55016
Cottage Grove, MN
Washington County · Minneapolis-St. Paul-Bloomington, MN-WI metro area
COTTAGE GROVE
Is Cottage Grove tap water safe to drink?
Source: EPA UCMR5 utility monitoring plus EPA Water Quality Portal well sampling (mapped to nearest ZIP). Last tested April 2025.
Neighborhood:
- Cottage Grove
The short answer for Cottage Grove
Cottage Grove tap water has 6 contaminants above EPA guidelines, including Perfluorooctanoic acid at 13.4× the limit (tested August 2024). See the full compound-by-compound breakdown and filter recommendations.
The health risk for Cottage Grove
PFAS ('forever chemicals') have been detected above EPA limits in this water system's most recent tests. These synthetic chemicals do not break down in the body and are linked to a range of health effects. A certified filter is strongly recommended.
- PFPeA above limit.
Perfluorooctanoic acid concentration (ng/L)
August 2024
0 ng/L
4 ng/L
100 ng/L
53.600 ng/L
Detected
ng/L
4 ng/L
EPA limit
guideline
1240% above limit
Comparison
vs. guideline
EPA limit: 4 ng/L | Your water: 53.600 ng/L
Certified Filters for Cottage Grove Tap Water
Perfluorooctanoic acid (a PFAS 'forever chemical') was detected above EPA limits. These filters are independently certified to reduce common drinking-water contaminants.
Pitcher filter
Epic Pure XP Water Filter Pitcher
NSF-certified dual-layer filtration reduces 70+ contaminants including PFAS, lead, chlorine, microplastics, and bacteria.
NSF/ANSI 42, 53, 401 & P473Removes 99.99% PFASMade in USABPA-free
PFAS detected in 55016 · What you can do
Here's what actually removes PFAS from your water
The right filter eliminates PFAS at the tap. But not all filters do - and the type you choose matters for your home.
Common pitchers like Brita do not remove PFAS. You need a filter independently certified to NSF P473 (for pitcher filters) or NSF/ANSI 58 (for reverse osmosis systems). All three options below carry the relevant certification.
Certified PFAS filter types - how they differ
Certified Pitcher
Removes PFAS (99%+)
No installation, works today
Lowest upfront cost (~$70)
Must refill manually
Filters only what you pour in - not cooking water
Reverse Osmosis More complete
Removes PFAS + lead, arsenic, nitrates & more
Always-on - no refilling ever
Noticeably better tasting water
Filters drinking & cooking water automatically
Higher upfront cost ($200-$400)
Choose your option
Most elevated compounds
| Compound | Measurement | EPA Limit | Comparison |
|---|---|---|---|
| Perfluorooctanoic acid Tested: August 2024 · 123530 |
53.600 ng/L | 4 ng/L | 1240% above limit |
| Perfluorobutanesulfonic acid Tested: August 2024 · 123530 |
14.900 ng/L | 3 ng/L | 397% above limit |
| Perfluoro-3-methoxypropanoi... Tested: August 2024 · 123530 |
10.600 ng/L | 4 ng/L | 165% above limit |
