Water system
Northwest Regional Water District
EPA ID OH7300003 · Scioto County · 11,059 people served · owned by a local government
Northwest Regional Water District buys its water from Scioto Co. Regional Water District #1.
The system's record
- Aquifer
- Teays Valley Aquifer
- Active wells
- 12
- Serves
- 13,820 people · Scioto County
- EPA ID
- OH7300212
12 active wells draw from the Teays Valley buried-valley aquifer near St. Rt. 348; treated at a lime-softening plant.
About this area's water
Water quality & impurities
EPA compliance record
Lead at the tap: 90th-percentile result 2.8 ppb in 2025 (action level 15 ppb).
EPA record: no health-based violations since 2015.
EPA compliance record · Scioto Co. Regional Water District #1 (treats the water)
Lead at the tap: 90th-percentile result 1.1 ppb in 2025 (action level 15 ppb).
EPA record: no health-based violations since 2015.
2 violations of any kind logged since 2020, 2 of them paperwork (monitoring, reporting, public notice or consumer report).
Present in 4 ZIP codes
Serves
Main water supplier in 2 ZIP codes
- 45652 · Rush Township and Mc Dermott36% of residents
- 45648 · Valley Township and Lucasville16% of residents
Also present in 2 more ZIP codes
- 45663 · Washington Township and West Portsmouth11% of residents
- 45662 · Portsmouth2% 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
Northwest Regional Water District buys its water from Scioto Co. Regional Water District #1.
No other system is on record buying water from Northwest Regional Water District.
On the map
Show this system's territory on the map — 4 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