Water system
Fayette County - culpepper Subdivision
EPA ID OH2400112 · Fayette County · 450 people served · owned by a local government
Fayette County - culpepper Subdivision buys its water from Washington Court House.
The system's record
- Water bodies
- Paint Creek, Washington C.H. Reservoir
- Raw intakes
- Washington Ch Reservoir
Washington Ch Paint Creek - Active wells
- 6
- Seller serves
- 14,100 people · Fayette County
- Seller's EPA ID
- OH2400714
About this area's water Washington Court House
The history, photo, rates, sewer details and water quality notes below are for Washington Court House, which supplies the water Fayette County - culpepper Subdivision buys. They are not Fayette County - culpepper Subdivision's own figures.
Did you know
- Washington Court House blends its water: roughly two-thirds is Paint Creek water impounded in city reservoirs and one-third comes from six wells.
- The whole city runs on one surface water plant rated at just 3 million gallons a day, staffed in 2023 by two Class III, one Class II and three Class I operators.
- It is the cheapest water in the region and the city says that is the problem: $33.02 a month for 5,000 gallons in early 2026, against $51.14 in Greenfield, $52.99 in Circleville and $59.31 in Hillsboro.
History5
- 2021Wastewater treatment plant reconstruction at the midpoint of a three-year rebuild: rated capacity going from about 12 MGD to 15.9 MGD dry weather and 22.9 MGD wet weather.
- 2022Contractor Dugan & Meyers reported the WWTP job as renovating 19 existing structures and building 5 new ones, including a 38-foot-deep influent pump station built with secant walls.
- 2023City operated one surface water treatment plant of 3 MGD design capacity under an unconditional Ohio EPA license; crews flushed 862 hydrants, repaired 12 main breaks and added 33 new services.
- 2026February: finance director told council that water rates, the lowest in the region at $33.02 for 5,000 gallons, do not cover the cost of service; council moved ahead with a rate study.
- 2026August: city manager Joe Denen described a new water treatment plant as the most important infrastructure investment the community will undertake; the project is in planning.
Treatment & pressure
How it is treated
One surface water treatment plant with a 3 million gallon per day design capacity.
Source: cityofwch.com
Water pressure
The city's water quality reports carry no distribution pressure figure, and no engineering report giving one was found.
What it costs at Washington Court House
Typical household bill about $33 a month for water.
Water quality & impurities10
| Contaminant | Level | Limit | Year |
|---|---|---|---|
| Total Chlorine Range 0.77-1.05; disinfectant residual, compliant. | 0.93 ppm | 4 (MRDL) | 2023 |
| Total Trihalomethanes (TTHM) Range 20.1-51.8; disinfection byproduct, compliant but the highest single result was 51.8. | 37.77 ppb | 80 | 2023 |
| Haloacetic Acids (HAA5) Compliant. | 12.43 ppb | 60 | 2023 |
| Turbidity Highest single reading; 100% of monthly samples met the limit and the yearly average was 0.10. | 0.24 NTU | 2023 | |
| Nitrate (as N) Range 0-0.47. | 0.47 ppm | 10 | 2023 |
| Fluoride Compliant. | 0.418 ppm | 4 | 2023 |
| Atrazine Herbicide runoff; well below the MCL. | 0.18 ppb | 3 | 2023 |
| Alpha emitters Erosion of natural deposits; monitored less than annually. | 3.66 pCi/L | 15 | 2020 |
| Lead 90th percentile; 0 of 30 samples over the action level. | 0 ppb | 2022 | |
| Copper 90th percentile; 0 of 30 samples over the action level. | 0.059 ppm | 2022 |
Source: cityofwch.com
EPA compliance record · Fayette County - culpepper Subdivision
Lead at the tap: 90th-percentile result 0 ppb in 2025 (action level 15 ppb).
EPA record: no health-based violations since 2015.
6 violations of any kind logged since 2020: 3 for required testing that was missed or reported late; 3 for a report, record or notice that was missing, late or incomplete (the yearly water quality report, a public notice, lead line records).