| Perfluoroheptanoic acid Tested: August 2024 · 123530 |
5.330 ng/L | 3 ng/L | 78% above limit |
| PFPeA Tested: April 2025 · Well #12 Entry Point |
0.005 µg/L | 0.003 µg/L | 63% above limit |
View all tested compounds
123530 · Tested: Multiple dates
| Compound | Measurement | EPA Limit | Comparison |
|---|---|---|---|
| Perfluorooctanoic acid | 53.600 ng/L | 4 ng/L | 1240% above limit |
| Perfluorobutanesulfonic acid | 14.900 ng/L | 3 ng/L | 397% above limit |
| Perfluoro-3-methoxypropanoi... | 10.600 ng/L | 4 ng/L | 165% above limit |
| Perfluoroheptanoic acid | 5.330 ng/L | 3 ng/L | 78% above limit |
| Perfluoropentanesulfonic acid | 5.800 ng/L | 4 ng/L | 45% above limit |
| Perfluorohexanesulfonic acid | 7.970 ng/L | 10 ng/L | 80% of limit |
| Perfluorononanoic acid | 0.522 ng/L | 10 ng/L | 5% of limit |
| Chromium | 2.480 µg/L | 100 µg/L | 2% of limit |
| Copper | 14.200 µg/L | 1300 µg/L | 1% of limit |
| Perfluorohexanoic acid | 14.000 ng/L | 3000 ng/L | 0.5% of limit |
| Nitrate + Nitrite | 7.700 mg/L | 1E+04 mg/L | 0.1% of limit |
| Alachlor ESA | 145.000 ng/L | — | — |
| Alachlor OA | 36.600 ng/L | — | — |
| Alkalinity, total | 320.000 mg/L | — | — |
| Barium | 83.200 µg/L | — | — |
| Boron | 22.200 µg/L | — | — |
| Bromide | 0.078 mg/L | — | — |
| Calcium | 120.000 mg/L | — | — |
| Chloride | 191.000 mg/L | — | — |
| FtS 6:2 ion | 1.700 ng/L | — | — |
| Iron | 169.000 µg/L | — | — |
| Magnesium | 34.300 mg/L | — | — |
| Manganese | 72.800 µg/L | — | — |
| Metolachlor ESA | 16.600 ng/L | — | — |
| Molybdenum | 1.090 µg/L | — | — |
| Nickel | 2.550 µg/L | — | — |
| Organic carbon | 1.800 mg/L | — | — |
| Perfluorobutanesulfonate | 18.200 ng/L | — | — |
| Perfluorobutanoate | 198.000 ng/L | — | — |
| Perfluorohexanesulfonate | 8.470 ng/L | — | — |
| Perfluorooctane sulfonic acid | 0.240 ng/L | — | — |
| Perfluorooctanesulfonamide | 0.359 ng/L | — | — |
| Perfluoropentanesulfonate | 8.770 ng/L | — | — |
| Perfluorovaleric acid | 22.500 ng/L | — | — |
| Phosphorus | 0.019 mg/L | — | — |
| Potassium | 2.740 mg/L | — | — |
| Selenium | 1.830 µg/L | — | — |
| Sodium | 79.900 mg/L | — | — |
| Strontium | 167.000 µg/L | — | — |
| Sulfate | 28.300 mg/L | — | — |
| Tributyl phosphate | 2.390 ng/L | — | — |
| Tricresyl phosphate | 0.117 ng/L | — | — |
| Triethyl phosphate | 16.900 ng/L | — | — |
| Triphenyl phosphate | 0.860 ng/L | — | — |
| Tripropyl phosphate | 0.154 ng/L | — | — |
| Tris(1-chloro-2-propyl) pho... | 9.690 ng/L | — | — |
| Tris(2-butoxyethyl) phosphate | 108.000 ng/L | — | — |
| Tris(2-chloroethyl) phosphate | 2.140 ng/L | — | — |
| Zinc | 104.000 µg/L | — | — |
Well #12 Entry Point · Tested: April 2025
| Compound | Measurement | EPA Limit | Comparison |
|---|---|---|---|
| PFPeA | 0.005 µg/L | 0.003 µg/L | 63% above limit |
| PFBA | 0.220 µg/L | 6 µg/L | 4% of limit |
