Water system
Northwestern W and SD - Toledo Svc Area
EPA ID OH8752812 · Wood County · 19,758 people served · owned by a local government
Northwestern W and SD - Toledo Svc Area buys its water from Toledo City Of.
The system's record
- Water bodies
- Lake Erie
- Raw intakes
- Toledo Lake Erie
- Serves
- 360,000 people · Lucas County
- EPA ID
- OH4801411
Toledo's Collins Park WTP draws directly from Lake Erie and also serves as wholesale supplier to numerous surrounding systems.
About this area's water
Did you know
- This service area owns not one filter, pump station intake or clarifier for treatment: 100% of its water arrives already finished from Toledo's Collins Park plant, and the district's job is transmission mains, valves…
- Collins Park is the largest water-softening plant on Lake Erie, filtering an average of about 75 million gallons a day, and it can push 181 million gallons a day at full design loading, with 70 million gallons of…
- In 2014 a mat of blue-green algae parked itself over an intake pipe built in 1942 and took drinking water away from roughly half a million people for three days.
- The district grew out of the 1993 reorganization of the Wood County Sanitary Engineer's water and sewer operations and now serves over 20,000 customers across five counties (Wood, Sandusky, Henry, Hancock and Lucas)…
- The district runs 13 'WaterShed' vending machines that dispense public drinking water, and hands out $500 WATER grants to local teachers for water-focused classroom projects.
Source: nwwsd.orgtoledo.oh.govnwwsd.org
History5
- 1993The district was established as the Wood County Regional Water and Sewer District, chartered under ORC 6119, taking over the water and sewer operations of the Wood County Sanitary Engineer…
- 1942Toledo's two-story Lake Erie water intake, the source of this service area's water, was constructed. It sits less than a mile from the City of Oregon's intake and farther offshore, beyond the normal…
- 2002The district opened its main facility on Middleton Pike in Bowling Green; it was expanded in 2013.
- 2014Collins Park operators reported an elevated microcystin sample to Ohio EPA on August 1; a harmful algal bloom had settled over the intake and finished-water microcystin reached 3.19 micrograms per…
- 4Q 2022Under OAC 3745-81-24, the Toledo Service Area triggered into mandatory disinfection-byproduct sampling at its designated master meter locations because of exceedances of the MCL and/or operational…
Treatment & pressure
How it is treated
The district owns no treatment plant in this service area; it buys fully treated water from the City of Toledo and distributes it. Toledo's plant (Collins Park) draws Lake Erie surface water through a 108-inch line from a 1942 intake and treats it by coagulation, flocculation, lime softening…
Source: nwwsd.orgtoledo.oh.gov
Water pressure
Not published. No psi figure appears in the district's CCR, rate materials or project documents for the Walbridge / Stony Ridge / Luckey service area.
What it costs
$6.05 per 1,000 gallons
Typical household bill about $45 a month for water.
CAUTION: these are DISTRICT charges only. Effective January 1, 2026 the district bills an average residential customer using 7,500 gallons a month $45.34 for water (up $0.35 from…
Source: nwwsd.orgtoledo.oh.gov
Water quality & impurities10
| Contaminant | Level | Limit | Year |
|---|---|---|---|
| Total Trihalomethanes (TTHM) No violation on the compliance average, but individual detections ranged 16.5-84.2 ppb, above the 80 ppb MCL at the… | 55.8 ppb | 80 ppb MCL | 2025 |
| Haloacetic Acids (HAA5) Range 6.3-28.8 ppb. No violation. Master-meter LRAAs were 7.0 and 22.4 ppb. | 18.9 ppb | 60 ppb MCL | 2025 |
| Total chlorine Range 1.03-1.31 ppm. | 1.13 ppm | MRDL 4 ppm | 2025 |
| Lead (90th percentile) 0 of 31 samples exceeded the action level. | <4 ppb | 15 ppb action… | 2025 |
| Copper (90th percentile) 0 of 31 samples exceeded the action level. | 0.023 ppm | 1.3 ppm action… | 2025 |
| Nitrate City of Toledo finished water, range <0.10-2.36 ppm. | 1.22 ppm | 10 ppm MCL | 2025 |
| Fluoride City of Toledo finished water, range 0.98-1.06 ppm. | 1.00 ppm | 4 ppm MCL | 2025 |
| Turbidity Highest Toledo result; 100% of monthly samples met the limit. | 0.23 NTU | TT: 0.3 NTU in… | 2025 |
| PFOA UCMR5 sampling of Toledo finished water; average 1.2 ppt, well under the 2024 federal MCL. | 0.0012 ppb | 4.0 ppt (0.004… | 2025 |
| PFOS UCMR5 sampling of Toledo finished water; average 1.0 ppt, under the federal MCL. | 0.0010 ppb | 4.0 ppt (0.004… | 2025 |
Source: nwwsd.org
EPA compliance record
Lead at the tap: 90th-percentile result 0 ppb in 2025 (action level 15 ppb).
