Water system
Jefferson Water and Sewer District
EPA ID OH2504012 · Franklin County · 11,294 people served
Jefferson Water and Sewer District treats its own water from Local groundwater wells (Blacklick/eastern Franklin Co.).
The system's record
- Active wells
- 5
- Serves
- 11,294 people · Franklin County
- EPA ID
- OH2504012
5 active wells serving the Blacklick/Jefferson Township area east of Columbus; no SDWIS-documented named aquifer found, so kept as generic 'local wells' per the hypothesis.
About this area's water
Water quality & impurities
EPA compliance record
Lead at the tap: 90th-percentile result 2 ppb in 2025 (action level 15 ppb).
EPA record: no health-based violations since 2015.
1 violation of any kind logged since 2020, 1 of them paperwork (monitoring, reporting, public notice or consumer report).
Present in 1 ZIP code
Serves
No ZIP code has Jefferson Water and Sewer District on record as its main water supplier.
Also present in 1 more ZIP code
- 43004 · Columbus and Blacklick2% 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
Jefferson 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 Jefferson Water and Sewer District.
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
Jefferson Water and Sewer District's own pages: jeffersontownship.org, jwsd.org