| lithium | <9.000 µg/L | 10 µg/L | Below limit |
| PFHxS | <0.003 µg/L | 0.004 µg/L | Below limit |
| HFPO-DA | <0.005 µg/L | 0.01 µg/L | Below limit |
| PFNA | <0.004 µg/L | 0.01 µg/L | Below limit |
| PFHxA | <0.003 µg/L | 3 µg/L | Below limit |
| 11Cl-PF3OUdS | <0.005 µg/L | 0.005 µg/L | Below limit |
| 4:2 FTS | <0.003 µg/L | 0.003 µg/L | Below limit |
| 6:2 FTS | <0.005 µg/L | 0.005 µg/L | Below limit |
| 8:2 FTS | <0.005 µg/L | 0.005 µg/L | Below limit |
| 9Cl-PF3ONS | <0.002 µg/L | 0.002 µg/L | Below limit |
| ADONA | <0.003 µg/L | 0.003 µg/L | Below limit |
| PFBS | <0.003 µg/L | 0.003 µg/L | Below limit |
| PFDA | <0.003 µg/L | 0.003 µg/L | Below limit |
| PFDoA | <0.003 µg/L | 0.003 µg/L | Below limit |
| PFHpA | <0.003 µg/L | 0.003 µg/L | Below limit |
| PFHpS | <0.003 µg/L | 0.003 µg/L | Below limit |
| PFOA | <0.004 µg/L | 0.004 µg/L | Below limit |
| PFOS | <0.004 µg/L | 0.004 µg/L | Below limit |
| PFTrDA | <0.007 µg/L | 0.007 µg/L | Below limit |
| PFUnA | <0.002 µg/L | 0.002 µg/L | Below limit |
COMBINED DISCHARGE · Tested: April 2025
| Compound | Measurement | EPA Limit | Comparison |
|---|---|---|---|
| PFBA | 0.102 µg/L | 6 µg/L | 2% of limit |
| lithium | <9.000 µg/L | 10 µg/L | Below limit |
| PFHxS | <0.003 µg/L | 0.004 µg/L | Below limit |
| HFPO-DA | <0.005 µg/L | 0.01 µg/L | Below limit |
| PFNA | <0.004 µg/L | 0.01 µg/L | Below limit |
| PFHxA | <0.003 µg/L | 3 µg/L | Below limit |
| 11Cl-PF3OUdS | <0.005 µg/L | 0.005 µg/L | Below limit |
| 4:2 FTS | <0.003 µg/L | 0.003 µg/L | Below limit |
| 6:2 FTS | <0.005 µg/L | 0.005 µg/L | Below limit |
| 8:2 FTS | <0.005 µg/L | 0.005 µg/L | Below limit |
| 9Cl-PF3ONS | <0.002 µg/L | 0.002 µg/L | Below limit |
| ADONA | <0.003 µg/L | 0.003 µg/L | Below limit |
| PFBS | <0.003 µg/L | 0.003 µg/L | Below limit |
| PFDA | <0.003 µg/L | 0.003 µg/L | Below limit |
| PFDoA | <0.003 µg/L | 0.003 µg/L | Below limit |
| PFHpA | <0.003 µg/L | 0.003 µg/L | Below limit |
| PFHpS | <0.003 µg/L | 0.003 µg/L | Below limit |
| PFOA | <0.004 µg/L | 0.004 µg/L | Below limit |
| PFOS | <0.004 µg/L | 0.004 µg/L | Below limit |
| PFPeA | <0.003 µg/L | 0.003 µg/L | Below limit |
| PFTrDA | <0.007 µg/L | 0.007 µg/L | Below limit |
| PFUnA | <0.002 µg/L | 0.002 µg/L | Below limit |
Well #10 Entry Point · Tested: April 2025
| Compound | Measurement | EPA Limit | Comparison |
|---|---|---|---|
| PFBA | 0.043 µg/L | 6 µg/L | 0.7% of limit |
| lithium | <9.000 µg/L | 10 µg/L | Below limit |
| PFHxS | <0.003 µg/L | 0.004 µg/L | Below limit |
| HFPO-DA | <0.005 µg/L | 0.01 µg/L | Below limit |
| PFNA | <0.004 µg/L | 0.01 µg/L | Below limit |
| PFHxA | <0.003 µg/L | 3 µg/L | Below limit |
| 11Cl-PF3OUdS | <0.005 µg/L | 0.005 µg/L | Below limit |
| 4:2 FTS | <0.003 µg/L | 0.003 µg/L | Below limit |
| 6:2 FTS | <0.005 µg/L | 0.005 µg/L | Below limit |
