Water system
Northwestern W and SD - Co. Rd P
EPA ID OH3539212 · Henry County · 440 people served · owned by a local government
Northwestern W and SD - Co. Rd P buys its water from Napoleon City.
The system's record
- Water bodies
- Maumee River
- Raw intakes
- Wauseon MG Reservoir
Maumee River - Serves
- 8,858 people · Henry County
- EPA ID
- OH3500811
Napoleon's own intakes draw from the Maumee River; the city also has a pipeline to Wauseon's reservoirs used as an emergency/backup source (e.g., during the 2026 fertilizer spill) and sometimes blended in.
About this area's water Napoleon City
Did you know
- Napoleon's plant pumped 388 million gallons of raw Maumee River water uphill to the Wauseon reservoir in 2025 - and the pipe can be reversed to pull that stored water back by gravity when the river is unusable, which is…
- The city's water plant is one of fewer than ten in Ohio using ultraviolet disinfection, added as part of the 2015-2018 conversion to reverse-osmosis membrane softening.
- Campbell's largest soup plant is in Napoleon, turning out more than 619 million cans of soup, 678 million containers of V8 and 136 million jars of Prego and Pace a year.
- A July 2026 fertilizer and ammonia spill upstream on Huston Creek killed an estimated 18,000-20,000 fish along about 11 miles of the Maumee - the same river the city drinks from - after bacteria consuming the ammonia…
Source: napoleonohio.comnapoleonohio.comthecampbellscompany.com
History6
- 1992City installed its current Maumee River raw-water intake facility on West Riverview Ave.
- 1997-1998$3.8 million wastewater plant expansion raised peak hydraulic capacity to 7.5 MGD.
- 20102.5 million-gallon equalization basin and UV disinfection units added at the wastewater plant to capture and treat wet-weather/combined-sewer flow.
- 2015-2018Three-year, $17.8 million rehabilitation converted the lime-soda softening plant to a nanofiltration/reverse-osmosis membrane softening facility with UV disinfection; completed fall 2018.
- 2021-2025Multi-year, roughly $12 million renovation of the wastewater treatment plant (new headworks building, third primary settling tank, recirculation building and pumps, screw presses) completed…
- 2026A July liquid-fertilizer (ammonia) release into Huston Creek in Flatrock Township, followed by failure of containment dams on July 11, killed an estimated 18,000-20,000 fish over about 11 miles of…
Treatment & pressure
How it is treated
Surface water from a Maumee River intake. Pretreatment with sodium permanganate and carbon in contact basins; coagulation with aluminum chlorohydrate; four-stage vertical flocculation; sedimentation with plate settlers; rapid sand filters; 1-micron cartridge filters; nanofiltration and…
Source: napoleonohio.comnapoleonohio.com
Water pressure
Not published. System storage is two underground clearwells (150,000 and 1,000,000 gallons) plus a north tower (750,000 gallons) and a south tower (200,000 gallons), with three…
Source: napoleonohio.com
What it costs
$12.93 per 1,000 gallons
Typical household bill about $66 a month for water.
