Water system
Ohio and Lee Twp Water Authority
EPA ID OH5600412 · Monroe County · 1,620 people served
Ohio and Lee Twp Water Authority treats its own water from Groundwater wells (2 wells).
The system's record
- Active wells
- 2
- Serves
- 1,620 people · Monroe County
- EPA ID
- OH5600412
About this area's water
Did you know
- The Authority's name, 'Ohio and Lee Township Water Authority,' reflects that it serves two adjoining Monroe County townships.
- Hannibal was originally platted as 'Baresville' after founder Jacob Bare before being renamed for its post office.
- Hannibal sits directly beside the Hannibal Locks and Dam on the Ohio River.
- Hannibal's population fell nearly 24% between 2010 (411) and 2020 (314).
- The Authority's Duffy wastewater plant, opened in 2024, was the first fix in a 2011 legal settlement over decades of raw sewage discharge into the Ohio River — a problem local officials had discussed addressing for…
Source: en.wikipedia.orgglcap.org
History5
- n/aHannibal was originally platted as 'Baresville,' named for founder Jacob Bare, then renamed Hannibal after its post office opened under that name.
- 2010Census recorded Hannibal's population at 411.
- 2020Census recorded Hannibal's population at 314, down 23.6% from 2010.
- 2011The Ohio and Lee Township Water and Sewer Authority signed an agreement with the Ohio Attorney General to address decades of raw/partially-treated sewage discharge into the Ohio River from Duffy…
- 2024The Authority's first new wastewater treatment plant, serving Duffy, began operating in December 2024 ($4.66 million; grand opening Jan. 28, 2025), funded largely by an Ohio Dept. of Development…
Source: en.wikipedia.orgglcap.org
Treatment & pressure
How it is treated
Source is two groundwater wells located in Sardis between Ohio Rt. 7 and the Ohio River (not, as earlier guessed, an unspecified Ohio River alluvial well near Hannibal itself). Water is treated with a sodium hypochlorite (chlorine) solution and pumped to two storage tanks — one outside Hannibal on…
Source: cdn.ymaws.com
Water pressure
Not published — no CCR, pressure-zone map, or engineering report gives a system pressure figure.
What it costs
We found no published water rate schedule for the Authority.
Water quality & impurities2
| Contaminant | Level | Limit | Year |
|---|---|---|---|
| Lead From 2024 CCR lead/copper tap monitoring. | 0 of 10… | action level… | 2024 |
| Copper From 2024 CCR lead/copper tap monitoring. | 0 of 10… | action level… | 2024 |
Source: cdn.ymaws.com
EPA compliance record
Lead at the tap: 90th-percentile result 3.3 ppb in 2025 (action level 15 ppb).
EPA record: no health-based violations since 2015.
3 violations of any kind logged since 2020: 1 for required testing that was missed or reported late; 2 for a report, record or notice that was missing, late or incomplete (the yearly water quality report, a public notice, lead line records).
Projects & plans3
Recent and current work
- Duffy Wastewater Treatment Plant · $4.7 million · 2024 · completed
New recirculating media filter plant with STEP collection system; first of three plants required under the 2011 AG agreement. - Hannibal Wastewater Treatment Plant · 2026-2027 · under construction
Second plant under the same program; village source said completion expected within 24 months of the Duffy plant's Dec. 2024 startup. - Sardis Wastewater Treatment Plant · 2027-2028 · planned
Third and final plant in the Ohio & Lee wastewater program; will serve Sardis only.
Source: glcap.orgnewsandsentinel.com
Supply stress
Hannibal sits on the Ohio River immediately adjacent to the Hannibal Locks and Dam, in an industrial stretch of the upper Ohio Valley; we found no drought or capacity record for this groundwater system.
Sewers
Sanitary
Historically inadequate: raw and partially-treated sewage was discharged into the Ohio River and tributaries from Duffy, Hannibal, and Sardis, prompting a 2011 consent agreement with the Ohio Attorney General. Under that program the Authority is building STEP (septic tank effluent pumping) collection systems feeding two new…
Source: glcap.orgdam.assets.ohio.gov
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 2 ZIP codes
- 43931 · Ohio Township and Hannibal100% of residents
- 43946 · Lee Township and Sardis28% of residents
Also present in 1 more ZIP code
- 43915 · Salem Township and Clarington5% 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
Ohio and Lee Twp Water Authority does not buy water from another system on record; it treats its own source water.
No other system is on record buying water from Ohio and Lee Twp Water Authority.
What the records show about Ohio and Lee Twp Water Authority
Who runs it
EPA's record says Ohio and Lee Twp Water Authority has 675 service connections and serves 1,620 people.
