Water system
Sidney City
EPA ID OH7501214 · Shelby County · 20,614 people served · owned by a local government
Sidney City treats its own water from Groundwater wells (Great Miami River valley + Washington Twp) with Tawawa Creek/Miami R. backup.
The system's record
- Aquifer
- Great Miami River valley (sand and gravel) aquifer
- Water bodies
- Tawawa Creek, Great Miami River
- Raw intakes
- Sidney Tawawa Creek
Sidney Miami River
Sidney Miami River Int - Active wells
- 7
- Serves
- 20,614 people · Shelby County
- EPA ID
- OH7501214
SDWIS lists Sidney as SW, but the city's stated current strategy makes groundwater (4 bedrock wells along the Great Miami River plus the Washington Township sand-and-gravel wellfield) the primary source, with the Tawawa Creek and Great Miami River surface intakes serving as secondary/backup because…
About this area's water

What it costs
$9.21 per 1,000 gallons
Typical household bill about $19 a month for water.
Codified Ordinance 911.01 sets the water user charge at $6.89 per 100 cubic feet; at 748 gallons per 100 cubic feet that converts to about $9.21 per 1,000 gallons. (That ordinance…
Water quality & impurities
EPA compliance record
Lead at the tap: 90th-percentile result 0 ppb in 2023 (action level 15 ppb).
EPA health-based violations since 2015:
- 2024Total trihalomethanes (TTHM) · exceeded a maximum contaminant level · measured 0.088 MG/L (limit 0.08 MG/L) · returned to compliance
3 violations of any kind logged since 2020, 2 of them paperwork (monitoring, reporting, public notice or consumer report).
Projects & plans7
Recent and current work
- Washington Township wellfield and 9-mile, 30-inch raw water transmission main · $22 million · 2017 · completed
A 10 MGD wellfield replacing heavy reliance on surface intakes. The $22 million figure is a consultant's estimate to develop the wellfield and install the… - Wastewater treatment plant improvement project · $12 million · 2017 · completed
Raised WWTP capacity from 13.5 to 14.0 MGD, added UV disinfection, safety and reliability improvements and back-up generation for the full treatment process… - Great Miami River bedrock well rehabilitation · 2000… · completed
Two rounds of work to restore four fractured-bedrock wells whose yield had fallen from over 1,000,000 gpd to 600,000-800,000 gpd. No cost figure is published… - Lead service line inventory · 2024 · completed
Initial inventory complete and available for review at the Service Center, 415 S. Vandemark Road; work continues to identify remaining unknown-material lines.
Source: sidneyoh.comsidneyoh.comsidneyoh.com
Planned or needed
- TTHM corrective actions · 2024-2025 · under construction
In response to the 2024 violation the city listed increased flushing of key distribution sections, optimizing water tower turnover rates, exploring additional… - Identification of unknown-material service lines · ongoing · needed
The city asks customers to report the customer-owned portion of their service line; no replacement cost or schedule is published. - Remaining underground utility projects · $6 million · 2016 · needed
The comprehensive plan identified over $6 million of additional underground utility projects still unfinished, with more known and unscheduled. Figure is a…
Sewers
Sanitary
City-run separate sanitary sewer system and wastewater plant whose stated purpose is to protect water quality in the Great Miami River. A $12 million upgrade completed in spring 2017 under an Ohio WPCLF loan raised capacity from 13.5 to 14.0 MGD, added UV disinfection and back-up generation. The system has severe inflow and infiltration…
Storm
Separate storm sewer system with a stormwater utility fee adopted as a required activity under the city's Ohio EPA NPDES Phase II stormwater permit. Non-residential properties are assigned an Equivalent Residential Unit multiple equal to measured impervious…
Source: sidneyoh.comsidneyoh.com
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
- 45365 · Sidney70% 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
Sidney City does not buy water from another system on record; it treats its own source water.
No other system is on record buying water from Sidney 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
Sidney City's own pages: sidneyoh.com, sidneyoh.com
Notable facts: sidneyoh.com, sidneyoh.com
History: sidneyoh.com, sidneyoh.com, sidneyoh.com
Water quality: sidneyoh.com, sidneyoh.com
Planned work: sidneyoh.com, sidneyoh.com, sidneyoh.com
Water pressure: sidneyoh.com
Capital projects: sidneyoh.com, sidneyoh.com, sidneyoh.com
Rates: codelibrary.amlegal.com, sidneyoh.com, sidneyoh.com, sidneyoh.com
Sewers: sidneyoh.com, sidneyoh.com
Treatment: sidneyoh.com, sidneyoh.com
Supply stress: sidneyoh.com, sidneyoh.com