Provider, PWSID, source-water, ZIP, testing and treatment research for properties in Dayton, Ohio.
Dayton sits within the Miami Valley market, where municipal systems, regional districts, purchased water and private wells can exist within the same broader area. Treatment should follow the actual source and test evidence. The current research starting point is Dayton Public Water System, with a source profile described as great miami buried-valley aquifer groundwater.
Dayton pumps groundwater from the Great Miami buried-valley aquifer through multiple well fields and treatment plants.
The provider record is a starting point, not a household diagnosis. Public-system information describes utility monitoring and compliance. It does not prove the condition at every address, account for service-line or building plumbing, or represent a private well.
Miami Valley research often involves buried-valley aquifer groundwater, municipal well fields and regional distribution relationships.
The guide represents common Dayton mailing ZIPs—45402, 45403, 45404, 45405, 45406, 45409, 45410, 45414 and 16 additional common ZIPs—and uses Dayton Public Water System with OH5703512 as the current research starting point.
The bill, service address, current report and property plumbing determine whether the starting point applies. ZIPs, city limits and county lines do not define one water-service boundary.
Dayton is grouped with Kettering, Beavercreek, Centerville, Miamisburg inside the Dayton and the Miami Valley hub. Those pages help compare regional systems but do not prove that the same supplier serves each address.
A property near the edge of Dayton may use a different public system or a private well even when the mailing address looks local, so the current bill and service address control the research path.
ZIP codes do not define utility boundaries. The entries below are static research links for common Dayton mailing ZIPs. Confirm the street address, provider and PWSID before relying on a result.
| ZIP code | Postal use | Utility starting point | PWSID | Source profile | Research links |
|---|---|---|---|---|---|
| 45402 | Common street-address research ZIPUse the property street address, not a PO Box, to confirm the provider. | Dayton Public Water SystemVerified public-system research starting point; confirm the current account. | OH5703512 | Great Miami buried-valley aquifer groundwater | |
| 45403 | Common street-address research ZIPUse the property street address, not a PO Box, to confirm the provider. | Dayton Public Water SystemVerified public-system research starting point; confirm the current account. | OH5703512 | Great Miami buried-valley aquifer groundwater | |
| 45404 | Common street-address research ZIPUse the property street address, not a PO Box, to confirm the provider. | Dayton Public Water SystemVerified public-system research starting point; confirm the current account. | OH5703512 | Great Miami buried-valley aquifer groundwater | |
| 45405 | Common street-address research ZIPUse the property street address, not a PO Box, to confirm the provider. | Dayton Public Water SystemVerified public-system research starting point; confirm the current account. | OH5703512 | Great Miami buried-valley aquifer groundwater | |
| 45406 | Common street-address research ZIPUse the property street address, not a PO Box, to confirm the provider. | Dayton Public Water SystemVerified public-system research starting point; confirm the current account. | OH5703512 | Great Miami buried-valley aquifer groundwater | |
| 45409 | Common street-address research ZIPUse the property street address, not a PO Box, to confirm the provider. | Dayton Public Water SystemVerified public-system research starting point; confirm the current account. | OH5703512 | Great Miami buried-valley aquifer groundwater | |
| 45410 | Common street-address research ZIPUse the property street address, not a PO Box, to confirm the provider. | Dayton Public Water SystemVerified public-system research starting point; confirm the current account. | OH5703512 | Great Miami buried-valley aquifer groundwater | |
| 45414 | Common street-address research ZIPUse the property street address, not a PO Box, to confirm the provider. | Dayton Public Water SystemVerified public-system research starting point; confirm the current account. | OH5703512 | Great Miami buried-valley aquifer groundwater | |
| 45415 | Common street-address research ZIPUse the property street address, not a PO Box, to confirm the provider. | Dayton Public Water SystemVerified public-system research starting point; confirm the current account. | OH5703512 | Great Miami buried-valley aquifer groundwater | |
| 45416 | Common street-address research ZIPUse the property street address, not a PO Box, to confirm the provider. | Dayton Public Water SystemVerified public-system research starting point; confirm the current account. | OH5703512 | Great Miami buried-valley aquifer groundwater | |
| 45417 | Common street-address research ZIPUse the property street address, not a PO Box, to confirm the provider. | Dayton Public Water SystemVerified public-system research starting point; confirm the current account. | OH5703512 | Great Miami buried-valley aquifer groundwater | |
| 45419 | Common street-address research ZIPUse the property street address, not a PO Box, to confirm the provider. | Dayton Public Water SystemVerified public-system research starting point; confirm the current account. | OH5703512 | Great Miami buried-valley aquifer groundwater | |
| 45420 | Common street-address research ZIPUse the property street address, not a PO Box, to confirm the provider. | Dayton Public Water SystemVerified public-system research starting point; confirm the current account. | OH5703512 | Great Miami buried-valley aquifer groundwater | |