EPA classes it as a community water system, one that serves the same residents all year.
EPA's record says it has substantially implemented source water protection under Ohio's program, dating the program from 2023. Its office telephone on EPA's record is 740-483-1542.
Source: EPA Safe Drinking Water Information System (SDWIS), water system record.
How the water is treated
EPA's treatment table registers these steps for Ohio and Lee Twp Water Authority: chlorine disinfection.
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 Ohio and Lee Twp Water Authority since 2015.
EPA logs 3 violations of any kind since 2020: 1 for required testing that was missed or reported late; 2 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 September 2026).
Lead and copper at the tap
In the sampling period ending December 2025, the 90th-percentile lead result at Ohio and Lee Twp Water Authority was 3.3 ppb, under both the current 15 ppb action level and the 10 ppb level that applies from 2027.
The highest result on file is 11.5 ppb, in the period ending December 2024.
EPA has 9 sampling periods on file for Ohio and Lee Twp Water Authority since 2016, the first ending in 2017; 1 of the 9 periods went above 10 ppb.
Every water system has to inventory its service lines, the pipes from the main to each building. In the inventory Ohio and Lee Twp Water Authority sent EPA, 700 lines are counted.
| Material | Lines |
|---|---|
| Lead | 0 |
| Galvanized, needing replacement | 0 |
| Unknown material | 301 |
| Not lead | 399 |
| All lines | 700 |
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
Ohio EPA's own statewide sampling tested 1 plant of Ohio and Lee Twp Water Authority (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 Ohio and Lee Twp Water Authority as sampled, most recently April 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 Ohio and Lee Twp Water Authority's samples in 2019, the last year it was sampled, was 0 µg/L. The worst yearly average was 4.4 µg/L and the highest single sample was 4.4 µg/L, from 31 samples taken from 2012 to 2019.
For HAA5, the average in the last year sampled was 0 µg/L. The worst yearly average was 64.8 µg/L and the highest single sample was 143 µg/L, from 31 samples. A yearly average over 60 is not itself a violation, because compliance is judged site by site.
| Byproduct | Limit | Latest yearly average | Worst yearly average | Highest sample | Samples |
|---|---|---|---|---|---|
| TTHM | 80 µg/L | 0 µg/L (2019) | 4.4 µg/L | 4.4 µg/L | 31 |
| HAA5 | 60 µg/L | 0 µg/L | 64.8 µg/L | 143 µg/L | 31 |
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
Nitrate: the highest of 8 samples was 6.2 mg/L (as nitrogen) in 2012; in 2019, the last year sampled, the highest was 4.97 mg/L. 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) | 8 | 6.2 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.
Solvents and fuels
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 3 samples each.
| Compound | Limit | Samples | Detected in | Highest result | Samples over limit |
|---|---|---|---|---|---|
| Benzene | 5 µg/L | 3 | 0 of 3 | not detected | 0 |
| Carbon tetrachloride | 5 µg/L | 3 | 0 of 3 | not detected | 0 |
| 1,2-dichloroethane | 5 µg/L | 3 | 0 of 3 | not detected | 0 |
| Trichloroethylene (TCE) | 5 µg/L | 3 | 0 of 3 | not detected | 0 |
| Tetrachloroethylene (PCE) | 5 µg/L | 3 | 0 of 3 | not detected | 0 |
| Vinyl chloride | 2 µg/L | 3 | 0 of 3 | 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.
Farm chemicals and metals
EPA's file holds results for all nine herbicides and metals it checked. Detected: barium in 3 of 3 samples, highest 120 µg/L (limit 2,000). Not detected: atrazine in 2 samples, alachlor in 2 samples, 2,4-D in 3 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 |
| 2,4-D | Farm chemical | 70 µg/L | 3 | 0 of 3 | 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 | 120 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.
Bacteria in the pipes
From 2012 to 2019, 0 of 192 routine total coliform samples taken in the distribution system at Ohio and Lee Twp Water Authority tested positive (0%); in 2019, the last year on file, 0 of 24 did.
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 Ohio and Lee Twp Water Authority 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 0.1 mg/L.
EPA's treatment table lists no fluoridation step at Ohio and Lee Twp Water Authority.
Measured fluoride: none was detected in 3 samples at the plant's entry points 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 Ohio and Lee Twp Water Authority 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.
Photograph
On the map
Show this system's territory on the map — 3 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 OH5600412 (EPA ECHO).
Notable facts: en.wikipedia.org, glcap.org
History: en.wikipedia.org, glcap.org
Water quality: cdn.ymaws.com
Capital projects: glcap.org, newsandsentinel.com
Sewers: glcap.org, dam.assets.ohio.gov
Treatment: cdn.ymaws.com
