Water system
Franklin Public Water System
EPA ID OH8300412 · Warren County · 11,690 people served
Franklin Public Water System treats its own water from Great Miami Buried Valley Aquifer (own wells).
The system's record
- Aquifer
- Great Miami Buried Valley Aquifer
- Active wells
- 4
- Serves
- 11,690 people · Warren County
- EPA ID
- OH8300412
Franklin sources its water from 4 wells in the Great Miami Buried Valley Aquifer, with emergency backup connections to Springboro and Warren County.
About this area's water

Did you know
- Franklin opened what was considered the world's first garbage-recycling plant in 1971 - a Black Clawson Company facility that pulled metals out of solid waste and spun recovered paper fiber into roofing material.
- Franklin is literally the boundary marker on a federal aquifer designation: EPA's 1988 Sole Source Aquifer determination for the Buried Valley Aquifer System-South runs to a hydrodynamic boundary 'just south of the City…
- Franklin's tap water runs 22 grains per gallon hard - the city publishes the number specifically so residents can set their water softeners.
- The city keeps its emergency lifeline to Springboro alive by flushing about 8,000 gallons through it in each direction every six months, so the connection works the day it is needed.
- Franklin's water bill is priced in 333-cubic-foot units - about 2,491 gallons - and is purely volumetric with no minimum charge at all: use 500 gallons in a month and you pay for 500 gallons.
History6
- 1796Franklin founded by General William C. Schenck on the Great Miami River; incorporated 1814 and became a city in 1951.
- 1913The town was devastated by the Great Flood of March 1913 when the Great Miami River overflowed its banks.
- 1971Franklin opened what was considered the world's first garbage-recycling plant, designed and built by the Black Clawson Company; it recovered metals from solid waste and turned recovered paper fiber…
- 1988EPA Region V determined (final determination dated June 17, 1988) that the Buried Valley Aquifer System-South is the sole or principal drinking water source for about 650,000 residents of Butler…
- 2003Ohio conducted the source water assessment behind Franklin's Source Water Assessment Protection Plan, rating the wellfield aquifer as highly susceptible to contamination.
- 2023Franklin sampled under the fifth Unregulated Contaminant Monitoring Rule (UCMR 5), detecting nine PFAS compounds plus lithium.
Treatment & pressure
How it is treated
Franklin draws raw groundwater from five high-production wells in the Great Miami Buried Valley Aquifer (well screens 45-80 feet deep, water table less than 20 feet down) and treats it at a city-owned 5 MGD plant with iron and manganese filtration, plus fluoridation and chlorination. Finished water…
Source: franklinohio.orgcms2.revize.com
Water pressure
Not published. No service pressure or pressure-zone figures appear in the city's water pages or CCR; the only related infrastructure published is four water towers and 67+ miles…
Source: franklinohio.orgcms2.revize.com
What it costs
$7.01 per 1,000 gallons
Typical household bill about $28 a month for water.
City of Franklin rate and fee schedule (Appendix A, March 2026) as posted by the Utility Billing Division: water $17.47 per 333 cubic feet, sewer $22.51 per 333 cubic feet…
Water quality & impurities10
| Contaminant | Level | Limit | Year |
|---|---|---|---|
| Trichloroethylene Solvent from metal degreasing and other industry, detected in a shallow, highly susceptible sand-and-gravel aquifer.… | 0.08 ppb | 5.0 | 2025 |
| Perfluorooctanesulfonic acid (PFOS) UCMR 5 sampling; range 0.0022-0.0041 ppb, average 0.0031 ppb. The maximum detection sits essentially at the 4.0 ppt MCL… | 0.0041 ppb | 0.004 ppb (4.0… | 2023 |
| Perfluorooctanoic acid (PFOA) UCMR 5; range 0.0014-0.0017 ppb, average 0.00155 ppb. Seven other PFAS were also detected at trace levels: PFHxA, PFBS… | 0.0017 ppb | 0.004 ppb (4.0… | 2023 |
| Lithium Range ND-5.46 ppb, average 2.73 ppb; unregulated contaminant monitored to inform possible future regulation. | 5.46 ppb | no federal MCL… | 2023 |
| Total trihalomethanes (TTHM) Range 12.5-39.7 ppb. | 39.7 ppb | 80 | 2025 |
| Haloacetic acids (HAA5) Range ND-4.3 ppb - very low, as expected for filtered groundwater with little organic carbon. | 4.3 ppb | 60 | 2025 |
| Nitrate (as nitrogen) Runoff from fertilizer use, leaching from septic tanks and sewage; a standing concern for a shallow aquifer under… | 1.74 ppm | 10 | 2025 |
| Fluoride Range 0.81-1.04 ppm; added for dental health. | 0.89 ppm | 4.0 | 2025 |
| Barium Erosion of natural deposits. | 0.130 ppm | 2.0 | 2025 |
| Arsenic Erosion of natural deposits. | 0.5 ppb | 10 | 2025 |
Source: cms2.revize.comfranklinohio.org
EPA compliance record
Lead at the tap: 90th-percentile result 2.1 ppb in 2024 (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).