| 45424 | Common street-address research ZIPUse the property street address, not a PO Box, to confirm the provider. | Dayton Public Water SystemVerified public-system research starting point; confirm the current account. | OH5703512 | Great Miami buried-valley aquifer groundwater | |
| 45426 | Common street-address research ZIPUse the property street address, not a PO Box, to confirm the provider. | Dayton Public Water SystemVerified public-system research starting point; confirm the current account. | OH5703512 | Great Miami buried-valley aquifer groundwater | |
| 45429 | Common street-address research ZIPUse the property street address, not a PO Box, to confirm the provider. | Dayton Public Water SystemVerified public-system research starting point; confirm the current account. | OH5703512 | Great Miami buried-valley aquifer groundwater | |
| 45430 | Common street-address research ZIPUse the property street address, not a PO Box, to confirm the provider. | Dayton Public Water SystemVerified public-system research starting point; confirm the current account. | OH5703512 | Great Miami buried-valley aquifer groundwater | |
| 45431 | Common street-address research ZIPUse the property street address, not a PO Box, to confirm the provider. | Dayton Public Water SystemVerified public-system research starting point; confirm the current account. | OH5703512 | Great Miami buried-valley aquifer groundwater | |
| 45432 | Common street-address research ZIPUse the property street address, not a PO Box, to confirm the provider. | Dayton Public Water SystemVerified public-system research starting point; confirm the current account. | OH5703512 | Great Miami buried-valley aquifer groundwater | |
| 45439 | Common street-address research ZIPUse the property street address, not a PO Box, to confirm the provider. | Dayton Public Water SystemVerified public-system research starting point; confirm the current account. | OH5703512 | Great Miami buried-valley aquifer groundwater | |
| 45440 | Common street-address research ZIPUse the property street address, not a PO Box, to confirm the provider. | Dayton Public Water SystemVerified public-system research starting point; confirm the current account. | OH5703512 | Great Miami buried-valley aquifer groundwater | |
| 45449 | Common street-address research ZIPUse the property street address, not a PO Box, to confirm the provider. | Dayton Public Water SystemVerified public-system research starting point; confirm the current account. | OH5703512 | Great Miami buried-valley aquifer groundwater | |
| 45458 | Common street-address research ZIPUse the property street address, not a PO Box, to confirm the provider. | Dayton Public Water SystemVerified public-system research starting point; confirm the current account. | OH5703512 | Great Miami buried-valley aquifer groundwater | |
| 45459 | Common street-address research ZIPUse the property street address, not a PO Box, to confirm the provider. | Dayton Public Water SystemVerified public-system research starting point; confirm the current account. | OH5703512 | Great Miami buried-valley aquifer groundwater |
ZIP data attribution: common ZIP research starting points were compiled from Ready APIs curated-us-zips, sourced from the U.S. Census Bureau, USPS and SimpleMaps. Postal ZIPs are not water-service boundaries.
A city report should lead to a better decision—not to an automatic equipment recommendation. The correct system depends on what is documented and what the household wants to improve.
Consider point-of-entry treatment when the concern affects multiple fixtures and the exact model has the required reduction claims and flow capacity.
Compare whole-house systems →Use measured hardness to size a softener. A softener controls calcium and magnesium scale; it is not a universal contaminant filter.
Understand water softeners →RO is usually a drinking-water solution. Match the exact membrane system and certification to the specific dissolved substances of concern.
Review reverse osmosis →Installation conditions, plumbing layout, drain access, flow, pressure and maintenance matter. Review professional installation and financing options before final equipment selection.
The research starting point is Dayton Public Water System. That is not a guarantee for every address. Confirm the provider on the current bill and match OH5703512 in Ohio Drinking Water Watch before relying on a utility-wide result.
No. ZIP codes are postal-delivery areas, not water-service boundaries. One ZIP can contain multiple public systems, purchased-water zones and private wells.
Review the current provider, PWSID, newest annual water-quality report, source-water type, any Ohio EPA or UCMR records relevant to that system, and property-specific conditions such as hardness, plumbing age, taste, odor or staining.
No. A utility report describes system-wide monitoring. It cannot prove the same condition at every tap, and it does not describe private plumbing, service-line material, a private well or a treatment system already installed at the property.
There is no responsible citywide answer. A softener addresses hardness; carbon may address selected taste, odor and chemical-reduction goals; reverse osmosis targets drinking water; and whole-house filtration must be matched to flow, test evidence and exact certified claims.
Share the provider, source, ZIP code, report or test result and the improvement you want. The response can address testing, whole-house filtration, softening, reverse osmosis, professional installation and financing availability.
These links are starting points. Use the newest utility report and current account information before relying on a result.
Data timing: Ohio and EPA public-system records can lag current utility operations. EWG is an independent comparison source and is not a regulator or a Zero Trace Water partner. Ohio EPA PFAS and cyanotoxin records distinguish sample points and can include raw and finished water.
