Water system
Crooksville
EPA ID OH6400111 · Perry County · 2,534 people served · owned by a local government
Crooksville buys its water from Burr Oak Regional Water District.
The system's record
- Aquifer
- Hocking River buried valley aquifer (sand and gravel)
- Active wells
- 6
- Serves
- 1,994 people · Athens County
- EPA ID
- OH0501311
About this area's water
Did you know
- Crooksville buys 100% of its drinking water rather than treating any itself — it's entirely dependent on the Burr Oak Regional Water District's wellfield near Athens.
- That same wellfield also supplies 17 other 'satellite' systems and roughly 36,000 other Ohioans besides Crooksville's own 2,534 residents.
- Crooksville grew up around 'bluebird pottery' kilns fired only in spring and fall (when the bluebirds were around), earning it the nickname 'The Clay City of Perry County,' and later hosted the well-known Hull Pottery…
- The village's 2025 water report had to publicly correct multiple errors from the prior year's report — including a copper action level mistakenly listed as 1,300 ppm instead of 1.3 ppm, and understated disinfection…
Source: crooksville.comen.wikipedia.org
History5
- 1874Village grew out of a post-office petition; the Post Office Department approved Joseph Crooks's request after rejecting the proposed 'Reeds Post Office' as a duplicate, naming it Crooksville instead.
- 1894Formally incorporated as a village, population about 800.
- 1920Population peaked at 3,311 (per Wikipedia's history section), having grown from 835 in 1900 to 3,028 in 1910 during the pottery and coal boom; not 1910 as previously stated. (2,534 are served by the…
- 2012Ohio EPA completed a Drinking Water Source Assessment for Burr Oak Regional Water District's wellfield, rating it highly susceptible to contamination.
- 2025The 2025 CCR disclosed and corrected multiple errors in Crooksville's 2024 CCR: copper MCLG was reported as 0 ppm (actual 1.3 ppm) and its action level as 1,300 ppm (actual 1.3 ppm); lead 90th…
Source: en.wikipedia.orgcrooksville.com
Treatment & pressure
How it is treated
Crooksville has no treatment plant of its own; it buys fully treated water from Burr Oak Regional Water District, which pumps groundwater from 6 wells (about 4 MGD) in the sand-and-gravel Hocking River Buried Valley aquifer in Athens County/Dover Township and disinfects with chlorine (TTHM/HAA5 are…
Source: crooksville.com
Water pressure
Not published; no pressure-zone or psi figures appear in the 2025 CCR or the village site.
What it costs
Not published online; the village directs residents to the Utility Billing Department (740-982-2712) for current water rates — this phone number matches the billing contact given…
Source: crooksville.com
Water quality & impurities8
| Contaminant | Level | Limit | Year |
|---|---|---|---|
| Total Trihalomethanes (TTHM) Range 44.2-71.5 ppb. Flagged as a violation in the 2025 CCR despite being under the 80 ppb numeric MCL (a… | 71.5 ppb | 80 ppb | 2025 |
| Haloacetic Acids (HAA5) Range 11.7-21 ppb; no violation. By-product of chlorination. | 21 ppb | 60 ppb | 2025 |
| Lead (90th percentile) 0 of 10 samples over the action level. | 1.0 ppb | 15 ppb action… | 2025 |
| Copper (90th percentile) 0 of 10 samples over the action level. | 0.158 ppm | 1.3 ppm action… | 2025 |
| Fluoride Range 0.77-1.24 ppm. | 1.24 ppm | 4 ppm | 2025 |
| Nitrate Well below MCL. | 0.50 ppm | 10 ppm | 2025 |
| Barium BORWD sampling result. | 0.061 ppm | 2 ppm | 2023 |
| Cyanide BORWD sampling result. | 1.0 ppb | 200 ppb | 2023 |
Source: crooksville.com
EPA compliance record
Lead at the tap: 90th-percentile result 1.4 ppb in 2025 (action level 15 ppb).
