NAWA

• NAWA is a joint venture of Tipp City and Vandalia, created in March 2002 as the T/V Water Authority; Tipp City staff run the plant while Vandalia handles day-to-day financial management, and capacity is split 60/40 in…
• Unlike most small groundwater systems that simply filter and chlorinate, NAWA pushes its well water through nanofiltration membranes to strip out hardness and viruses before disinfection.
• Twelve monitoring wells have been watching the groundwater upgradient of the wellfield as an 'early warning' network since 1996, and special zoning has protected the 1-year time-of-travel zone around the wells since…
• Tipp City's combined water-and-sewer cost of $293.63 per quarter sits below the 71-jurisdiction regional median of $342.78 in the 2026 Piqua rate survey, and its water rate did not increase at all from 2025 even as the…
• The aquifer NAWA taps has no confining layer at all — the sand and gravel runs continuously to the surface and the water table sits just 5 to 15 feet down, which is why Ohio EPA rates it highly susceptible to…

Source: tippcityohio.govwaterworld.comtippcityohio.gov

• 1994Tipp City developed a Well Head Protection Program inventorying potential contamination sources within a 5-year 'time of travel' zone around the wells; special zoning was adopted for the 1-year zone.
• 1996Tipp City implemented a ground water monitoring protection program; twelve monitoring wells upgradient of the well field now serve as an 'early warning' system.
• 2002Vandalia and Tipp City created the joint water authority in March, originally named the T/V Water Authority, later the Northern Area Water Authority (NAWA), with capacity split 60% Vandalia / 40%…
• 2004The roughly $15 million NAWA nanofiltration/membrane-softening plant (7 MGD as designed; later cited at 7.7 MGD) went into operation, with Tipp City staff operating the plant and Vandalia handling…
• 2026In the Piqua annual rate survey, Tipp City's water charge held flat from 2025 at $183.74 per quarter while its sewer charge rose to $109.89; the survey-wide combined average across 71 jurisdictions…

Source: tippcityohio.govwaterworld.comtippcityohio.gov

How it is treated

Groundwater from seven production wells in buried sand-and-gravel aquifers associated with the Great Miami River is pumped to the NAWA plant, run through sand filters for iron and manganese removal, then through nanofiltration membranes to reduce or remove hardness, viruses and other contaminants.…

Source: tippcityohio.govamtaorg.com

Water pressure

Not published. No psi figure appears in the 2025 CCR or on Tipp City's utility pages. The only pressure-related public record found is that the 2026 CR25A water main extension was…

Source: tippcityohio.govmiamivalleytoday.com

$8.17 per 1,000 gallons

Typical household bill about $61 a month for water.

Derived from the City of Piqua 2026 Annual Rate Survey, which prices every jurisdiction at 22,500 gallons (3,000 cubic feet) per quarter. Tipp City water = $183.74/quarter, i.e.…

Source: tippcityohio.govtippcityohio.gov

Source: tippcityohio.gov

EPA compliance record

Lead at the tap: 90th-percentile result 3.2 ppb in 2025 (action level 15 ppb).

EPA record: no health-based violations since 2015.

Recent and current work

• NAWA membrane-softening / nanofiltration water treatment plant · $15 million · 2004 · completed
  Estimated $15M covering the treatment facility, wellfield improvements and transmission line; 7 MGD as originally reported, cited at 7.7 MGD in later trade…
• CR25A 12-inch NAWA water main extension · $448,283 · 2026 · under construction
  Council authorized a contract with Ranger Earthworks LLC of Casstown on April 22, 2026. Ties the NAWA main up County Road 25A to improve water pressure for…

Source: miamivalleytoday.comwaterworld.com

Planned or needed

• Tri-Cities North Regional Wastewater Authority treatment plant expansion and rehabilitation · $217 million · 2026 · planned
  Would raise design capacity from 11.2 MGD to 17.3 MGD and address aging equipment at the 1985 plant. The authority is seeking roughly $217 million through Ohio…

Source: hhoh.org

NAWA's Ohio EPA source water susceptibility analysis rates the aquifer as HIGHLY susceptible to contamination, for five stated reasons: water quality results already indicate impacts of nitrates; depth to water is only 5-15 feet below ground surface; the sand and gravel aquifer material is continuous to the surface and the soil is sandy…

Source: tippcityohio.gov

Sanitary

Wastewater from Tipp City, Vandalia and Huber Heights is treated by the Tri-Cities North Regional Wastewater Authority (TCA), a joint venture of the three cities serving about 67,000 residents. The plant was built in 1985, has a design flow capacity of 11.2 MGD and is currently operating at about 96% of that capacity. Facilities include…

Storm

Tipp City operates a Municipal Separate Storm Sewer System (MS4) regulated by Ohio EPA under the Phase II stormwater program. Many of the city's storm sewers drain directly to local creeks and the Great Miami River; storm sewers do not go to the wastewater…

Source: hhoh.orgtippcityohio.govtippcityohio.gov

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