CYPRESS, Texas Tap Water Quality

75,768 people served · 145 water systems

Failing

CYPRESS, Texas is a mid-sized community with 75,768 residents served by 145 distinct public water systems. Water service covers ZIP codes 77410, 77429, 77433.

CYPRESS has accumulated a significant number of EPA health-based violations. Reviewing the contaminants involved, requesting your utility's Consumer Confidence Report, and using certified point-of-use filtration is strongly advisable.

EPA reporting identifies Lead, Lead, Coliform Bacteria, Total Trihalomethanes (TTHMs), E. Coli, Radium, and Arsenic among the regulated contaminants associated with CYPRESS's recent health-based violations. Each contaminant has different sources, health implications, and recommended mitigation steps — links to the full EPA reference for each are listed alongside the violation history below.

Last updated: 2026-05-18 · Source: EPA SDWIS

Location

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Centered on ZIP-code centroids of water systems serving this city.

ZIP Codes Served

77410 77429 77433

Health-Based Violations (Last 5 Years)

EPA Maximum Contaminant Level exceedances reported by water systems serving CYPRESS. Each entry explains the contaminant, the health risk, and recommended precautions, and links to a full guide.

Total Trihalomethanes (TTHMs)disinfectant

EPA Code 2950 · Maximum Contaminant Level Exceedance

290

violations

EPA Limit

0.08 mg/L

Last Reading

.101 MG/L

First Reported

Jan 2021

Most Recent

Oct 2025

What this violation means

Total Trihalomethanes (TTHMs) form when chlorine reacts with naturally occurring organic matter — leaves, soil, algae — in source water. They are among the most commonly reported violations because utilities pulling from surface water (rivers, lakes, reservoirs) struggle to balance disinfection with byproduct formation. Long-term exposure has been linked to bladder cancer and adverse pregnancy outcomes.

Recommended precautions

→Activated carbon filters (pitcher, faucet, or under-sink) effectively reduce TTHMs.
→Letting water sit uncovered allows TTHMs to off-gas — leave a pitcher in the fridge for several hours.
→Shower with the bathroom fan on; TTHMs can volatilize into the air during hot showers.
→Boiling reduces TTHMs through volatilization, but only after extended boiling.

Read the complete guide to Total Trihalomethanes (TTHMs)

Arsenicchemical

EPA Code 1005 · Maximum Contaminant Level Exceedance

180

violations

EPA Limit

0.01 mg/L

Last Reading

.018 MG/L

First Reported

Jan 2021

Most Recent

Oct 2025

What this violation means

Arsenic is a known human carcinogen that occurs naturally in groundwater across many parts of the United States, especially the Southwest and parts of New England. Long-term exposure even at low levels has been linked to bladder, lung, and skin cancer, as well as cardiovascular disease and developmental effects in children.

Recommended precautions

→Reverse osmosis filtration removes arsenic effectively.
→Distillation also removes arsenic — point-of-use distillers work for drinking and cooking water.
→Boiling does NOT remove arsenic. It actually concentrates it as water evaporates.
→If your well water has arsenic, test annually and treat at the point of entry.

Read the complete guide to Arsenic

E. Colimicrobial

EPA Code 0300 · Treatment Technique Violation

violations

EPA Limit

0 per 100 mL presence/absence

Last Reading

—

First Reported

Apr 2025

Most Recent

Apr 2025

What this violation means

E. coli detection is an EPA Tier 1 acute violation, requiring same-day public notification. It confirms that fecal matter has entered the drinking water supply, posing immediate health risks — particularly to children, the elderly, and immunocompromised individuals.

Recommended precautions

→Do not drink the water until the utility has lifted the advisory.
→Boil water for at least one minute (three minutes at elevations above 6,500 ft).
→Disinfect dishes and surfaces that touched contaminated water.
→Seek medical attention if you develop bloody diarrhea or persistent vomiting.

Read the complete guide to E. Coli

Radiumradiological

EPA Code 4000 · Maximum Contaminant Level Exceedance

violation

EPA Limit

5 pCi/L

Last Reading

16 PCI/L

First Reported

Jan 2025

Most Recent

Jan 2025

What this violation means

Radium-226 and Radium-228 occur naturally in groundwater, particularly in regions with granite or sandstone aquifers. Long-term ingestion increases the risk of bone, sinus, and other cancers because radium concentrates in bone tissue.

Recommended precautions

→Reverse osmosis and ion exchange (water softeners) remove radium.
→Boiling does NOT remove radium and may concentrate it.
→Private well users in radium-rich geology should test every 3–5 years.

