Hillsboro, MO 63050

7 water systems • 14,647 residents

Good water quality with few concerns

B

Score: 61/100

Graded on EPA violations, contaminants, severity, compliance, and enforcement history. See methodology.

Data updated June 2026 • Sources: EPA ECHO and EPA Envirofacts

21

Contaminants Detected

307

Violations on Record

171

Health-Based Violations

0

Recent Violations

Grade Breakdown

Contaminant Count4 / 25
Violation History20 / 25
Contaminant Severity0 / 25
System Compliance0 / 15
Enforcement History0 / 10
Total Score61%

61 / 100 points

Recommended Water Filters

  • ✓Point-of-Use Carbon Filter (NSF-certified for lead)
  • ✓Reverse Osmosis or Ion Exchange Filter
  • ✓Ultraviolet (UV) Purification
Compare filter types in our Filter Guide →

Consult a water quality specialist for personalized recommendations.

Hillsboro vs MO & National Average

Detected Contaminants

21 contaminants detected across water systems serving this ZIP code

ContaminantCategory
Nitrate-NitriteAgricultural
Antimony, TotalHeavy Metal
ArsenicHeavy Metal
BariumHeavy Metal
Beryllium, TotalHeavy Metal
CadmiumHeavy Metal
ChromiumHeavy Metal
Lead and Copper RuleHeavy Metal
LEAD AND COPPER RULE REVISIONSHeavy Metal
MercuryHeavy Metal
SeleniumHeavy Metal
Thallium, TotalHeavy Metal
CYANIDEInorganic
FluorideInorganic
Coliform (TCR)Microorganism
Revised Total Coliform RuleMicroorganism
Consumer Confidence RuleOther
Groundwater RuleOther
Public NoticeOther
Radium-226Radiological
Radium-228Radiological

Water System Information

Systems Serving This ZIP:
EAGLES LANDING SUBDIVISION ASSOCIATION, JEFFERSON COUNTY PWSD 7, JCPSD SUMMER SET, LAKE LORRAINE WATER CO, HILLSBORO PWS +2 more
Population Served:
14,647
Systems With Violations:
7 of 7
Major Violations:
28
Enforcement Actions:
293

Nearby Areas

63012

Barnhart • 4.3 mi away

A

63070

Pevely • 5.3 mi away

B

63051

House Springs • 5.9 mi away

C

63016

Cedar Hill • 6.3 mi away

C

63010

Arnold • 6.6 mi away

A

63028

Festus • 6.6 mi away

F

Frequently Asked Questions

What does the grade mean?

Our A–F grade ranks this ZIP code's water quality against every other analyzed ZIP in the country, based on EPA data. A = among the best, F = among the most troubled.

Is my tap water safe to drink?

Water systems regulated by the EPA must comply with Safe Drinking Water Act standards. However, if you're concerned about water quality, consider a water filter appropriate for your contaminants.

How often is the data updated?

We update our data quarterly with the latest EPA ECHO and Envirofacts data. Historical violations are tracked to identify patterns.

What filters do you recommend?

Filter recommendations are based on detected contaminants in your area. See our Filter Guide for detailed information about different filter types.