Projects & plans4
Recent and current work
- 12-inch watermain connection project · $959,752 · 2025-2026 · under construction
Replaces about 5,690 linear feet of 4- to 12-inch water main plus 15 fire hydrants and 83 public water service lines on Main Street, Anderson Street, Riley… - City-wide water meter replacement · 2026 · under construction
End-of-life residential and commercial meters replaced by contractor VEPO Metering, scheduled March-July 2026. No cost to residents but replacement is… - 2026 hydrant flushing campaign · 2026 · planned
Routine distribution-system maintenance announced by the city on August 12, 2026. No cost published.
Source: franklinohio.orgfranklinohio.orgfranklinohio.org
Planned or needed
- Additional PFAS compliance monitoring under the 2024 federal PFAS rule · 2026-2027 · planned
Franklin partially satisfied the rule through UCMR 5 and states it will collect additional samples in 2026 to fully meet the April 26, 2027 monitoring…
Source: cms2.revize.com
Supply stress
Franklin's supply is abundant but exposed. Its wells tap the Great Miami Buried Valley Aquifer, the glacial sand-and-gravel system EPA designated a Sole Source Aquifer in June 1988 for roughly 650,000 people across five southwestern Ohio counties - Franklin sits right at the northern edge of the designated area, on a hydrodynamic…
Sewers
Sanitary
Franklin does not treat its own wastewater. Flow goes to a Regional Wastewater Treatment Plant owned and operated by Veolia that also serves Carlisle, Germantown, Franklin Township, Warren County and Montgomery County. The city's Sewer Division maintains over fifty miles of sanitary sewer, over five miles of sanitary force main, and four…
Storm
Franklin runs a self-supporting stormwater utility charged on relative impervious area: $7.00 residential, $7.00 per 2,611 square feet of impervious surface for nonresidential. The system covers 75 miles of storm pipes plus catch basins, city-owned ditch…
Sourcesverified
Compiled from the utility's own reports and public records, then independently re-checked against primary sources.
Main supplier in 1 ZIP code
Serves
Main water supplier in 1 ZIP code
- 45005 · Franklin Township and Franklin50% 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
Franklin Public Water System does not buy water from another system on record; it treats its own source water.
1 system on record buys water from Franklin Public Water System: Carlisle City.
Photograph
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
Franklin Public Water System's own pages: en.wikipedia.org, dam.assets.ohio.gov
Notable facts: en.wikipedia.org, dam.assets.ohio.gov, franklinohio.org, cms2.revize.com
History: en.wikipedia.org, dam.assets.ohio.gov, cms2.revize.com, franklinohio.org
Water quality: cms2.revize.com, franklinohio.org
Planned work: cms2.revize.com
Water pressure: franklinohio.org, cms2.revize.com
Capital projects: franklinohio.org, franklinohio.org, franklinohio.org
Rates: franklinohio.org, dam.assets.ohio.gov
Sewers: franklinohio.org, franklinohio.org, franklinohio.org, dam.assets.ohio.gov
Treatment: franklinohio.org, cms2.revize.com
Supply stress: dam.assets.ohio.gov, cms2.revize.com, franklinohio.org