SepticRecord

Mercer County

Septic services in Coldwater, Ohio

Operators based within 12 miles of Coldwater

Listed by where the business is, not by who it says it serves. Every operator here was on the ODH 2026 sewage treatment system bond lists on the date its record shows, and the address it is placed by comes from that same list, so this is a checkable claim rather than a service-area promise. An Ohio bond covers work in any health district in the state, though each district registers its contractors separately, so operators further out can work here too; these are simply the ones closest to you.

Frank Sutter

On the state bond list for 2026

Septic System Repair · Septic Installation

Phone
not on file
Website
none

Unrast Excavating , LLC

On the state bond list for 2026

Septic System Repair · Septic Installation

Phone
not on file
Website
none

Soil and septic suitability around Coldwater

The USDA has already rated this ground for exactly one use: a septic tank absorption field. Within 4 miles of Coldwater — 32,044 acres across 40 soil map units — it rates 98.9% of the land very limited for that use and 0% somewhat limited, and almost none with no limitation at all.

What the limitation actually is

A rating on its own tells you nothing you can act on. The reasons do, and around Coldwater the leading one is depth to saturated zone on 98.8% of the mapped area, followed by slow water movement on 94.5%. In full:

Limiting featureShare of areaWhat it means on site
Depth to saturated zone98.8%A seasonal water table sits too close to the surface
Slow water movement94.5%Water moves through the soil too slowly for a drain field to keep up
Ponding34.8%Water stands on the surface
Flooding4.9%The site floods often enough to matter
Seepage, bottom layer1.6%The layer beneath the trench is porous enough that effluent could reach groundwater without being filtered

Shares overlap: most soils here are limited for more than one reason at once, so these do not sum to 98.9%.

The soils themselves

The named soils and land types that make up most of the ground around Coldwater. Blount alone accounts for 47% of it.

Soil or land typeShareDrainageSlopeDepth to bedrockSeptic rating
Blount47% Somewhat poorly drained 0 to 6% None in profile Very limited
Pewamo29.3% Very poorly drained 0 to 2% None in profile Very limited
Glynwood11.6% Moderately well drained 1 to 12% None in profile Very limited
Minster3.9% Very poorly drained 0 to 1% None in profile Very limited
Shoals2.7% Somewhat poorly drained 0 to 2% None in profile Very limited

“None in profile” means SSURGO records no bedrock or other restrictive layer within the depth it describes, not that none exists.

Area of interest: a 4-mile radius around the USGS Geographic Names centre point for Coldwater (GNIS 2398595, 40.4830, -84.6333), chosen because five of this state's communities are unincorporated and have no boundary to use, and because the lots that need a septic permit are in the ring around a town rather than inside it. Soil from USDA-NRCS Soil Data Access, SSURGO interpretation “ENG - Septic Tank Absorption Fields”, area-weighted by mapped acreage and by each component's share of its map unit. Survey areas: Mercer County, Ohio (2025-09-02). Retrieved 2026-09-18.

This is a survey, not an evaluation of your lot. The permit decision rests on the site evaluation ODH carries out for the specific parcel.

By service

Permitting in Mercer County

In Mercer County a septic (sewage treatment system) permit is issued by the local board of health, not by the state. The Ohio Department of Health writes the rules; the health district applies them and registers the contractors who work in it. See the Mercer County detail →