Water system
Twin City Water and Sewer District
EPA ID OH7901711 · Tuscarawas County · 9,224 people served · owned by a local government
Twin City Water and Sewer District treats its own water from Tuscarawas River valley aquifer (local wells).
The system's record
- Aquifer
- Tuscarawas River valley aquifer
- Active wells
- 3
- Serves
- 9,224 people · Tuscarawas County
- EPA ID
- OH7901711
About this area's water
Did you know
- Twin City is a genuine two-town utility: the City of Uhrichsville and the Village of Dennison merged their water and sewer systems under Uhrichsville Ordinance 1368 rather than each running its own, and the district is…
- The wellfield sits under less than 10 feet of low-permeability cover with the water table less than 10 feet down, which is why Ohio EPA rates the aquifer as highly susceptible to contamination even though the district's…
- The district treated 329,095,000 gallons in 2025 - about 0.9 million gallons a day from wells rated at 2.25 million gallons a day, leaving roughly half its pumping capacity in reserve.
- The district publishes almost nothing online: its entire public document library is a lead and copper inventory spreadsheet and one sanitary sewer overflow report. Even its water rates are not posted anywhere.
History6
- unknownThe City of Uhrichsville and the Village of Dennison jointly established the Twin City Water & Sewer District under Uhrichsville Ordinance 1368. It is a body politic directed by a five-member Board…
- 2001District issued $2,828,000 in USDA Sewer System Revenue Bonds to finance Ohio EPA-mandated improvements at the wastewater treatment plant.
- 2012New well water treatment plant built at 4194 Indian Hill Road, Uhrichsville, financed by a $4,244,156 Ohio EPA loan repaid over 30 years at 0% from water service charges.
- 2023Ohio EPA sanitary survey completed Aug 1, 2023 noted minor deficiencies in distribution and finished water storage. Federal EPA data also carried a Consumer Confidence Rule non-compliance flagged Feb…
- 2024Flooding hit Uhrichsville around Jan 31, 2024. In April, wet weather produced nine sanitary sewer overflow event-days (April 2-6) at the Lynn Street and Sixth Street lift station outfalls…
- 2025District held an unconditioned license to operate and treated 329,095,000 gallons of water for consumers.
Treatment & pressure
How it is treated
Groundwater only. Three wells at the Twin City Water Well Treatment Plant, 4194 Indian Hill Road, Uhrichsville, are capable of pumping about 2,250,000 gallons per day from a sand-and-gravel aquifer within the Tuscarawas River buried valley aquifer system; the system currently produces about…
Source: twincitywater.com
Water pressure
Not published. Neither the 2025 CCR nor any other public district document reviewed gives psi values or pressure zones.
Source: twincitywater.com
What it costs
No rate schedule is published anywhere online. The district website (twincitywater.com) has only Home, Water Report, Board Meetings, Employment, Contact, Public Reports and Pay…
Water quality & impurities10
| Contaminant | Level | Limit | Year |
|---|---|---|---|
| Total Trihalomethanes (TTHM) Chlorination by-product; no violation. Highest of the district's detections relative to its limit, at 56% of the MCL. | 44.7 (range… ppb | MCL 80 | 2025 |
| Haloacetic Acids (HAA5) Chlorination by-product; no violation. | 5.22 (range… ppb | MCL 60 | 2025 |
| Total Chlorine Disinfectant residual. | 0.82 (range… ppm | MRDL 4 | 2025 |
| Lead (90th percentile) 0 of 20 samples exceeded the action level. | 2.02 ppb | AL 15 | 2023 |
| Copper (90th percentile) 0 of 20 samples exceeded the action level. | 0.198 ppm | AL 1.3 | 2023 |
| Barium Discharge of drilling wastes and metal refineries; erosion of natural deposits. Far below MCL. | 0.038 (range… ppm | MCL 2 | 2025 |
| Combined Radium (226/228) Not detected above the reporting limit. | <0.703 pCi/L | MCL 5 | 2025 |
| Alpha Emitters Not detected above the reporting limit. | <1.34 pCi/L | MCL 15 | 2025 |
| Nitrate (as N) Not detected above the reporting limit. | <0.100 ppm | MCL 10 | 2025 |
| Alachlor Herbicide; not detected above the reporting limit. | <0.30 ppb | MCL 3 | 2024 |
Source: twincitywater.comwtoh.us
EPA compliance record
Lead at the tap: 90th-percentile result 2 ppb in 2023 (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 & plans10
Recent and current work
- Trunk sewer relining (Ohio EPA loan CS392655-02) · $1.5 million · 2006 · completed
Ohio EPA loan at 1% interest. - Rotary fan sludge press (Ohio EPA loan CS391442-0004) · $383,411 · 2010 · completed
Wastewater plant solids handling. - New well water treatment plant, 4194 Indian Hill Road (Ohio EPA loan FS391442-0008) · $4.2 million · 2012 · completed
Repaid over 30 years at 0% interest from water service charges. This is the plant described in the current CCR. - Ultraviolet disinfection system (OPWC loan CN31P) · $299,000 · 2012 · completed
Ohio Public Works Commission loan, 20 years at 0% interest. - Sixth Street lift station equipment replacement (Ohio EPA loan CS391442-0010) · $1.9 million · 2013 · completed
Intended to prevent sewage overflows during wet-weather events; recorded as complete at Dec 31, 2019. The same lift station was nonetheless an overflow point… - Water transmission main between the new well plant and the storage tank (Ohio EPA loan FS391442-0012) · $1.2 million · 2015 · completed
Approved amount was $1,237,430, repaid over 30 years at 1.57% from water service charges - not the $1.5 million reported in local coverage of the application. - Eastport Avenue Improvements Phase II · $800,000 · 2018
Funding package of a $150,000 OPWC grant, a $150,000 OPWC 0% loan, a $300,000 Tuscarawas County Critical Infrastructure Grant and a $200,000 Appalachian… - Asset Management Plan (Ohio EPA loan FS391442-0014) · $2,163 · 2018
0% five-year loan plus $10,000 in principal forgiveness from Ohio EPA.