EPA health-based violations since 2015:
- 2017Total trihalomethanes (TTHM) · above the legal limit on average · measured 0.081 MG/L (limit 0.08 MG/L) · returned to compliance
9 violations of any kind logged since 2020: 4 for required testing that was missed or reported late; 5 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 · Burr Oak Regional Water District (treats the water)
Lead at the tap: 90th-percentile result 1.7 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 & plans2
Recent and current work
- Water Systems Improvement Project
A village web page referencing this project exists but, on direct review, contains no cost, scope, or date detail — only navigation/contact boilerplate. Year…
Source: crooksville.com
Planned or needed
- Lead service line inventory · under construction
Per the 2025 CCR: 'The Village of Crooksville continues to work on the service line inventory,' viewable in person at the village office, 22 China Street…
Source: crooksville.com
Supply stress
The purchased source (Burr Oak Regional Water District's wells in the Hocking River Buried Valley aquifer) is rated by Ohio EPA (Drinking Water Source Assessment, May 2012) as highly susceptible to contamination, due to a protective clay layer under 20 ft thick, depth to water under 20 ft, and nearby potential contaminant sources (a…
Source: crooksville.com
Sourcesverified
Compiled from the utility's own reports and public records, then independently re-checked against primary sources.
Main supplier in 1 ZIP code
Serves
Main water supplier in 1 ZIP code
- 43731 · Crooksville52% of residents
Also present in 1 more ZIP code
- 43777 · Roseville2% 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
Crooksville buys its water from Burr Oak Regional Water District.
No other system is on record buying water from Crooksville.
What the records show about Crooksville
Who runs it
EPA's record describes Crooksville as owned by a local government. It has 1,612 service connections and serves 2,534 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 740-562-9048.
Source: EPA Safe Drinking Water Information System (SDWIS), water system record.
How the water is treated
Crooksville buys water that Burr Oak Regional Water District treats first, so the steps that count are the seller's. EPA's treatment table registers these steps for Burr Oak Regional Water District: aeration, corrosion control, chlorine disinfection, iron and manganese removal, fluoridation, ion-exchange softening, and sand or media filtration.
Crooksville 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 counts 1 health-based violation for Crooksville since 2015. Health-based means a contaminant above its legal limit or a required treatment step not carried out. It falls into 1 separate problem (one contaminant or rule in one year); the table lists it.
EPA logs 9 violations of any kind since 2020: 4 for required testing that was missed or reported late; 5 for a report, record or notice that was missing, late or incomplete (the yearly water quality report, a public notice, lead line records).
| Year | Contaminant or rule | Kind | Measured | Limit | Status in EPA's record |
|---|---|---|---|---|---|
| 2017 | Total trihalomethanes (TTHM) | above the legal limit on average | 0.081 mg/L | 0.08 mg/L | returned to compliance |
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 September 2026).
Lead and copper at the tap
In the sampling period ending December 2025, the 90th-percentile lead result at Crooksville was 1.4 ppb, under both the current 15 ppb action level and the 10 ppb level that applies from 2027.
The highest result on file is 2 ppb, in the period ending December 2018.
EPA has 9 sampling periods on file for Crooksville since 2016, the first ending in 2016; no period was above 10 ppb.
Every water system has to inventory its service lines, the pipes from the main to each building. In the inventory Crooksville sent EPA, 1,603 lines are counted.
| Material | Lines |
|---|---|
| Lead | 0 |
| Galvanized, needing replacement | 0 |
| Unknown material | 1,483 |
| Not lead | 120 |
| All lines | 1,603 |
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 Crooksville buys is treated by Burr Oak Regional Water District, so the results below are Burr Oak Regional Water District's.
Ohio EPA's own statewide sampling tested 1 plant of Burr Oak Regional Water District (latest sample June 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 Burr Oak Regional Water District as sampled, most recently June 2026.
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 Crooksville's samples in 2019, the last year it was sampled, was 52 µg/L. The worst yearly average was 82.8 µg/L and the highest single sample was 94 µg/L, from 54 samples taken from 2012 to 2019. A yearly average over 80 is not itself a violation, because compliance is judged site by site.
For HAA5, the average in the last year sampled was 18 µg/L. The worst yearly average was 34.9 µg/L and the highest single sample was 58.6 µg/L, from 54 samples.
| Byproduct | Limit | Latest yearly average | Worst yearly average | Highest sample | Samples |
|---|---|---|---|---|---|
| TTHM | 80 µg/L | 52 µg/L (2019) | 82.8 µg/L | 94 µg/L | 54 |
| HAA5 | 60 µg/L | 18 µg/L | 34.9 µg/L | 58.6 µg/L | 54 |
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 Crooksville buys is treated by Burr Oak Regional Water District, so the results below are Burr Oak Regional Water District's.
Nitrate: the highest of 10 samples was 0.48 mg/L (as nitrogen) in 2013; in 2019, the last year sampled, nitrate was not detected. No sample was over the limit of 10 mg/L. Nitrate above 10 is unsafe for infants.