EPA compliance record · Washington Court House (treats the water)
Lead at the tap: 90th-percentile result 0 ppb in 2025 (action level 15 ppb).
EPA record: no health-based violations since 2015.
1 violation of any kind logged since 2020: 1 for a report, record or notice that was missing, late or incomplete (the yearly water quality report, a public notice, lead line records).
Projects & plans5
Recent and current work
- Wastewater treatment plant reconstruction · 2021
Rebuild raising capacity from about 12 MGD to 15.9 MGD dry weather and 22.9 MGD wet weather, switching chlorine gas disinfection to UV. - Dayton Avenue culvert replacement · 2026 · completed
Drainage project funded by an Ohio Public Works Commission grant with help from the Fayette County Engineer's Office.
Source: recordherald.comdugan-meyers.comrecordherald.com
Planned or needed
- New water treatment plant · 2026 · planned
- Eyman Park dam removal on Paint Creek · 2026 · planned
Grant-funded removal of an aging dam and accumulated debris, intended to improve stream function and water quality on Paint Creek. - Water rate increase · 2026 · proposed
Council has a rate study underway; the city manager said any increase would be gradual rather than a large one-time jump.
Source: recordherald.comrecordherald.com
Supply stress
The 2023 CCR rates the supply as having a high susceptibility to contamination. Paint Creek and the well field sit in heavily farmed country with a moderate number of potential contaminant sources, including mega-dairy operations, and agricultural runoff is named as the primary threat.
Source: cityofwch.com
Sewers at Washington Court House
Sanitary
City-owned wastewater treatment plant discharging to Paint Creek.
Source: recordherald.comdugan-meyers.comsciotovalleyguardian.com
Serves
Fayette County - culpepper Subdivision is not the main water supplier in any ZIP code; the ZIP codes it reaches are listed below.
Present in 1 ZIP code
- 43160 · Washington Court House0% of residents
Population-weighted resident shares; a ZIP code can have more than one system on record. Recomputed from each ZIP's own system list, not from the map's cached footprint.
Buys from · Sells to
Fayette County - culpepper Subdivision buys its water from Washington Court House.
No other system is on record buying water from Fayette County - culpepper Subdivision.
What the records show about Fayette County - culpepper Subdivision
Who runs it
EPA's record describes Fayette County - culpepper Subdivision as owned by a local government. It has 150 service connections and serves 450 people.
EPA classes it as a community water system, one that serves the same residents all year.
Its office telephone on EPA's record is 740-636-2380.
Source: EPA Safe Drinking Water Information System (SDWIS), water system record.
How the water is treated
Fayette County - culpepper Subdivision buys water that Washington Court House treats first, so the steps that count are the seller's. EPA's treatment table registers these steps for Washington Court House: aeration, corrosion control, coagulation and settling, chlorine disinfection, lime softening, powdered activated carbon, and sand or media filtration.
Fayette County - culpepper Subdivision adds nothing of its own on that table.
The list is what each system registered with EPA for treatment plants EPA still shows as active, and it can lag a plant upgrade.
Source: EPA Safe Drinking Water Information System (SDWIS) treatment table (EPA Envirofacts, pulled September 2026).
Violations
EPA's record shows no health-based violations for Fayette County - culpepper Subdivision since 2015.
EPA logs 6 violations of any kind since 2020: 3 for required testing that was missed or reported late; 3 for a report, record or notice that was missing, late or incomplete (the yearly water quality report, a public notice, lead line records).
Source: EPA Safe Drinking Water Information System (SDWIS) violation records: health-based violations with compliance periods beginning in 2015 or later, all violations from 2020 or later (EPA Envirofacts, pulled November 2026).
Lead and copper at the tap
For the sampling period ending December 2025, EPA's record lists the 90th-percentile lead result at Fayette County - culpepper Subdivision as 0 ppb, under both the current 15 ppb action level and the 10 ppb level that applies from 2027. EPA records a result below the lab's reporting level as 0, so this is the result reported, not proof that no home sampled had lead.
