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Deer Park Tap Water Quality Report
Deer Park's water has 3 contaminants above EPA MCLGs and 1 above EPA's legal limit (MCL, enforceable from April 26, 2029). We recommend using a certified water filter.
Water system
CITY OF DEER PARK
People Served
34,495
Health-based violations since 2020
0
CITY OF DEER PARK. EPA SDWA violation data as of Q2 2026 (downloaded 2026-07-09).
Latest sample on file
Oct 2023 · CITY OF DEER PARK
Utilities publish newer results in their annual water quality report (Consumer Confidence Report).
Is Deer Park Tap Water Safe to Drink?
We strongly recommend using a certified water filter to reduce exposure: Deer Park's water has 4 contaminants above EPA health-based guidelines. Check our filter recommendations below for NSF-certified options that can remove the specific contaminants found in Deer Park's water.
CITY OF DEER PARK, Deer Park's water system, serves 34,495 people. Water quality testing is conducted regularly and reported to the EPA. The latest sample on file for CITY OF DEER PARK is from Oct 2023.
Boil water advisories are issued by water systems and state agencies, and they change from day to day. Boil water advisories in Texas
Deer Park Water Service Areas
What these numbers actually mean for Deer Park, TX
We read Deer Park, TX’s published record and send you a short report — which findings warrant a decision, which to ignore, and what to do about it. Including when the answer is nothing.
- 3 contaminants above EPA MCLGs and 1 above EPA's legal limit (MCL, enforceable from April 26, 2029) and 6 contaminants with an EPA health goal detected in some samples (no level on file)
- 221 results on file
- 23 PFAS compounds on record
Buying a home here? Property Water Report — $49 Emailed within one business day.
Fluoride in Deer Park's water
CITY OF DEER PARK
PWSID TX1010007
CITY OF DEER PARK reported 0.25 mg/L, below the 0.7 mg/L U.S. Public Health Service recommendation.
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Recommended Water Filters for Deer Park
Based on Deer Park's water quality data, these NSF-certified filters are recommended to remove contaminants above EPA's health goals (MCLGs) or legal limits (MCL).
Solventum Purification Inc.
3MRO401
NSF Certified:
Daily Production
11.48 gpd
Highlights:
- NSF-58 certified reverse osmosis system
- 11.48 GPD production capacity
- Reduces total dissolved solids (TDS) for purer water
Removes 15 contaminants:
+10 more
Copper, Cryptosporidium, Fluoride, Lead, Radium 226, Radium 228, Radium, combined (-226 & -228), Selenium, Total Dissolved Solids, Turbidity
Solventum Purification Inc.
3MRO301
NSF Certified:
Daily Production
11.48 gpd
Highlights:
- NSF-58 certified reverse osmosis system
- 11.48 GPD production capacity
- Reduces total dissolved solids (TDS) for purer water
Removes 15 contaminants:
+10 more
Copper, Cryptosporidium, Fluoride, Lead, Radium 226, Radium 228, Radium, combined (-226 & -228), Selenium, Total Dissolved Solids, Turbidity
Culligan
ZeroWater
NSF Certified:
Flow Rate
1.9 gpm
Daily Production
1 gpd
Highlights:
- Compact design
- Easy to set up
- Affordable
- NSF-42, NSF-53, NSF-401 certified
Removes 19 contaminants:
+14 more
Strontium, Molybdenum, Fluoride, Uranium, Lead, Total PFAS, Chlorine, 25, Phosphorus, Bicarbonate, Calcium, Carbonate, Magnesium, Sodium
Santevia
Bath Filter
NSF Certified:
Flow Rate
0.36 gpm
Highlights:
- Organic cotton design reduces plastic used in construction
- Affordable upfront & ongoing cost
- The only bath filter that removed 100% chlorine with “normal” faster faucet flow
Removes 1 contaminants:
Verify Your Water Quality with Independent Testing
With 3 contaminants above EPA MCLGs and 1 above EPA's legal limit (MCL, enforceable from April 26, 2029) and 6 contaminants with an EPA health goal detected in some samples (no level on file), independent laboratory testing provides a second opinion and can track changes over time.
SimpleLab
Advanced Home Water Test
$269
Comprehensive water analysis testing over 200 contaminants including bacteria, heavy metals, and chemical compounds.
Tap Score
Haloacetic Acids (HAA9) Test
$275
Tests for disinfection byproducts formed when chlorine reacts with organic matter in water treatment.
Tap Score
PFAS Forever Chemicals Test
$339.95
Specialized test for PFOA, PFOS, and 24 other forever chemicals. Essential for areas near military bases, airports, or industrial sites.
With 4 contaminants above health guidelines, you may want to explore water purification options. Learn how to make distilled water at home for applications like humidifiers, CPAP machines, and baby formula.
What Deer Park's water readings can explain
Utility-reported data for Deer Park includes manganese, sulfate and a chlorine-based disinfectant — the readings behind these common tap water questions. We publish a city-level hardness figure for Deer Park, resolved from its water systems where they report one and estimated from county sampling where they do not. Each page starts with the hot-tap and cold-tap check, then shows what your own water system reported.
On a private well near Deer Park? Public-water results do not apply to private wells. See Harris County well water testing and USGS risk data — modeled arsenic, nitrate, and the tests to run.
Water softener cost and installation in Deer Park
Deer Park's tap water measures 5.0 grains per gallon (85.3 mg/L) — moderately hard on the USGS scale, below the range where scale is usually worth treating.
Water softener cost for 5.0 gpg water in Deer Park — equipment and local installation labour for your ZIP code, with the sizing arithmetic shown in full. For the national picture first, read what a water softener costs — equipment, installation labour and ten-year ownership, each separated out. For Texas as a whole, read water softener cost in Texas — priced against the plumber wage published for the state.
Frequently Asked Questions About Deer Park Tap Water
Deer Park's water has 3 contaminants above EPA MCLGs and 1 above EPA's legal limit (MCL, enforceable from April 26, 2029). We strongly recommend using a certified water filter to reduce exposure to these contaminants. Check our filter recommendations below for NSF-certified options that can remove the specific contaminants found in Deer Park's water.
Spotted something off on this page?
Residents keep our data honest.
This form corrects our data; it does not reach CITY OF DEER PARK. For a problem with your water now (discolored water, no water, low pressure, a leak), contact CITY OF DEER PARK directly.
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