Source: ohioauditor.gov
Planned or needed
- Lead and copper service line inventory · 2024 · completed
Published as 'LeadCopper Inventory 2024' (an .xlsx file) on the district's Public Reports page, as required by the Lead and Copper Rule Revisions; also… - No published capital improvement plan
The district publishes only two documents on its Public Reports page - the 2024 lead/copper inventory and the 2024 SSO annual report package. There is no…
Sewers
Sanitary
The district runs the joint sanitary system for Dennison and Uhrichsville plus parts of Mill and Union Townships, and operates the Twin City WWTP (Ohio NPDES permit 0PD00015), which discharges to Stillwater Creek. Offices at 308 Grant Street, Dennison; the Water & Sewer Board meets the third Thursday of each month at the sewer office…
Storm
No stormwater utility, fee, or separate storm system information is published by the district. Flooding hit Uhrichsville around Jan 31, 2024, and the April 2024 sanitary sewer overflows were wet-weather driven, which points to significant inflow and…
Sourcesverified
Compiled from the utility's own reports and public records, then independently re-checked against primary sources.
Main supplier in 2 ZIP codes
Serves
Main water supplier in 2 ZIP codes
- 44683 · Uhrichsville70% of residents
- 44621 · Dennison58% 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
Twin City Water and Sewer District does not buy water from another system on record; it treats its own source water.
No other system is on record buying water from Twin City Water and Sewer District.
What the records show about Twin City Water and Sewer District
Who runs it
EPA's record describes Twin City Water and Sewer District as owned by a local government. It has 3,600 service connections and serves 9,224 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 740-922-1460.
Source: EPA Safe Drinking Water Information System (SDWIS), water system record.
How the water is treated
EPA's treatment table registers these steps for Twin City Water and Sewer District: chlorine disinfection and sand or media filtration.
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 Twin City Water and Sewer District since 2015.
EPA logs 1 violation of any kind 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).
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 2023, the 90th-percentile lead result at Twin City Water and Sewer District was 2 ppb, under both the current 15 ppb action level and the 10 ppb level that applies from 2027.
The highest result on file is 3.3 ppb, in the period ending December 2018.
EPA has 6 sampling periods on file for Twin City Water and Sewer District 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 Twin City Water and Sewer District sent EPA, 3,807 lines are counted.
| Material | Lines |
|---|---|
| Lead | 45 |
| Galvanized, needing replacement | 14 |
| Unknown material | 1,543 |
| Not lead | 2,205 |
| All lines | 3,807 |
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
EPA's fifth national round of testing (UCMR 5) took 2 samples of the water entering the pipes of Twin City Water and Sewer District in 2023 and measured 29 PFAS. No PFAS was detected, PFOA and PFOS (federal limit 4 ng/L each) among them.
Ohio EPA's own statewide sampling tested 1 plant of Twin City Water and Sewer District (latest sample August 2020). Not one of the six PFAS tested (PFOA, PFOS, PFHxS, PFNA, GenX and PFBS) was detected.
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 Twin City Water and Sewer District's samples in 2019, the last year it was sampled, was 15 µg/L. The worst yearly average was 49.9 µg/L and the highest single sample was 82 µg/L, from 22 samples taken from 2012 to 2019.
