Aerobic Treatment Systems or Mound Septic Systems might just be the ticket for small spaces. There are two chambers in the tank, separated by a partial wall. 2 SEPTIC TANKS: Dual compartment tanks are recommended for all systems. (CSI) at 763-218-4769. Spreading out water use: Spread out laundry loads and avoid running multiple water-intensive appliances simultaneously. Jul 31, 2022 · Question: Massachusetts septic system clearance distances (Feb 18, 2016) Anon said: HOw far does a house have to be from septic in Massachusetts. Nov 23, 2018 · The main advantage of the drip distribution system is that no large mound of soil is needed as the drip laterals are inserted into the top 6 to 12 inches of soil. To further optimize the performance and lifespan of your drainfield, be sure to have your septic tank pumped regularly. 5 Mound Septic Systems. Keep adding water to maintain about 12 inches of water in the hole for at least 4 hours. The holding tank will be located a short distance away from the septic tank but will be buried approximately 12 inches deeper. Variables that affect cost include the conditions of the land where the mound septic will be placed, the size of the home, including number of bedrooms, and the choice between a plastic and cement septic tank, with plastic being more expensive. 1300L/D/m2 ÷ 30L/D/m2 = 43. i. It consists of a septic tank and a leach field, as described above. Solids settle at the bottom and are partially decomposed by bacteria to form sludge. The average cost of a mound septic tank system is anywhere from $9000 to $20,100. Call now for a Free Estimate from Custom Septic, Inc. How far away from the Private Sewage (Septic) system, is required for Inground Swimming Pool. . They are above-ground systems that are covered in mound systems (Figure 4) which are elevated systems used in areas with marginal soil types and high water tables. Cons. This document uses the New York State wastewater treatment standard for individual household septic systems to provide an example of state regulated design and installation of mound type septic system designs. Some soil types are unsu itable for conventional 6 days ago · Along with natural microbes, these layers filter out contaminants to protect the environment. A mound system is required if three feet of separation cannot be achieved with an inground trench sys-tem. But yes, that's the biggest concern. So, thanks. Call Us Now: (844) 371-5697 May 26, 2020 · ===>These are 10 things that you should know about your septic system. Water Efficiently! Install high-efficiency showerheads. More expensive than a traditional one. Carol Thank you for an interesting question. This will result in clogged leach lines, contaminated soil, and ultimately leach failure. 5 x 8 x 6 = 216 cubic feet. If the wastewater takes too long to percolate through the soil, it could pool on the surface. • Reshape or fill the ground surface Feb 11, 2024 · Key pointsContents1 Key points2 Importance of Correct Sizing3 Understanding What Affects Septic Tank Size4 Choosing the Right Septic Tank Size5 Household Size and Number of Bedrooms6 Average Daily Wastewater Generation7 Understanding How Soil Affects Septic Systems8 Local Regulations and Environmental Considerations8. Aug 12, 2021 · See NEIGHBORING SEPTIC SYSTEM PROBLEMS. Environmental Protection Agency TM EPA-832-F-14-009 • September 2014 Follow Septic Sam’s landscaping do’s and don’ts: Don’t: • Plant a vegetable garden on or near the drainfield. 3 When to Use Sand Mound Systems; 3 Understanding How Sand Mound Systems Work. For example, a mound system for a three-bedroom home, with a flow rate of 450 gallons per day (using tables based on number of bedrooms), a soil percolation rate of 20 minutes per inch, and a 2 percent slope would need a mound with a “footprint” approximately 45 feet wide and 70 feet long. The total price is also influenced by the price of the sand and the electric pump. It divides the solid and liquid parts of the wastewater. In a mound system, the waste gets pumped to a constructed mound. The Septic Tank is all about separation. Effluent from the septic tank enters the dosing tank and at a specific height and turns on the pump by lifting the pump “on”float switch. How To Take Care of Your May 1, 2020 · If a mound system is proposed to be used on a site whose conditions require a technology meeting Treatment Level B or C, a minimum unsaturated vertical flow path of 3 feet is required. This depth may consist of the natural soil and mound filter media, but there must always be a minimum of 12 inches of filter media. Mound System. And it must be that the Dry Well Septic System must be 12 to 36 inches below the ground. The first chamber acts like a smaller version of a traditional septic tank. Septic tanks are made from concrete or heavyweight plastic and typically have a capacity of 1000 to 2000 gallons. Ensure that your septic system is at least 15 inches to 50 feet from any building. This type of system is easier and faster to install than traditional septic systems, and has many features that make it easier and faster for you to take care of your waste disposal needs. A 750-gallon septic tank costs $1,125, and 1,250-gallon septic tanks cost an average of $5,700. Aug 7, 2023 · In general, a septic tank should be inspected every 1 to 3 years and pumped every 3 to 5 years. 