Water Quality in Dayton, OH (45309)

EPA violation data for public water systems serving ZIP code 45309.

No Health-Based Violations

None of the 30 water systems serving this ZIP have exceeded federal contaminant limits in the past 5 years. There are28 monitoring/reporting violations (missed testing deadlines), all resolved.

Better than 84% of US ZIP codes.

Based on EPA compliance data. Not a substitute for an official water quality report from your utility.

11,876

Population

30

Water Systems

28

Violations (5yr)

0

Health-Based

Location

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Water Systems Serving This Area (30)

Dayton, City Of-Ottawa Plant

Groundwater under influence of surface water 236,000 people served
0 violations

Dayton, City Of-Miami Plant

Groundwater under influence of surface water 184,000 people served
0 violations

Montgomery County Water Services 1 Pws

Purchased surface water 150,207 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb)

Montgomery Co:Water System # 1

Purchased groundwater 150,000 people served
0 violations

Dayton Public Water System

Surface water 141,407 people served
0 violations
Lead tested: 470 ppb (limit: 15 ppb)

Montgomery Co,Gr.Moraine-Bv.Cr

Groundwater 141,000 people served
0 violations

Montgomery County Water Services 2 Pws

Purchased surface water 83,033 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb)

Huber Heights Public Water System

Groundwater 43,439 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb)

Troy City Pws

Groundwater 26,305 people served
0 violations
Lead tested: 0.5 ppb (limit: 15 ppb)

Nawa

Groundwater 24,766 people served
0 violations
Lead tested: 3.2 ppb (limit: 15 ppb)

Piqua City Pws

Surface water 20,354 people served
3 violations (5yr)
Lead tested: 0 ppb (limit: 15 ppb)

Brookville Municipality Pws

All resolved
Purchased surface water 5,923 people served
1 violation (5yr) · All resolved
Lead tested: 1.1 ppb (limit: 15 ppb)

Farmersville Village Pws

Groundwater 1,009 people served
0 violations
Lead tested: 2.1 ppb (limit: 15 ppb)

Shaefer Sunoco

Groundwater 650 people served
0 violations

L&K Restaurant

Groundwater 500 people served
0 violations

The Ridge Church

Groundwater 400 people served
0 violations

Salem Church Of God Scho

Groundwater 375 people served
0 violations

Brookville Lake Estates

All resolved
Groundwater 211 people served
2 violations (5yr) · All resolved
Lead tested: 0.8 ppb (limit: 15 ppb)

Rustic Inn

Groundwater 150 people served
0 violations

First United Methodist C

Groundwater 140 people served
0 violations

Providence Lutheran Church

Groundwater 100 people served
0 violations

Plainview Open Bible Church

Groundwater 100 people served
0 violations

Dayton Koa Holiday Pws

Groundwater 100 people served
2 violations (5yr)

K And B Molded Products

All resolved
Groundwater 65 people served
2 violations (5yr) · All resolved
Lead tested: 0.7 ppb (limit: 15 ppb) Copper tested: 7630 ppb (limit: 1300 ppb)

Brookville Church Of The Nazarene Pws

Groundwater 41 people served
0 violations

Hillcrest Tavern Inc.

Groundwater 40 people served
17 violations (5yr)

Pyrmont Church

All resolved
Groundwater 40 people served
1 violation (5yr) · All resolved

Miami Valley Mold

Groundwater 25 people served
0 violations

New Hope Open Bible Church

Groundwater 25 people served
0 violations

Old German Baptist Church

Groundwater 19 people served
0 violations

Contaminants Found

Public NoticeMonitoring
9 violations
Has active
Revised Total Coliform RuleMonitoring

Missed testing deadlines — not a detection of bacteria.

9 violations
All resolved
Consumer Confidence RuleMonitoring

Annual water quality report delivery requirement.

3 violations
Has active
Total Haloacetic Acids (HAA5)Monitoring
1 violation
All resolved
TTHMMonitoring
1 violation
All resolved
Lead and Copper RuleMonitoring

Lead and copper testing requirement. Lead exposure can cause developmental harm in children.

1 violation
All resolved
NitrateMonitoring

At high levels, nitrate can cause blue baby syndrome in infants.

1 violation
All resolved
E. COLIMonitoring
1 violation
All resolved

Lead & Copper Levels

Lead (Pb)

Within limit
0 ppb measured Action level: 15 ppb

Sampled: Jan 2025

Copper (Cu)

Exceeds limit
7630 ppb measured Action level: 1300 ppb

Sampled: Jan 2023

How Does This Compare?

Dayton (45309) has more violations than 84% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 28, most of which are monitoring/reporting issues.

Fewer violations 84th percentile More violations

Water Filter Recommendations

No contaminant issues detected. For general protection, a basic carbon filter removes common impurities like chlorine and sediment. Look for NSF/ANSI 42 certified products.

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