The highest result on file is 17.9 ppb, in the period ending December 2019.
EPA has 11 sampling periods on file for Fayette County - culpepper Subdivision since 2016, the first ending in 2018; 1 of the 11 periods went above 15 ppb, and 2 above 10 ppb.
Every water system has to inventory its service lines, the pipes from the main to each building. In the inventory Fayette County - culpepper Subdivision sent EPA, 145 lines are counted.
| Material | Lines |
|---|---|
| Lead | 0 |
| Galvanized, needing replacement | 0 |
| Unknown material | 0 |
| Not lead | 145 |
| All lines | 145 |
Systems sample taps in the homes most likely to have lead pipes or solder. The 90th-percentile result is the level nine in ten of the sampled homes were at or below. Lead comes mostly from service lines and house plumbing, not the source water, so a low result for the system does not clear an old house.
EPA's dashboard status for this inventory: reported all required service line types.
Source: EPA Safe Drinking Water Information System (SDWIS) lead and copper 90th-percentile results (EPA Envirofacts), sampling periods ending 2016 or later; EPA's service line inventory dashboard, Ohio's 2026 Q2 submission.
PFAS
The water Fayette County - culpepper Subdivision buys is treated by Washington Court House, so the results below are Washington Court House's.
EPA's fifth national round of testing (UCMR 5) took 4 samples of the water entering the pipes of Washington Court House in 2024 to 2025 and measured 29 PFAS. EPA's UCMR 5 file shows no PFAS detected, PFOA and PFOS (federal limit 4 ng/L each) among them.
Ohio EPA's own statewide sampling tested 1 plant of Washington Court House (latest sample July 2020). Not one of the six PFAS tested (PFOA, PFOS, PFHxS, PFNA, GenX and PFBS) was detected.
Ohio EPA's current sampling status map lists 1 plant of Washington Court House as sampled, most recently July 2025.
PFAS are the 'forever chemicals' from firefighting foam, plating shops and non-stick coatings. Results are for water leaving the plant, not your tap.
Source: EPA UCMR 5 occurrence data (final release, August 2026); Ohio EPA statewide PFAS sampling, 2019 to 2021, and its sampling status map.
Disinfection byproducts
Chlorine that disinfects water also reacts with organic matter to form byproducts. Two groups have federal limits: total trihalomethanes (TTHM, 80 µg/L) and five haloacetic acids (HAA5, 60 µg/L), judged on running yearly averages at each sampling site.
For TTHM, the average of Fayette County - culpepper Subdivision's samples in 2019, the last year it was sampled, was 65.5 µg/L. The worst yearly average was 65.5 µg/L and the highest single sample was 82.5 µg/L, from 13 samples taken from 2012 to 2019.
For HAA5, the average in the last year sampled was 13.8 µg/L. The worst yearly average was 13.9 µg/L and the highest single sample was 16.5 µg/L, from 13 samples.
| Byproduct | Limit | Latest yearly average | Worst yearly average | Highest sample | Samples |
|---|---|---|---|---|---|
| TTHM | 80 µg/L | 65.5 µg/L (2019) | 65.5 µg/L | 82.5 µg/L | 13 |
| HAA5 | 60 µg/L | 13.8 µg/L | 13.9 µg/L | 16.5 µg/L | 13 |
A yearly average of 0 means nothing was detected in that year's samples. EPA's file stops at 2019; Ohio EPA's Drinking Water Watch has newer results.
Source: EPA Six-Year Review 4 compliance monitoring data, 2012 to 2019, distribution-system samples (non-detects counted as zero).
Nitrate, arsenic and radioactivity
The water Fayette County - culpepper Subdivision buys is treated by Washington Court House, so the results below are Washington Court House's.