For HAA5, the average in the last year sampled was 8.6 µg/L. The worst yearly average was 32.5 µg/L and the highest single sample was 56.6 µg/L, from 22 samples.
| Byproduct | Limit | Latest yearly average | Worst yearly average | Highest sample | Samples |
|---|---|---|---|---|---|
| TTHM | 80 µg/L | 15 µg/L (2019) | 49.9 µg/L | 82 µg/L | 22 |
| HAA5 | 60 µg/L | 8.6 µg/L | 32.5 µg/L | 56.6 µg/L | 22 |
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 27 samples was 0.71 mg/L (as nitrogen) in 2012; 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: the highest of 5 samples was 3.5 µg/L (limit 10); detections averaged 3.5; none over the limit.
| Contaminant | Samples | Highest result | Limit | Samples over limit |
|---|---|---|---|---|
| Nitrate (as nitrogen) | 27 | 0.71 mg/L | 10 mg/L | 0 |
| Arsenic | 5 | 3.5 µg/L | 10 µg/L | 0 |
| Combined radium | 4 | not detected | 5 pCi/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 14 samples each.
| Compound | Limit | Samples | Detected in | Highest result | Samples over limit |
|---|---|---|---|---|---|
| Benzene | 5 µg/L | 14 | 0 of 14 | not detected | 0 |
| Carbon tetrachloride | 5 µg/L | 14 | 0 of 14 | not detected | 0 |
| 1,2-dichloroethane | 5 µg/L | 14 | 0 of 14 | not detected | 0 |
| Trichloroethylene (TCE) | 5 µg/L | 14 | 0 of 14 | not detected | 0 |
| Tetrachloroethylene (PCE) | 5 µg/L | 14 | 0 of 14 | not detected | 0 |
| Vinyl chloride | 2 µg/L | 14 | 0 of 14 | 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 8 of the nine herbicides and metals it checked. Detected: chromium in 2 of 6 samples, highest 1.24 µg/L (limit 100); barium in 4 of 5 samples, highest 44.6 µg/L (limit 2,000); selenium in 2 of 5 samples, highest 3.32 µg/L (limit 50). Not detected: atrazine in 9 samples, alachlor in 9 samples, cadmium in 6 samples, mercury in 5 samples, thallium in 5 samples.
| Substance | Kind | Limit | Samples | Detected in | Highest result | Samples over limit |
|---|---|---|---|---|---|---|
| Atrazine | Farm chemical | 3 µg/L | 9 | 0 of 9 | not detected | 0 |
| Alachlor | Farm chemical | 2 µg/L | 9 | 0 of 9 | not detected | 0 |
| Chromium | Metal | 100 µg/L | 6 | 2 of 6 | 1.24 µg/L | 0 |
| Cadmium | Metal | 5 µg/L | 6 | 0 of 6 | not detected | 0 |
| Barium | Metal | 2,000 µg/L | 5 | 4 of 5 | 44.6 µg/L | 0 |
| Mercury | Metal | 2 µg/L | 5 | 0 of 5 | not detected | 0 |
| Selenium | Metal | 50 µg/L | 5 | 2 of 5 | 3.32 µg/L | 0 |
| Thallium | Metal | 2 µg/L | 5 | 0 of 5 | 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 961 routine total coliform samples taken in the distribution system at Twin City Water and Sewer District tested positive (0%); in 2019, the last year on file, 0 of 120 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 Twin City Water and Sewer District has fluoride from natural sources, but at a level below what is recommended for preventing tooth decay, and does not adjust it.
EPA's treatment table lists no fluoridation step at Twin City Water and Sewer District.
Measured fluoride: none was detected in 5 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.
Lithium
Lithium was not detected in 2 UCMR 5 samples at Twin City Water and Sewer District, last sampled in 2023 (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.
Water and sewer bills
Ohio EPA's 2023 rate survey puts the water bill at Twin City Water and Sewer District for a household using 5,000 gallons a month at $504 a year, about $42 a month.
The sewer bill in the same survey is $486 a year at 5,000 gallons a month.
| Use | Water, per year | Sewer, per year |
|---|---|---|
| 2,500 gallons a month | $441 | $381 |
| 5,000 gallons a month | $504 | $486 |
| 8,000 gallons a month | $504 | $486 |
The survey lists it as “Twin City Water & Sewer District”. These are inside-city rates and annual bills at the use shown.
Source: Ohio EPA 2023 Sewer and Water Rate Survey (Ohio State University, May 2025).
How well the service area is mapped
EPA estimated the service area of Twin City Water and Sewer District 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 8,475 residents are inside the boundary, 92% of the 9,224 people Twin City Water and Sewer District 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 OH7901711 (EPA ECHO).
Twin City Water and Sewer District's own pages: pubs.usgs.gov
Notable facts: twincitywater.com, ohioauditor.gov, twincitywater.com, codelibrary.amlegal.com
History: twincitywater.com, ohioauditor.gov, wtoh.us, codelibrary.amlegal.com
Water quality: twincitywater.com, wtoh.us
Planned work: twincitywater.com, twincitywater.com
Water pressure: twincitywater.com
Capital projects: ohioauditor.gov
Rates: twincitywater.com, twincitywater.com, ohioauditor.gov
Sewers: twincitywater.com, twincitywater.com, twincitywater.com, ohioauditor.gov
Treatment: twincitywater.com
Supply stress: twincitywater.com