Miamisburg City

• Miamisburg's production wells sit right beside the Great Miami River, but the city deliberately draws from a much deeper aquifer beneath the shallow, contaminated water table barely 15 feet down.
• Before 2018 the tap water ran about 22 grains per gallon of hardness; the reverse-osmosis plant brought it to roughly 7.5 grains, soft enough that the city had to publish instructions telling residents to readjust their…
• The city has emergency interconnections with West Carrollton and Montgomery County and used neither of them at all in 2025.
• Miamisburg's CCR explains a part per billion as 'one second in 31.7 years', and a part per million as one second in a little over 11.5 days.
• The Miami Conservancy District estimates 97 percent of the population of the Great Miami River watershed, about 2.3 million people, drinks groundwater from the same buried-valley aquifer system, which holds roughly 1.5…

Source: storage.googleapis.commcdwater.orgcityofmiamisburg.com

• 1988U.S. EPA designated the Great Miami Buried Valley Aquifer, the source of Miamisburg's wells, a federal Sole Source Aquifer (May 1988).
• October 2018The city put its new reverse-osmosis softening plant online at the Water Treatment Facility, the second-most expensive piece of a water and sewer master plan totalling more than $69 million; hardness…
• 2024Miamisburg exceeded the MCL for tetrachloroethylene (PCE): highest level found 6 ppb against a 5 ppb MCL, with detections ranging 0.2-12.1 ppb. Typical sources are discharge from factories and dry…
• 2025The city's 2025 CCR published a formal corrections notice for its 2024 report: wrong copper and lead action levels and MCLGs, a wrong PCE MCL and MCLG, a missing PCE range of detection, non-detected…
• 2026-2027Two new production wells and an 18-inch raw water transmission main from a new Soldiers Home Road wellfield to the Water Treatment Facility went to bid in February 2026 and into construction…

Source: storage.googleapis.commcdwater.orgcityofmiamisburg.com

How it is treated

Miamisburg treats its own groundwater. Five production wells on land next to the Great Miami River draw from the Great Miami River Buried Valley Aquifer System (two more wells are under construction). Raw water is pumped to the Water Treatment Facility, where it is treated by chemical oxidation to…

Source: storage.googleapis.comcityofmiamisburg.com

Water pressure

Not published. No distribution pressure or psi figure appears in the city's CCR, utility pages or water/sewer department pages.

$9.74 per 1,000 gallons

Typical household bill about $32 a month for water.

Rates are set by ordinance and take effect on the first bill of each year. The minimum monthly charge for most single-family residential meters is $69.30, made up of $21.71 water…

Source: cityofmiamisburg.comcityofmiamisburg.comcityofmiamisburg.com

Source: storage.googleapis.com

EPA compliance record

Lead at the tap: 90th-percentile result 1.9 ppb in 2025 (action level 15 ppb).

EPA record: no health-based violations since 2015.

3 violations of any kind logged since 2020, 3 of them paperwork (monitoring, reporting, public notice or consumer report).

Recent and current work

• Reverse osmosis softening plant · 2018 · completed
  New R/O softening train at the Water Treatment Facility, online October 2018, cutting hardness from about 22 grains per gallon to an average of 7.5-8. It was…
• Production wells and raw water main · $8.2 million · 2026-2027 · under construction
  Two new production wells to increase overall supply plus an 18-inch transmission main connecting the new Soldiers Home Road wellfield to the Water Treatment…
• 2024 CCR corrections · 2025 · completed
  The city republished corrected copper and lead action levels and MCLGs, the correct PCE MCL/MCLG and range of detection, consistent units, and a direct CCR…

Source: cityofmiamisburg.comcityofmiamisburg.comcityofmiamisburg.com

Planned or needed

• Lead service line inventory maintenance · completed
  Required under the Lead and Copper Rules. The inventory is published at cityofmiamisburg.com/leadservice; its omission from the 2024 CCR was a reporting error…

Source: storage.googleapis.comcityofmiamisburg.com

Ohio EPA's source water assessment rates the aquifer supplying Miamisburg as highly susceptible to contamination, for four stated reasons: no protective clay layer over the aquifer, a shallow water table less than 15 feet below ground surface, significant potential contaminant sources nearby, and manmade contaminants already present.…

Source: storage.googleapis.com

Sanitary

Miamisburg runs its own collection system and Water Reclamation Facility through its Sanitary Collections and Reclamation division; sewer is billed on the same monthly utility bill as water and refuse, at a $29.59 minimum plus $7.69 per unit above 3 units. Sewer work was the other half of the master plan of more than $69 million funded…

Storm

No separate stormwater charge appears on the residential utility bill; the city's published minimum monthly charge is made up only of water, sewer and refuse. No Miamisburg stormwater utility or combined-versus-separate sewer documentation could be…

Source: cityofmiamisburg.comcityofmiamisburg.comcityofmiamisburg.com

Compiled from the utility's own reports and public records, then independently re-checked against primary sources.