Nitrate: the highest of 152 samples was 7.9 mg/L (as nitrogen) in 2017; in 2019, the last year sampled, the highest was 0.99 mg/L. No sample was over the limit of 10 mg/L. Nitrate above 10 is unsafe for infants.
Arsenic was not detected in 8 samples (limit 10 µg/L).
| Contaminant | Samples | Highest result | Limit | Samples over limit |
|---|---|---|---|---|
| Nitrate (as nitrogen) | 152 | 7.9 mg/L | 10 mg/L | 0 |
| Arsenic | 8 | not detected | 10 µg/L | 0 |
Measured in finished water: at the plant's entry points and in the distribution system; raw well and intake samples are left out. Non-detects count as zero.
Source: EPA Six-Year Review 4 compliance monitoring data, 2012 to 2019, finished water of Washington Court House.
Solvents and fuels
The water Fayette County - culpepper Subdivision buys is treated by Washington Court House, so the results below are Washington Court House's.
EPA's file holds results for all six solvent and fuel compounds it checked. Benzene, carbon tetrachloride, 1,2-dichloroethane, trichloroethylene, tetrachloroethylene, and vinyl chloride were not detected in 8 samples each.
| Compound | Limit | Samples | Detected in | Highest result | Samples over limit |
|---|---|---|---|---|---|
| Benzene | 5 µg/L | 8 | 0 of 8 | not detected | 0 |
| Carbon tetrachloride | 5 µg/L | 8 | 0 of 8 | not detected | 0 |
| 1,2-dichloroethane | 5 µg/L | 8 | 0 of 8 | not detected | 0 |
| Trichloroethylene (TCE) | 5 µg/L | 8 | 0 of 8 | not detected | 0 |
| Tetrachloroethylene (PCE) | 5 µg/L | 8 | 0 of 8 | not detected | 0 |
| Vinyl chloride | 2 µg/L | 8 | 0 of 8 | not detected | 0 |
"Not detected" means the lab's result was below what its method can measure, not that the compound is absent. Non-detects count as zero in the highest-result column.
Source: EPA Six-Year Review 4 compliance monitoring data, 2012 to 2019, finished water of Washington Court House.
Farm chemicals and metals
The water Fayette County - culpepper Subdivision buys is treated by Washington Court House, so the results below are Washington Court House's.
EPA's file holds results for 8 of the nine herbicides and metals it checked. Detected: atrazine in 4 of 8 samples, highest 0.12 µg/L (limit 3); barium in 5 of 8 samples, highest 17 µg/L (limit 2,000). Not detected: alachlor, chromium, cadmium, mercury, selenium, and thallium, in 8 samples each.
| Substance | Kind | Limit | Samples | Detected in | Highest result | Samples over limit |
|---|---|---|---|---|---|---|
| Atrazine | Farm chemical | 3 µg/L | 8 | 4 of 8 | 0.12 µg/L | 0 |
| Alachlor | Farm chemical | 2 µg/L | 8 | 0 of 8 | not detected | 0 |
| Chromium | Metal | 100 µg/L | 8 | 0 of 8 | not detected | 0 |
| Cadmium | Metal | 5 µg/L | 8 | 0 of 8 | not detected | 0 |
| Barium | Metal | 2,000 µg/L | 8 | 5 of 8 | 17 µg/L | 0 |
| Mercury | Metal | 2 µg/L | 8 | 0 of 8 | not detected | 0 |
| Selenium | Metal | 50 µg/L | 8 | 0 of 8 | not detected | 0 |
| Thallium | Metal | 2 µg/L | 8 | 0 of 8 | not detected | 0 |
Non-detects count as zero in the highest-result column.
Source: EPA Six-Year Review 4 compliance monitoring data, 2012 to 2019, finished water of Washington Court House.
Bacteria in the pipes
From 2012 to 2019, 4 of 109 routine total coliform samples taken in the distribution system at Fayette County - culpepper Subdivision tested positive (3.67%); in 2019, the last year on file, 1 of 12 did. E. coli was found in 1 of 104 samples tested for it.
