Missouri Valley, IA 51555

3 water systems • 2,939 residents

Poor water quality - filtration recommended

D

Score: 36/100

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

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

25

Contaminants Detected

341

Violations on Record

31

Health-Based Violations

0

Recent Violations

Grade Breakdown

Contaminant Count0 / 25
Violation History11 / 25
Contaminant Severity12 / 25
System Compliance0 / 15
Enforcement History0 / 10
Total Score36%

36 / 100 points

Recommended Water Filters

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

Consult a water quality specialist for personalized recommendations.

Missouri Valley vs IA & National Average

Detected Contaminants

25 contaminants detected across water systems serving this ZIP code

ContaminantCategory
NitrateAgricultural
NitriteAgricultural
Total Haloacetic Acids (HAA5)Disinfection Byproduct
TTHMDisinfection Byproduct
Antimony, TotalHeavy Metal
ArsenicHeavy Metal
BariumHeavy Metal
CadmiumHeavy Metal
ChromiumHeavy Metal
Lead and Copper RuleHeavy Metal
MercuryHeavy Metal
SeleniumHeavy Metal
Thallium, TotalHeavy Metal
FluorideInorganic
Coliform (TCR)Microorganism
E. COLIMicroorganism
Revised Total Coliform RuleMicroorganism
Consumer Confidence RuleOther
Groundwater RuleOther
LASSOOther
Public NoticeOther
Combined Radium (-226 and -228)Radiological
Gross Alpha, Excl. Radon and URadiological
1,2,4-TrichlorobenzeneVolatile Organic
BenzeneVolatile Organic

Water System Information

Systems Serving This ZIP:
MISSOURI VALLEY WATER SUPPLY, SUNNYSIDE VILLAGE MHP LLC, VALLEY VIEW WATER ASSOCIATION
Population Served:
2,939
Systems With Violations:
3 of 3
Major Violations:
150
Enforcement Actions:
341

Nearby Areas

51550

Magnolia • 6.2 mi away

D

51546

Logan • 7.3 mi away

C

68023

Fort Calhoun • 12.4 mi away

A

51545

Little Sioux • 13.5 mi away

C

51564

Pisgah • 13.9 mi away

B

51579

Woodbine • 13.9 mi away

B

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.