Marion Co RWD (Harvey)
What EPA’s and Iowa’s records show in this utility’s water: nitrate, arsenic and other regulated chemicals; lead and copper; and violations since 2016, with the certification that handles each result.
- Serves
- 236 people
- Connections
- 135
- Water source
- Groundwater
- Based in
- Harvey, IA
- County
- Marion
- Owner
- Local government
The short answer
Nothing in EPA’s and Iowa’s records for this utility is above a health goal. That covers nitrate, arsenic and other regulated chemicals, plus lead and copper, not everything. No health-based violations on file since 2016.
What was found
Haloacetic acids (HAA5), total trihalomethanes (TTHM), nitrate, arsenic, chromium (total) and fluoride: Iowa’s own results, samples taken from Jan. 16, 2020 to Aug. 6, 2026, with EPA’s 2012 to 2019 file for earlier years.
Below EPA’s limits3
Haloacetic acids (HAA5)
Forms or is added in treatment
14.3ppb
Highest yearly average, 2020 to 2026
Averaged by year, the highest was 14.3 ppb, in 2026, below EPA’s legal limit of 60 ppb. That was also the latest year on file.
What handles it
No certification claim covers this compound yet.
Total trihalomethanes (TTHM)
Forms or is added in treatment
18.5ppb
Highest yearly average, 2020 to 2026
Averaged by year, the highest was 18.5 ppb, in 2026, below EPA’s legal limit of 80 ppb. That was also the latest year on file. Earlier, from 2012 to 2019, EPA’s file shows a highest yearly average of 13.4 ppb, in 2017.
What handles it
- NSF/ANSI 53 look for “Trihalomethanes (TTHM) Reduction”
- NSF/ANSI 58 look for “Trihalomethanes (TTHM) Reduction”
Nitrate
Comes from the source
0.1ppm
Highest sample; found in 3 of 7
2026, one sample: 0.1 ppm
The highest sample, in 2023, was 0.1 ppm, below EPA’s legal limit of 10 ppm. In 2026, the latest year on file, its one sample was 0.1 ppm. Earlier, from 2012 to 2019, EPA’s file shows a highest sample of 2.9 ppm, in 2013.
What handles it
- NSF/ANSI 58 look for “Nitrate/Nitrite Reduction”
- NSF/ANSI 53 look for “Nitrate/Nitrite (30 ppm challenge)”
4 compounds tested and not foundBelow the reporting level in every sample. Not found is not the same as zero.
- Arsenic
- Chromium (total)
- Fluoride
- Lead
Violations since 2016
No health-based violations on file with EPA since 2016. There is 1 monitoring or reporting violation: a sample missed, late or not reported.
What this report can’t tell you
Everything else. Haloacetic acids (HAA5), total trihalomethanes (TTHM), nitrate, arsenic, chromium (total) and fluoride results here are Iowa’s own from 2020 on, with EPA’s national file for 2012 to 2019. Marion Co RWD (Harvey)’s own annual report, which it must send you every year, has the contaminants this page does not show.
Your own plumbing. Lead results are the 90th percentile across homes the utility samples. Your home’s service line, solder and fixtures decide yours. A certified lab test is the only way to know.
What it means for your health. This page reports what the records show and EPA’s limits and goals; it is not medical advice. If you are worried about a health effect, talk to a doctor or your local health department.
Anything after the latest data. SDWIS data is from 2026 Q3; UCMR 5 didn’t sample this utility; Iowa’s results run from Jan. 16, 2020 to Aug. 6, 2026.
Testing your own tap
The 3 labs Iowa certifies closest to the area Marion Co RWD (Harvey) serves, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.
Microbac Laboratories - Newton
Newton, IA · about 30 miles
Certified for bacteria, nitrate, lead and copper, metals, minerals and other inorganics, organic chemicals, disinfection byproducts
Microbac Laboratories - Centerville
Centerville, IA · about 40 miles
Certified for bacteria
State Hygienic Laboratory - Ankeny
Ankeny, IA · about 48 miles
Certified for bacteria, nitrate, lead and copper, metals, 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 IowaSources
- EPA UCMR 5 occurrence data, file of Oct. 15, 2026
- EPA SDWA bulk download (SDWIS federal data), 2026 Q3
- Iowa Department of Natural Resources, Water Supply Programs, results from Jan. 1, 2020 to Oct. 6, 2026, read Oct. 8, 2026
- EPA Six-Year Review 4 compliance monitoring data, 2012 to 2019, file of Feb. 5, 2024
- Certified labs: Iowa DNR, laboratories certified for drinking water, read Oct. 10, 2026; distances from the Census 2020 ZIP code tabulation area gazetteer
- Limits and goals: each contaminant’s page, with its EPA source.
- How this page is built: methodology.
PWSID IA6338000. Rebuilt from EPA data on Oct. 18, 2026.
Nearby
- Pella Water Works Department11,052
- Knoxville Water Works8,400
- Colonial Terrace MHP LLC250
- Sunrise Mill237
- Southshore Heights138
- Vista Village Mhc110
- Lovilia Municipal Water DepartmentMonroe County · 11 mi472
- Mahaska Rural Water System, Inc.Mahaska County · 13 mi11,325
- Oskaloosa Municipal Water DeptMahaska County · 15 mi12,808
What to do next
- Nothing here is above a health goalIn EPA’s and Iowa’s records for this utility. They don’t cover everything, which is why the next step matters.Every contaminant TapBuff tracks
- Get the utility’s own reportMarion Co RWD (Harvey) must send you a water quality report every year. It covers contaminants this page does not show.How to read it
- Test your own tap for leadYour service line, solder and fixtures decide the lead at your faucet, not the utility’s average.Lead in your water: what to do
- Decide if you want a filter at allA filter for taste or chlorine is a preference, not a need. The standards say what each kind can do.NSF/ANSI standards, decoded