Looks like a utility or municipal lab
Judging by the name only (this is our label, not the state's). Labs like this usually test their own system. The state list does not say whether it takes samples from the public, so ask before you send one.
At a glance
- What it is certified to test
- 1 of the 9 common well tests on the IA list (see which)
- Price
- not published on the state list: ask the lab for a quote
- Turnaround
- not stated on the state list or the lab’s website: ask when you order
- Homeowner samples
- not stated: ask the lab
Lab facts
- Listed by
- Iowa (Iowa Department of Natural Resources (DNR) - Environmental Laboratory Certification Program)
- Address
- 5631 235th St, PO Box 282, Clear Lake, IA 50428 · Open in Google Maps
- Phone
- (641) 357-2019
- Website
- clearlakesd.org
- Public / homeowner samples
- Public samples: ask the labNot stated in the list.
Certification record
- Certificate ID
- IA Lab # 212
- Issued by
- Iowa Department of Natural Resources (DNR) - Environmental Laboratory Certification Program (certification program)
- Expiry on the list
- 4/1/2027 · expires in 137 days
- List version
- Iowa DNR LabCert - List of Certified Labs (Drinking Water program) + Find a Lab analyte search + Lab Details, version Date Generated: 11/14/2026 (LabCert, live database)
- We fetched it
- 15 Nov 2026 (file SHA-256 d8f869165e69…) · open the state file
Tests on the state list
| Contaminant | On this state list |
|---|---|
| Coliform / E. coli | Named on the official list |
| Nitrate | Not named on this list |
| Arsenic | Not named on this list |
| Lead | Not named on this list |
| PFAS | Not named on this list |
| Uranium | Not named on this list |
| Radon (water) | Not named on this list |
| Manganese | Not named on this list |
| VOCs | Not named on this list |
Groups as written on the state list (2)
- E. coli
- Total Coliform
- Named on the official list The state list names this analyte (or a column for it) for this lab.
- Group-level certification Certified for a parent group (e.g. 'Inorganics') that includes this analyte. Confirm the specific test with the lab.
- Partial group certification The list marks the group as 'Partial'. Confirm this analyte with the lab.
- Subcontracted The lab sends this analyte to another accredited lab (MDH 'X*').
Iowa DNR lab type: Government. LabCert lists 2 drinking-water analytes this lab is certified for.
Nearest labs that take homeowner samples
No other lab that takes homeowner samples is within 25 miles of this lab; the nearest is 56 miles away. Distances are straight-line from the address on the state list (approx. = ZIP-code centre). “Takes homeowner samples” comes from a state list column or the lab’s own website, as named.
| Lab and tests named on its list | Town | Distance | Tests in common with this lab | Price printed | Turnaround printed | Homeowner samples: source |
|---|---|---|---|---|---|---|
| AgSource Coliform / E. coli, Nitrate, Arsenic | Ellsworth, IA | 56 mi (approx.) | 1 | – | – | lab’s own website, read 15 Nov 2026 |
| Eurofins - Cedar Falls Coliform / E. coli, Nitrate | Cedar Falls, IA | 65 mi (approx.) | 1 | – | – | Oregon list |
| UC Laboratory Coliform / E. coli, Nitrate, Arsenic, Lead | Janesville, MN | 69 mi (approx.) | 1 | – | – | Minnesota list |
| Fillmore SWCD Water Quality Laboratory Coliform / E. coli | Preston, MN | 76 mi (approx.) | 1 | – | – | Minnesota list |
| Southeastern Minnesota Water Analysis Laboratory Coliform / E. coli, Nitrate, Arsenic, Lead | Rochester, MN | 78 mi (approx.) | 1 | – | – | Minnesota list |
Price and turnaround as printed on each lab’s own website and checked by a second reader; – = not published or not read yet.
Around this lab: Cerro Gordo County, IA
- Private wells: about 4,809 people, 11% of Cerro Gordo County’s 43,017 residents (USGS, 2015); rank 36 of 99 counties in Iowa by people on wells.
- At house sale: Statewide has a septic system rule (Iowa Code 455B.172(11); 567 IAC Chapter 69). What it requires
- EPA radon zone (indoor air): Zone 1: highest potential (average indoor radon may be greater than 4 pCi/L). EPA says the zone map should not decide whether one home needs testing.
- Arsenic above 10 µg/L (USGS model): about 634 private-well users (95% range 443 to 887; 2010 base), rank 15 of 99 in the state. A screening estimate, not a measurement of any well.
- Older homes (Census ACS 2020–2024): 74% of 22,786 housing units were built before 1980, above the state share of 62%. Homes built before 1986 are more likely to have lead solder or fittings, so test tap water for lead there.
- PFAS in public water nearby (public supply, not your well): 2 public systems serving this county reported EPA UCMR 5 results; 0 had a PFOA or PFOS sample at or above 4.0 ng/L.
County figures describe where the lab is, not the lab. Sources: USGS 2015 water use and 2017 arsenic estimates, EPA radon zones, Census ACS table B25034 (2020–2024), EPA UCMR 5 (2023–2026); details and links on the sources page.
Before you send a sample
Call the lab to confirm it's currently certified for the exact test and method, that it accepts samples from homeowners, and how to collect and ship them. Bacteria samples have short holding times. Status can change between list updates. To check a status, contact the Iowa certification program.
Is this your lab?
Labs can ask for corrections through the agency that publishes their state list. Homeowner service, prices and turnaround above come only from the lab’s own website. To ask us to correct or remove this listing, write to us (how we handle listings).
Iowa DNR LabCert - List of Certified Labs (Drinking Water program) + Find a Lab analyte search + Lab Details. Fetched 2026-11-15 (UTC). File SHA-256 d8f869165e69…
Open the official source list