| 8:2 FTS | <0.005 µg/L | 0.005 µg/L | Below limit |
| 9Cl-PF3ONS | <0.002 µg/L | 0.002 µg/L | Below limit |
| ADONA | <0.003 µg/L | 0.003 µg/L | Below limit |
| PFBS | <0.003 µg/L | 0.003 µg/L | Below limit |
| PFDA | <0.003 µg/L | 0.003 µg/L | Below limit |
| PFDoA | <0.003 µg/L | 0.003 µg/L | Below limit |
| PFHpA | <0.003 µg/L | 0.003 µg/L | Below limit |
| PFHpS | <0.003 µg/L | 0.003 µg/L | Below limit |
| PFOA | <0.004 µg/L | 0.004 µg/L | Below limit |
| PFOS | <0.004 µg/L | 0.004 µg/L | Below limit |
| PFPeA | <0.003 µg/L | 0.003 µg/L | Below limit |
| PFTrDA | <0.007 µg/L | 0.007 µg/L | Below limit |
| PFUnA | <0.002 µg/L | 0.002 µg/L | Below limit |
Well #11 Entry Point · Tested: April 2025
| Compound | Measurement | EPA Limit | Comparison |
|---|---|---|---|
| lithium | <9.000 µg/L | 10 µg/L | Below limit |
| PFHxS | <0.003 µg/L | 0.004 µg/L | Below limit |
| HFPO-DA | <0.005 µg/L | 0.01 µg/L | Below limit |
| PFNA | <0.004 µg/L | 0.01 µg/L | Below limit |
| PFHxA | <0.003 µg/L | 3 µg/L | Below limit |
| PFBA | <0.005 µg/L | 6 µg/L | Below limit |
| 11Cl-PF3OUdS | <0.005 µg/L | 0.005 µg/L | Below limit |
| 4:2 FTS | <0.003 µg/L | 0.003 µg/L | Below limit |
| 6:2 FTS | <0.005 µg/L | 0.005 µg/L | Below limit |
| 8:2 FTS | <0.005 µg/L | 0.005 µg/L | Below limit |
| 9Cl-PF3ONS | <0.002 µg/L | 0.002 µg/L | Below limit |
| ADONA | <0.003 µg/L | 0.003 µg/L | Below limit |
| PFBS | <0.003 µg/L | 0.003 µg/L | Below limit |
| PFDA | <0.003 µg/L | 0.003 µg/L | Below limit |
| PFDoA | <0.003 µg/L | 0.003 µg/L | Below limit |
| PFHpA | <0.003 µg/L | 0.003 µg/L | Below limit |
| PFHpS | <0.003 µg/L | 0.003 µg/L | Below limit |
| PFOA | <0.004 µg/L | 0.004 µg/L | Below limit |
| PFOS | <0.004 µg/L | 0.004 µg/L | Below limit |
| PFPeA | <0.003 µg/L | 0.003 µg/L | Below limit |
| PFTrDA | <0.007 µg/L | 0.007 µg/L | Below limit |
| PFUnA | <0.002 µg/L | 0.002 µg/L | Below limit |
Well #2 Entry Point · Tested: April 2025
| Compound | Measurement | EPA Limit | Comparison |
|---|---|---|---|
| lithium | <9.000 µg/L | 10 µg/L | Below limit |
| PFHxS | <0.003 µg/L | 0.004 µg/L | Below limit |
| HFPO-DA | <0.005 µg/L | 0.01 µg/L | Below limit |
| PFNA | <0.004 µg/L | 0.01 µg/L | Below limit |
| PFHxA | <0.003 µg/L | 3 µg/L | Below limit |
| PFBA | <0.005 µg/L | 6 µg/L | Below limit |
| 11Cl-PF3OUdS | <0.005 µg/L | 0.005 µg/L | Below limit |
| 4:2 FTS | <0.003 µg/L | 0.003 µg/L | Below limit |
| 6:2 FTS | <0.005 µg/L | 0.005 µg/L | Below limit |
| 8:2 FTS | <0.005 µg/L | 0.005 µg/L | Below limit |
| 9Cl-PF3ONS | <0.002 µg/L | 0.002 µg/L | Below limit |
| ADONA | <0.003 µg/L | 0.003 µg/L | Below limit |
| PFBS | <0.003 µg/L | 0.003 µg/L | Below limit |
| PFDA | <0.003 µg/L | 0.003 µg/L | Below limit |
| PFDoA | <0.003 µg/L | 0.003 µg/L | Below limit |
| PFHpA | <0.003 µg/L | 0.003 µg/L | Below limit |
