Is Missouri Valley, IA tap water safe?
The short answer
1 of the 3 utilities serving Missouri Valley has a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and Iowa’s records: Valley View Water Association.
Missouri Valley Water Supply, which serves the most people here, has 2 results above the health goal. The worst: Arsenic at 2.2 ppb, above the health goal. Health goals are stricter than legal limits and are not enforced.
A town can be served by more than one utility, and some homes are on private wells. The name on your water bill tells you which is yours, and your ZIP code narrows it down. They are listed by how many people each serves in Missouri Valley’s ZIP codes, from EPA’s estimates.
- Open report
Missouri Valley Water Supply
Iowa · serves 2,678 people · under 100 in Missouri Valley
2 results above the health goal. The worst: Arsenic at 2.2 ppb, above the health goal.
No health-based violations since 2016
- Open report
Valley View Water Association
Iowa · serves 65 people · under 100 in Missouri Valley
1 result above the health goal. The worst: Lead at 3.8 ppb, above the health goal.
1 health-based violation since 2016
- Open report
Sunnyside Village MHP LLC
Iowa · serves 190 people · lists Missouri Valley among the places it serves
Nothing in its records is above a health goal.
No health-based violations since 2016
What handles it
Each of these is certified, on a certifier’s listing, for a result above a line in Missouri Valley Water Supply’s water, which serves the most people here. Another utility’s report names what handles its own results.
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Countertop reverse osmosis
- IAPMO listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 58NSF/ANSI 401checked Oct. 4, 2026
Certified for: Arsenic, Lead
Aquasana SmartFlow Reverse Osmosis (AQ-SFRO2)
Under-sink reverse osmosis
- WQA listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 58NSF/ANSI 401checked Oct. 9, 2026
Certified for: Arsenic, Lead
Brondell Capella RC250 Reverse Osmosis System
Under-sink reverse osmosis
- WQA listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 58NSF/ANSI 401checked Oct. 9, 2026
Certified for: Arsenic, Lead
Water testing near Missouri Valley
The 3 labs Iowa certifies closest to Missouri Valley, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.
Midwest Laboratories
Omaha, NE · about 25 miles
Certified for bacteria, nitrate, lead and copper, metals, minerals and other inorganics
Analytical & Consulting Services
Sergeant Bluff, IA · about 60 miles
Certified for bacteria, nitrate
Siouxland District Health Department
Sioux City, IA · about 69 miles
Certified for bacteria, nitrate, minerals and other inorganics
State Hygienic Laboratory at the University of Iowa: Through the Grants-to-Counties program, private well owners in participating counties can have their water tested for total coliform bacteria and nitrate. Start with the county sanitarian at your county health department. No cost in a participating county. The Grants-to-Counties Program, State Hygienic Lab at the University of Iowa.
All 36 certified labs for IowaZIP codes in Missouri Valley
Which ZIP codes are in Missouri Valley: Census 2020 relationship files. Which utilities serve them, and how many people: EPA SDWIS and EPA’s service area map. Each utility’s results: EPA UCMR 5, EPA SDWIS, and EPA’s and the state’s compliance monitoring, as its report lists them. How they are measured: methodology. Certified labs: Iowa DNR, laboratories certified for drinking water; distances from the Census 2020 ZIP code tabulation area gazetteer.
Near Missouri Valley
Towns nearby with a page of their own.
What to do next
- Read Missouri Valley Water Supply’s full reportEvery result with its dates, the violations, and the certification claim that handles each finding.Open the report
- Filters for ArsenicRanked by certification and what they cost over five years.The best reverse osmosis systems, ranked
- On a private well?No utility tests a well. A certified lab test is the first step.How to test well water