2 Sizing Guidelines Based on In the maximum width of 20 feet, only four laterals may be installed. Septic tanks are basic requirements for mound septic systems. 0 Design and Installation. 1. Jul 1, 2010 · on Jan 06, 2022. Introduction. Eljen supports this practice as it helps to promote long system life by reducing TSS and BOD to the effluent disposal area. Reply: See the MA Title 5 column in the table above. Now that we’ve prepared the ground, it’s time for step four which is to install your dry well septic system. If your groundwater is close to the surface, a mound septic system is the best choice. Material Jul 17, 2017 · Unlike conventional systems the mound system will require two separate tanks. For further information on the septic permitting process or concerns about septic systems in general, please contact the Department of Health at (574) 235-9722. Originally developed in North Dakota in the late 1940s, the mound was then known as the NODAK disposal system. This needs to be hauled away and disposed of as hazardous waste, and then replaced with Often a sand mound septic system is required when there are limiting conditions in the ground. If repair or replacement of the septic system is required, the cost can be anywhere from a few thousand dollars to $10,000 or much more if an alternative septic system is required. at SEPTIC TANK SIZE. If the soil has good percolation conditions—it’s comparatively sandy and waste water seeps down with little resistance—figure a seepage field of 4,500 square feet (say 100 feet long and 45 feet wide) for a three-bedroom house with normal waste output. Question: distance from a septic mound to a water well (Mar 10, 2016) Anonymous said: How far does a well have to be from a septic mound? Reply: Mound Septic System A mound septic system costs $10,000 to $20,000 to install. Not a good appearance. It is located underground. These systems cost between $2,500 and $9,000 (CAD 3,394 and CAD 12,219) to install, according to Forbes. (CSI) is a Minnesota business with almost two decades experience with Mound Systems in the Becker, MN area. Cleaning and unblocking septic system. In a sand mound system, the wastewater flows from the septic tank to a storage tank. But they work if you can pick the right one depending on your need. C. • Put plastic sheets, bark, gravel or other fill over the drainfield. Why You May Need An Alternative To A Septic System For Aug 1, 2021 · Sand Mounds. and see CLEARANCE DISTANCES, SEPTIC SYSTEM. A mound system is required if three feet of separa-tion cannot be achieved with an inground trench system. Grease and oil rise to the top to form scum. For a typical residential septic system, leach field trenches can range from 50 to 100 feet long. Although they are more expensive and require more maintenance than conventional systems, mound systems are a common alternative. A mound system is used when the ground is not suitable for a regular septic tank and drainfield, and there are a couple of possible reasons why: 1) The water table is high under the property, with not enough soil depth to absorb and Licensure Requirements for Septic System Contractors. They do not have enough room for a sand mound and need it to sell their house. Aug 7, 2023 · The main advantage of the drip distribution system is that no large mound of soil is needed as the drip laterals are inserted into the top 6 to 12 inches of soil. Nov 2, 2021 · The average mound septic system cost is $5,375 and homeowners spend $500 on annual maintenance. of water. This is a relatively common septic field that is installed on a • The natural soil utilized in a mound system is usually the top layer, which is typically the most permeable. How much space is needed for a mound septic system? Unlike conventional systems the mound system will require two separate tanks. Perfect for small lots. Conventional septic systems are relatively simple and easy to maintain, but they require enough space and suitable soil conditions to work properly. The mound is a drainfield bed that is raised above the natural soil surface with a specific sand fill material, all covered by suitable cover soil. 4 Aerobic Treatment Unit. Septic Tank: Mound System. The cost of an inspection can range from $200-$600 or more depending on the requirements. Conventional septic tank systems typically cost $3,000 to $8,000. Feb 9, 2022 · Drain Field Trench Specifications. The system may be used after the Department of Health passes the final inspection. 00, the septic system permit final inspection is $135. 1 How much does a mound septic system cost? The cost of installing a mound septic system can vary depending on factors such as location, soil conditions, and system size. It’s the most expensive system but often necessary in areas with high water tables, shallow soil depth, or shallow bedrock. 5 gallons per cubic foot: 216 x 7. This is where a sand mound septic system is often used. A person is not eligible for a license Nov 1, 2021 · Today's Down & Dirty is a quick overview of an engineered septic field called a mound system. This article explains how to determine the size and type of septic leachfield or soakaway bed or drainfield needed at your property and we give helpful . si eo vc dk go ei kd ka aw jx