| PFHpS | <0.003 µg/L | 0.003 µg/L | Below limit |
| PFOA | <0.004 µg/L | 0.004 µg/L | Below limit |
| PFOS | <0.004 µg/L | 0.004 µg/L | Below limit |
| PFPeA | <0.003 µg/L | 0.003 µg/L | Below limit |
| PFTrDA | <0.007 µg/L | 0.007 µg/L | Below limit |
| PFUnA | <0.002 µg/L | 0.002 µg/L | Below limit |
Water utilities serving ZIP 55016
Service area boundaries are approximate and based on state filings or modeled estimates. Contact your utility to confirm exact service at a specific address.
- COTTAGE GROVEAction advised
Modeled boundaries are shown with a dashed outline.
Frequently Asked Questions about ZIP 55016 Tap Water
What contaminants are above EPA limits in ZIP 55016?
ZIP 55016 has 6 contaminants above EPA health guidelines in the latest available data, including Perfluorooctanoic acid at 13.4x the EPA guideline. The full table on this page lists every tested compound and its measured level.
Will boiling ZIP 55016 tap water remove Perfluorooctanoic acid?
Boiling tap water can kill many pathogens, but it does not remove most chemical contaminants tracked in EPA monitoring. Several dissolved contaminants can even concentrate as water evaporates. For the chemical contaminants reported in ZIP 55016, a certified filter is more reliable.
Do basic pitcher filters remove Perfluorooctanoic acid?
Basic pitcher filters are typically rated for chlorine, taste, and odor (NSF/ANSI 42), not for the broader list of contaminants tracked in EPA monitoring. Match the certification (NSF/ANSI 42, 53, 58, or P473) to the specific compounds listed in this report before assuming a filter helps.
Who provides tap water in ZIP 55016?
Public records identify COTTAGE GROVE as a primary water system associated with ZIP 55016. Service boundaries can vary by address, so confirm exact service with the utility.
When was ZIP 55016 tap water last tested?
The most recent test date used in this report is April 2025. EnviroClarity last refreshed this page on 2026-05-05.
Where can I find the official water quality report for ZIP 55016?
Every U.S. public water system is required to publish an annual Consumer Confidence Report (CCR). Contact COTTAGE GROVE or visit their website for the latest official report covering ZIP 55016. The EPA also maintains a national CCR locator.
Check another ZIP code
Nearby ZIP reports
- 55071 - St. Paul Park tap water report
- 55055 - Newport tap water report
- 55129 - Saint Paul, Woodbury tap water report
- 55076 - Inver Grove Heights tap water report
- 55125 - Saint Paul, Woodbury tap water report
- 55075 - South St. Paul tap water report
- 55077 - Inver Grove Heights tap water report
- 55119 - Greater East Side, Maplewood tap water report
Data reflects publicly reported utility records from EPA datasets and local utility disclosures. This information is educational and not medical advice.