A positive coliform test is a warning sign, not a violation by itself. E. coli is a sign that human or animal waste may have reached the water. Coliform counts are routine samples only; E. coli counts include repeat samples.
Source: EPA Six-Year Review 4 compliance monitoring data, 2012 to 2019, distribution-system presence/absence tests for total coliform and E. coli.
Fluoride
The Ohio Department of Health's report to the CDC (My Water's Fluoride) says Fayette County - culpepper Subdivision buys its water from Washington Court House, a system that has fluoride from natural sources, but at a level below what is recommended for preventing tooth decay, and does not adjust it. The level it reports is 0.42 mg/L.
EPA's treatment table lists no fluoridation step at Washington Court House, which treats the water Fayette County - culpepper Subdivision buys.
Measured fluoride: 0.36 mg/L on average leaving the plants of Washington Court House, which supplies Fayette County - culpepper Subdivision, in 2019 (below the 0.7 mg/L level now recommended); samples ran from 0.19 to 0.38 mg/L across 8 samples in 2012 to 2019.
The recommended level for preventing tooth decay is 0.7 mg/L; the federal limit is 4 mg/L. The treatment list is what each system registered with EPA and can lag a plant upgrade.
Source: CDC My Water's Fluoride (fluoridation status as reported by the Ohio Department of Health, fetched September 2026); EPA Safe Drinking Water Information System (SDWIS) treatment table; EPA Six-Year Review 4 compliance monitoring data, 2012 to 2019, entry-point fluoride samples.
Lithium
Lithium was not detected in 4 UCMR 5 samples at Washington Court House, which supplies Fayette County - culpepper Subdivision, last sampled in 2025 (the method reports from 9 µg/L).
Lithium is not regulated. EPA's draft health reference level is 10 µg/L, and it occurs naturally in deep groundwater, so well systems in the northwest run highest.
Source: EPA UCMR 5 occurrence data (final release, August 2026), samples from 2023 to 2025.
Algal toxins
The water Fayette County - culpepper Subdivision buys is treated by Washington Court House, so the results below are Washington Court House's.
Ohio EPA tests for microcystin, a toxin that harmful algal blooms can release, in raw water at the intake and in treated water.
At the intake, microcystin was detected 1 time in 228 raw-water samples, across 1 bloom season (2018); the highest raw-water result was 0.581 µg/L on January 22, 2018. There has been no raw-water detection since 2024.
Microcystin was never detected in treated water (78 samples).
In all, 306 samples from 2016 to 2026, the latest on August 24, 2026.
| Water | Samples | Detections | Highest result |
|---|---|---|---|
| Raw water, at the intake | 228 | 1 | 0.581 µg/L |
| Treated water | 78 | 0 | not detected |
The ten-day advisory levels for treated water are 0.3 µg/L for children under six and 1.6 µg/L for everyone else. Any detection at the intake triggers more frequent testing until two clean weeks.
Source: Ohio EPA public water system harmful algal bloom monitoring, 2016 to present (HAB data, fetched September 2026).
How well the service area is mapped
EPA estimated the service area of Fayette County - culpepper Subdivision with a computer model rather than drawing it from the utility's map, so its edges are approximate.
Source: EPA Service Area Boundaries; resident estimate by this atlas from ZIP-code overlap.
On the map
Show this system's territory on the map — 1 ZIP code in all.
Sources
U.S. EPA SDWIS and Community Water System Service Area Boundaries (v3, 2026), Ohio EPA primacy data, 2020 census blocks: the system serving most residents, traced through purchases to the treating utility; Ohio EPA 2023 Sewer and Water Rate Survey (Ohio State, May 2025) for household bills; Ohio EPA DEFA loan awards since 2016 for the loans paragraph · EPA SDWIS · EPA service area boundaries · Ohio EPA drinking water · Ohio EPA rate survey
EPA's own record for this system: Enforcement and Compliance History report for OH2400112 (EPA ECHO).