EPA record: no health-based violations since 2015.
EPA compliance record · Toledo City Of (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 & plans5
Recent and current work
- WL-100/101 Valve Improvements · 2025-2026 · under construction
Replacement or rehabilitation of valves and appurtenances on the district's 20-inch and 30-inch prestressed concrete cylinder pipe transmission water mains in… - 100 Area Water Line Improvements (Oregon Road and Sheffield Place) · 2025 · completed
Water line improvements in the district's 100 area. No cost published. - Tracy Road Waterline Replacement (Florence Ave. to Wales Rd.) · 2024 · completed
Waterline replacement in the Northwood/Walbridge corridor; a 2026 update shows continuing waterline work closing Tracy Road from Wales Road to McNerney Drive.…
Source: nwwsd.orgnwwsd.orgnwwsd.org
Planned or needed
- Water service line material identification excavations · 2026 · under construction
District crews excavating to identify water service line materials in Northwood, Rossford, Weston, McComb and McClure under the federal Lead and Copper Rule… - Belmont Area Water Main Improvements (WL#146) · 2026 · planned
Listed on the district's 2026 project page. Outside the immediate Walbridge/Stony Ridge/Luckey area; no cost or schedule published.
Supply stress
Western Lake Erie is the district's single point of failure. Ohio EPA treats all surface waters as susceptible by nature, and the Toledo intake's critical assessment zone is specifically identified as vulnerable to spills from commercial shipping and recreational boating, river dredging disposal sediments, air deposition, point and…
Sewers
Sanitary
The district owns and operates the sanitary collection system in this service area but does not treat the wastewater. Sewage from Rossford, Walbridge, Northwood, Ottawa Hills and several townships goes to the City of Toledo's Bay View Water Reclamation Plant, which reached a peak hydraulic capacity of 400 million gallons per day after…
Storm
Not documented. No district stormwater utility, fee or combined-sewer detail for the Walbridge, Stony Ridge or Luckey area could be substantiated. Toledo charges its own city residents $3.80 a month for single-family stormwater, but that applies inside…
Sourcesverified
Compiled from the utility's own reports and public records, then independently re-checked against primary sources.
Main supplier in 3 ZIP codes
Serves
Main water supplier in 4 ZIP codes
- 43463 · Troy Township and Stony Ridge100% of residents
- 43443 · Luckey97% of residents
- 43465 · Walbridge95% of residents
- 43460 · Rossford8% of residents
Also present in 6 more ZIP codes
- 43551 · Perrysburg22% of residents
- 43447 · Lake Township and Millbury13% of residents
- 43450 · Pemberville12% of residents
- 43430 · Genoa2% of residents
- 43605 · Toledo1% of residents
- 43619 · Northwood1% 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 - Toledo Svc Area buys its water from Toledo City Of.
No other system is on record buying water from Northwestern W and SD - Toledo Svc Area.
Photograph
On the map
Show this system's territory on the map — 10 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
Northwestern W and SD - Toledo Svc Area's own pages: toledo.oh.gov
Notable facts: nwwsd.org, toledo.oh.gov, nwwsd.org
History: nwwsd.org, nwwsd.org, circleofblue.org, nrdc.org
Water quality: nwwsd.org
Planned work: nwwsd.org, nwwsd.org
Capital projects: nwwsd.org, nwwsd.org, nwwsd.org
Rates: nwwsd.org, toledo.oh.gov
Sewers: toledo.oh.gov, nwwsd.org, toledo.oh.gov
Treatment: nwwsd.org, toledo.oh.gov
Supply stress: nwwsd.org, nrdc.org, circleofblue.org