Septic Pumping Outside Ashland City Limits, MO
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- Serving Boone County homes on septic
This page is for homes outside Ashland's city limits: the rural roads and acreage around Ashland, about 10 miles south of Columbia (straight-line, from 2024 Census place coordinates). Inside the city, wastewater goes to the City of Ashland's sewer system, which the city owns and the Boone County Regional Sewer District operates under contract. Out past that system, homes rely on septic tanks and single-family lagoons. If yours is one of them, send the short request form and we'll pass it to independent local septic professionals who serve southern Boone County.
Request service with the short form on this page.
We pass your request to independent local septic professionals, and a local septic pro will contact you directly. They'll reach out as soon as they can; timing depends on their schedule. If it's an emergency, say so in the form so the contractor sees it.
Who Runs Ashland's Sewer
The City of Ashland owns and runs its sewer utility. According to the city:
- In 2020, Ashland opened a new mechanical wastewater treatment plant, replacing the city's aeration lagoon as its main treatment system.
- The collection system includes 19 lift stations and several miles of buried pipe feeding the plant.
- The plant was built for modular growth, and it's now being expanded from 600,000 to 1.6 million gallons per day to keep pace with what the city calls record growth.
Inside the plant, the city explains, wastewater passes a mechanical bar screen and grit collector, then aeration basins, clarifiers and digesters. Biosolids are dewatered on a belt press, and the water gets ultraviolet disinfection and re-aeration before it's discharged. (Source: City of Ashland, Sewer page.)
The Boone County Regional Sewer District (BCRSD) also plays a role. Its 2026 area-wide wastewater management plan says BCRSD began contract operations for the City of Ashland in 2022, working with and training city wastewater staff and providing emergency on-call service for the treatment plant and lift stations, and it recommends continuing those contract services. The plan describes the plant as the City of Ashland's facility, permitted to serve the city, with a treatment train of screening, grit removal, extended aeration, clarifiers, UV disinfection, aerobic sludge digestion and dewatering. (Source: BCRSD Area-Wide Wastewater Management Plan, 2026.)
In short, the city owns the system and the sewer district helps operate it under contract. Before BCRSD took on that role, the plan notes, Ashland used a private service provider to operate and manage its sanitary system. The plant is regulated under MoDNR permit MO-0106844, and the current permit runs from September 1, 2025, through August 31, 2030.
BCRSD itself was formed in 1973 and serves unincorporated Boone County. It's a separate public body from the city. If your Ashland-area property is outside the city limits, BCRSD or an onsite system may apply instead.
Properties Outside the City Limits
Homes connected to the city's sewer don't need pumping. Outside the limits, septic tanks and lagoons serve:
- Rural homes and acreage beyond the city's collection system.
- Churches, small businesses and similar sites that BCRSD's plan lists as running their own small treatment systems near town.
BCRSD's plan recommends that several small facilities within about 2,000 feet of Ashland's collection system connect to the City of Ashland once capacity is available, tying the timing to the plant expansion. That's a sign of where sewer is headed: as Ashland's lines and capacity grow, some nearby properties will move off onsite systems. If you're near the city's edge, ask the city whether sewer is planned for your road.
Onsite Rules Outside Ashland
Outside the city system, onsite wastewater falls under Boone County Resource Management. The county's ordinance dates to 1993, and enforcement moved to Resource Management in mid-2022. For pumping alone, you don't need a county permit. For a new system, a repair or a home addition, the county is where to start.
Many rural Ashland properties use a single-family wastewater lagoon instead of an absorption field. Boone County's lagoon requirements (updated 2022) include:
- Lagoons are not generally suitable in subdivisions with lots smaller than 3 acres.
- A lagoon must sit at least 500 feet from any sinkhole. In a designated sinkhole area, the county requires an engineer-designed and certified system.
- The lagoon needs at least 3 feet of separation from creviced bedrock.
- The site has to be prepared and marked before the county's site inspection.