Arsenic was not detected in 3 samples (limit 10 µg/L).
| Contaminant | Samples | Highest result | Limit | Samples over limit |
|---|---|---|---|---|
| Nitrate (as nitrogen) | 10 | 0.48 mg/L | 10 mg/L | 0 |
| Arsenic | 3 | 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 Burr Oak Regional Water District.
Solvents and fuels
The water Crooksville buys is treated by Burr Oak Regional Water District, so the results below are Burr Oak Regional Water District'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 9 samples each.
| Compound | Limit | Samples | Detected in | Highest result | Samples over limit |
|---|---|---|---|---|---|
| Benzene | 5 µg/L | 9 | 0 of 9 | not detected | 0 |
| Carbon tetrachloride | 5 µg/L | 9 | 0 of 9 | not detected | 0 |
| 1,2-dichloroethane | 5 µg/L | 9 | 0 of 9 | not detected | 0 |
| Trichloroethylene (TCE) | 5 µg/L | 9 | 0 of 9 | not detected | 0 |
| Tetrachloroethylene (PCE) | 5 µg/L | 9 | 0 of 9 | not detected | 0 |
| Vinyl chloride | 2 µg/L | 9 | 0 of 9 | 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 Burr Oak Regional Water District.
Farm chemicals and metals
The water Crooksville buys is treated by Burr Oak Regional Water District, so the results below are Burr Oak Regional Water District's.
EPA's file holds results for 8 of the nine herbicides and metals it checked. Detected: barium in 3 of 3 samples, highest 53.8 µg/L (limit 2,000). Not detected: atrazine in 2 samples, alachlor in 2 samples, chromium in 3 samples, cadmium in 3 samples, mercury in 3 samples, selenium in 3 samples, thallium in 3 samples.
| Substance | Kind | Limit | Samples | Detected in | Highest result | Samples over limit |
|---|---|---|---|---|---|---|
| Atrazine | Farm chemical | 3 µg/L | 2 | 0 of 2 | not detected | 0 |
| Alachlor | Farm chemical | 2 µg/L | 2 | 0 of 2 | not detected | 0 |
| Chromium | Metal | 100 µg/L | 3 | 0 of 3 | not detected | 0 |
| Cadmium | Metal | 5 µg/L | 3 | 0 of 3 | not detected | 0 |
| Barium | Metal | 2,000 µg/L | 3 | 3 of 3 | 53.8 µg/L | 0 |
| Mercury | Metal | 2 µg/L | 3 | 0 of 3 | not detected | 0 |
| Selenium | Metal | 50 µg/L | 3 | 0 of 3 | not detected | 0 |
| Thallium | Metal | 2 µg/L | 3 | 0 of 3 | 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 Burr Oak Regional Water District.
Bacteria in the pipes
From 2012 to 2019, 0 of 276 routine total coliform samples taken in the distribution system at Crooksville tested positive (0%); in 2019, the last year on file, 0 of 36 did. E. coli was never found in the 9 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 Crooksville buys its water from Burr Oak Regional Water District, a system that adjusts the fluoride level to the recommended level for preventing tooth decay.
EPA's treatment table lists fluoridation among the steps at Burr Oak Regional Water District, which treats the water Crooksville buys.
Measured fluoride: 1 mg/L on average leaving the plants of Burr Oak Regional Water District, which supplies Crooksville, in 2017 (in the range dentists aim for); samples ran from 0.92 to 1.04 mg/L across 3 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.
How well the service area is mapped
EPA estimated the service area of Crooksville with a computer model rather than drawing it from the utility's map, so its edges are approximate.
Counting the people who live in the ZIP codes it overlaps, this atlas estimates 2,816 residents are inside the boundary, 111% of the 2,534 people Crooksville reports serving.
The resident count is an estimate from 2020 Census ZIP-code populations, not a count of customers.
Source: EPA Service Area Boundaries; resident estimate by this atlas from ZIP-code overlap.
Photograph
On the map
Show this system's territory on the map — 2 ZIP codes 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 OH6400111 (EPA ECHO).
Notable facts: crooksville.com, en.wikipedia.org
History: en.wikipedia.org, crooksville.com
Water quality: crooksville.com
Planned work: crooksville.com
Capital projects: crooksville.com
Rates: crooksville.com
Treatment: crooksville.com
Supply stress: crooksville.com
