Water system
City of Deer Park
What this means for you
- Is it safe to drink right now?
- Based on the latest EPA data, City of Deer Park has no unresolved health-based violations from the past year. Water that meets federal standards is generally considered safe to drink for most healthy people.
- Should I use a filter?
- Optional. Nothing in this data strongly calls for one. Many people still filter for chlorine taste and odor.
- What kind of filter?
- For taste and odor (chlorine/chloramine), an NSF/ANSI 42 pitcher or faucet filter is enough. See matched standards and product picks.
This is general information from public EPA data, not medical advice. Lead often comes from a home’s own pipes, so only a test of your tap can tell your exposure. If you are pregnant, caring for an infant, or have a weakened immune system, ask your doctor or health department.
PFAS (“forever chemicals”), EPA UCMR 5
| Chemical | Highest location average | Highest single sample | Federal limit | Detections/samples |
|---|---|---|---|---|
| PFBS | 1.6 ppt | 3.1 ppt | none | 1/16 |
| PFNA | 2.2 ppt | 4.3 ppt | 10 ppt (proposed repeal) | 1/16 |
| PFOS | 3.8 ppt | 7.5 ppt | 4 ppt | 1/16 |
3 PFAS tested and not detected
PFHxS, HFPO-DA, PFOA (16 samples each, below EPA minimum reporting levels).
Hazard Index (PFHxS, PFNA, GenX, PFBS): 0.22 (limit 1.0, proposed for repeal).
Averages are per sampling location across UCMR 5 samples (non-detects counted as 0), approximating the rule’s running annual average. Not an official compliance determination; PFOA/PFOS MCL compliance begins April 26, 2029.
Lead and copper
Violations (last 5 years)
| Began | Type | Contaminant / rule | Status |
|---|---|---|---|
| 2025-10-01 | Missed or late testing/reporting | Dalapon | Resolved |
| 2025-10-01 | Missed or late testing/reporting | Toluene | Resolved |
| 2025-10-01 | Missed or late testing/reporting | Dinoseb | Resolved |
| 2025-10-01 | Missed or late testing/reporting | 1,2,4-Trichlorobenzene | Resolved |
| 2025-10-01 | Missed or late testing/reporting | 1,1,2-Trichloroethane | Resolved |
| 2025-10-01 | Missed or late testing/reporting | 1,2-Dichloropropane | Resolved |
| 2025-10-01 | Missed or late testing/reporting | Atrazine | Resolved |
| 2025-10-01 | Missed or late testing/reporting | Tetrachloroethylene | Resolved |
| 2025-10-01 | Missed or late testing/reporting | Methoxychlor | Resolved |
| 2025-10-01 | Missed or late testing/reporting | Benzo(a)pyrene | Resolved |
| 2025-10-01 | Missed or late testing/reporting | o-Dichlorobenzene | Resolved |
| 2025-10-01 | Missed or late testing/reporting | Pentachlorophenol | Resolved |
| 2025-10-01 | Missed or late testing/reporting | HEXACHLOROBENZENE | Resolved |
| 2025-10-01 | Missed or late testing/reporting | Endrin | Resolved |
| 2025-10-01 | Missed or late testing/reporting | LASSO | Resolved |
| 2025-10-01 | Missed or late testing/reporting | Trichloroethylene | Resolved |
| 2025-10-01 | Missed or late testing/reporting | Toxaphene | Resolved |
| 2025-10-01 | Missed or late testing/reporting | Ethylbenzene | Resolved |
| 2025-10-01 | Missed or late testing/reporting | Simazine | Resolved |
| 2025-10-01 | Missed or late testing/reporting | Chlordane | Resolved |
| 2025-10-01 | Missed or late testing/reporting | Styrene | Resolved |
| 2025-10-01 | Missed or late testing/reporting | Picloram | Resolved |
| 2025-10-01 | Missed or late testing/reporting | DICHLOROMETHANE | Resolved |
| 2025-10-01 | Missed or late testing/reporting | Hexachlorocyclopentadiene | Resolved |
| 2025-10-01 | Missed or late testing/reporting | Vinyl chloride | Resolved |
Filters matched to this water
Look for filters certified (NSF, IAPMO or WQA) to these standards for the specific contaminant. Buttons open the maker’s page or an Amazon search; use “Check NSF listing” to verify a model’s claims. No affiliate links yet — grades are never sold.
PFAS (other)
NSF/ANSI 58 (RO, total PFAS claim)NSF/ANSI 53 (check claim)PFOS
NSF/ANSI 53 (PFOA/PFOS claim)NSF/ANSI 58 (RO)Chlorine/chloramine taste
NSF/ANSI 42Annual water quality report
Utilities must publish a Consumer Confidence Report every year by July 1. Find it on the utility’s website or ask them directly; EPA explains how.