A lagoon doesn't need pumping the way a tank does, but many lagoon systems have a septic tank ahead of them, and that tank does. Ask the pro to check whether yours has one.
Soils South of Columbia (NRCS Data)
We checked USDA NRCS soil data (USDA NRCS Soil Data Access) at points in and around Ashland. The major soils and their ratings for septic tank absorption fields:
| Soil (NRCS) | What it is | NRCS limit |
|---|---|---|
| Keswick | Very deep, somewhat poorly drained; loess over an old buried soil formed in glacial till | Very limited: saturated zone, slow water movement |
| Bardley–Clinkenbeard, very stony | Bardley is moderately deep over dolomite, bedrock at about 36 inches; Clinkenbeard bedrock at about 25 inches | Very limited: depth to bedrock, slope, large stones |
| Hatton | Loess over till, very slowly permeable | Very limited: saturated zone, slow water movement |
| Leonard | Very deep, poorly drained, slowly permeable | Very limited: saturated zone, slow water movement |
| Weller | Deep, slowly permeable loess on uplands | Very limited: saturated zone, slow water movement |
Ashland sits where two landscapes meet. On the clay-rich uplands formed in loess and glacial till (Keswick, Hatton, Leonard), water perches on tight subsoil. On the stony slopes, Bardley and Clinkenbeard put rock close to the surface. NRCS's "large stones" flag on the stony hillside units means rock fragments big enough to get in the way of digging trenches and setting a tank. On these hillsides the county's 3-foot bedrock separation for lagoons can rule out a site outright. Neither landscape makes a conventional absorption field easy, which helps explain why Boone County's own guidance points so many owners toward lagoons and engineered systems.
State Minimums and Setbacks That Apply Here
Missouri's construction standard (19 CSR 20-3.060) sets the floor for tank size: 1,000 gallons for a one- to three-bedroom house, 1,250 for four bedrooms, and 1,500 for five. Its setback table keeps sewage tanks 50 feet from a private well and from the edge of a surficial sinkhole, and absorption areas 100 feet from both. Sewage tanks and absorption systems shouldn't be in a sinkhole's drainage area at all.
Pumping Considerations for Ashland-Area Homes
- Wet clay: On Keswick, Leonard and Hatton ground, soils stay wet after rain. A truck on a soft yard can rut it, so mention the access route and recent weather.
- Pump tanks: Systems that lift effluent to a lagoon or a field have a pump chamber. Say so in your request.
- Records: Keep the pumper's receipt with the date and gallons removed. If you ever add on, the county will want to know about the existing system.
More on local requirements: Boone County septic rules.
Ashland Septic Questions
Is Ashland's sewer run by the county sewer district?
The City of Ashland owns it. BCRSD has provided contract operations since 2022.
Can I put a lagoon on my lot near Ashland?
County guidance says lagoons aren't generally suitable in subdivisions with lots under 3 acres. Larger rural lots are evaluated case by case.
Why are absorption fields hard here?
NRCS rates the major local soils "very limited," mainly because of perched water, slow permeability, and shallow rock on the stony hillsides.
Request service with the short form on this page.
We pass your request to independent local septic professionals, and a local septic pro will contact you directly. They'll reach out as soon as they can; timing depends on their schedule. If it's an emergency, say so in the form so the contractor sees it.
Who Regulates Septic Here
- Boone County: Boone County Resource Management has enforced the county's onsite wastewater ordinance since June 28, 2022. Its page lists a $510 permit fee for a new system or an upgrade, and a $35 "existing evaluation" fee. That evaluation is required when you add bedrooms or bathrooms to a home on septic. It isn't a home-sale inspection.
- Lagoons: single-family lagoons are under the county. Lagoons serving more than a single-family home fall under the Missouri Department of Natural Resources, per DHSS.
- Statewide: the Missouri Department of Health and Senior Services onsite program sets the construction standards in 19 CSR 20-3.060. Real-estate inspections fall under 19 CSR 20-3.070.
Rules change. Confirm with the county office.
Ready when you are
Tell us what you need and a local septic pro will reach out.