Codified Ordinance 931.07 (Ord. 086-20, passed 2-1-21), rate steps effective through the 2024 schedule, which the code library shows as current: inside-corporation commodity…
Water quality & impurities10
| Contaminant | Level | Limit | Year |
|---|---|---|---|
| Total Trihalomethanes (TTHM) range of detections 22.90-78.6 ppb; no violation, but the highest single result is close to the standard | 60.93 ppb | 80 ppb MCL | 2025 |
| Haloacetic Acids (HAA5) range printed as 6.2-15.8 ppb; no violation | 16.08 ppb | 60 ppb MCL | 2025 |
| Nitrate range 0.028-6.85 ppm; peak is about two-thirds of the standard, reflecting Maumee River farm runoff | 6.85 ppm | 10 ppm MCL | 2025 |
| Atrazine range 0-0.64 ppb; runoff from row-crop herbicide | 0.64 ppb | 3 ppb MCL | 2025 |
| Fluoride range 0.96-1.12 ppm; added for dental health | 1.12 ppm | 4 ppm MCL | 2025 |
| Barium range 0-0.030 ppm | 0.030 ppm | 2 ppm MCL | 2025 |
| Total chlorine range 1.37-1.72 ppm | 1.55 ppm | 4 ppm MRDL | 2025 |
| Copper (90th percentile) range 0-0.041 ppm; 0 of 20 sites above the action level | 0.021 ppm | 1.3 ppm action… | 2025 |
| Lead (90th percentile) 0 of 20 sites above the action level | <2 ppb | 15 ppb action… | 2025 |
| Turbidity highest recorded 0.11 NTU; 100% of monthly samples met the limit | 0.11 NTU | 0.3 NTU in 95%… | 2025 |
Source: napoleonohio.com
EPA compliance record · Northwestern W and SD - Co. Rd P
Lead at the tap: 90th-percentile result 0 ppb in 2025 (action level 15 ppb).
EPA health-based violations since 2015:
- 2018Total trihalomethanes (TTHM) · exceeded a maximum contaminant level · measured 0.106 MG/L (limit 0.08 MG/L) · returned to compliance
- 2017Total trihalomethanes (TTHM) · exceeded a maximum contaminant level · measured 0.107 MG/L (limit 0.08 MG/L) · returned to compliance
- 2016Total trihalomethanes (TTHM) · exceeded a maximum contaminant level · measured 0.098 MG/L (limit 0.08 MG/L) · returned to compliance
EPA's count of 8 includes 5 repeat quarterly violations of the problems listed.
1 violation of any kind logged since 2020, 1 of them paperwork (monitoring, reporting, public notice or consumer report).
EPA compliance record · Napoleon City (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.
Projects & plans3
Recent and current work
- Water treatment plant conversion to reverse-osmosis/nanofiltration membrane softening with UV · $18 million · 2015-2018 · completed
Three-phase rehabilitation of the former lime-soda softening plant; cost reported at the 2019 unveiling. - Wastewater treatment plant 2.5 MG equalization basin, 30 MGD screw pump station, 10 MGD UV disinfection and… · 2010 · completed
Ohio EPA-mandated wet-weather storage that allows combined-sewer overflow to receive primary-equivalent treatment and UV rather than going straight to the… - Wastewater treatment plant renovation (headworks building, third primary settling tank, recirculation… · $12 million · 2021-2025 · completed
Construction began June 2021; cost reported by local press (Northwest Signal); the article itself was rate-limited during verification, so treat the figure as…
Supply stress
Ohio EPA treats all Ohio surface water as highly susceptible to contamination, and Napoleon's CCR says the drinking water source protection area contains agriculture, septic systems, oil and gas activity, combined sewer overflows, wastewater discharges, roadways and railways. The practical exposure is upstream events on the Maumee: the…
Source: napoleonohio.comnorthwestsignal.netdam.assets.ohio.gov
Sewers
Sanitary
City wastewater treatment plant at 735 E. Washington St., built 1958 and rehabilitated in 1982, expanded in 1997-98 for $3.8 million. Average daily flow 2.6 MGD, maximum daily 4.7 MGD, peak hydraulic capacity 7.5 MGD. Treatment is screening, primary settling, two 55-foot trickling-filter biotowers, three final settling tanks (761,240…
Storm
Partly combined: the city's west and south sides have combined sewers, and Napoleon files an annual combined sewer overflow public notification report with Ohio EPA. The 2.5 MG equalization basin with integrated 10 MGD UV lets overflow be treated instead of…
Sourcesverified
Compiled from the utility's own reports and public records, then independently re-checked against primary sources.
Present in 1 ZIP code
Serves
No ZIP code has Northwestern W and SD - Co. Rd P on record as its main water supplier.
Also present in 1 more ZIP code
- 43545 · Napoleon1% 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
Northwestern W and SD - Co. Rd P buys its water from Napoleon City.
No other system is on record buying water from Northwestern W and SD - Co. Rd P.
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