Read the complete guide to Radium

Leadchemical

EPA Code 5200 · Treatment Technique Violation

violations

EPA Limit

0.015 mg/L

Last Reading

—

First Reported

Oct 2024

Most Recent

Oct 2024

What this violation means

Lead is a potent neurotoxin with no safe exposure level. In drinking water it primarily enters via corroded lead service lines, lead-soldered copper pipes, and brass fixtures. Children under 6 and pregnant women face the highest risk because lead disrupts developing nervous and skeletal systems.

Recommended precautions

→Run cold tap water 30–120 seconds before drinking or cooking, especially after the tap has been unused for hours.
→Never cook with hot tap water — heat increases lead leaching from pipes.
→Use an NSF/ANSI 53 certified filter for lead removal (carbon block or reverse osmosis).
→If you have children, get blood lead levels tested by your pediatrician.

Read the complete guide to Lead

Leadchemical

EPA Code 5000 · Treatment Technique Violation

violations

EPA Limit

0.015 mg/L

Last Reading

—

First Reported

Mar 2022

Most Recent

Oct 2023

What this violation means

Recommended precautions

→Run cold tap water 30–120 seconds before drinking or cooking, especially after the tap has been unused for hours.
→Never cook with hot tap water — heat increases lead leaching from pipes.
→Use an NSF/ANSI 53 certified filter for lead removal (carbon block or reverse osmosis).
→If you have children, get blood lead levels tested by your pediatrician.

Read the complete guide to Lead

Coliform Bacteriamicrobial

EPA Code 0700 · Treatment Technique Violation

violations

EPA Limit

0 per 100 mL presence/absence

Last Reading

—

First Reported

Jan 2023

Most Recent

Jan 2023

What this violation means

Total coliform bacteria are themselves usually harmless, but their presence signals that the water distribution system has a vulnerability — typically a cracked pipe, loss of pressure, or back-siphonage — that could allow disease-causing pathogens to enter. Repeated coliform-positive samples trigger mandatory utility investigation.

Recommended precautions

→If your utility issues a boil-water advisory, boil all drinking and cooking water for at least one minute.
→Use bottled water until the advisory is lifted.
→Ice from icemakers and beverages made before the advisory should be discarded.
→UV light and chlorination both kill coliform bacteria — most home filters do not.

Read the complete guide to Coliform Bacteria

Source: EPA Safe Drinking Water Information System (SDWIS). Health-based violations only. Older violations may have been resolved; check your utility's most recent Consumer Confidence Report for current status.

Water Systems Serving CYPRESS

WAYNEWOOD PLACE CIVIC CLUB

PWSID: TX1011186

147 served

BLUE BELL MANOR SUBDIVISION

PWSID: TX1010647

2,607 served

DOGWOOD TREE WATER SYSTEM

PWSID: TX1010927

48 served

QUAILWOOD WATER SYSTEM

PWSID: TX1011475

48 served

FAULKEY GULLY MUD

PWSID: TX1011602

8,193 served

ENCHANTED VALLEY ESTATES WSC

PWSID: TX1010978

270 served

WOOD ACRES MHP

PWSID: TX1700426

78 served

4 violations

RIVER PLANTATION MUD

PWSID: TX1700028

2,898 served

CYPRESS VILLAGE TRAILER & RV PARK

PWSID: TX1010603

120 served

THE HOUSTON OAKS GOLF AND COUNTRY CLUB

PWSID: TX2370030

54 served

8 violations

HARRIS COUNTY MUD 248

PWSID: TX1013306

2,076 served

COLUMBUS OAKS APARTMENTS

PWSID: TX0450049

96 served

HARRIS COUNTY MUD 58

PWSID: TX1011704

2,289 served

MONTGOMERY COUNTY MUD 212

PWSID: TX1700967

45 served

CORNERSTONE MOBILE HOME COMMUNITY

PWSID: TX1013193

81 served

TOWER OAK BEND WSC

PWSID: TX1011981

390 served

CALVARY UTILITY

PWSID: TX1701027

0 served

LAZY ACRES MOBILE HOME PARK

PWSID: TX1013249

75 served

3 violations

SOUTHWOOD ESTATES

PWSID: TX0200403

1,347 served

CONROE RESORT

PWSID: TX1700416

1,068 served

3 violations

KUCERA FARMS SUBDIVISION

PWSID: TX0200665

150 served

MOUNT SYLVAN WATER SYSTEM

PWSID: TX2120034

1,056 served

BEECHWOOD SUBDIVISION

PWSID: TX0200245

411 served

GUADALUPE BLANCO RIVER AUTHORITY

PWSID: TX0290005

0 served

35 violations

EAST PONDER ESTATES

PWSID: TX0610161

363 served

1 violation

HILLTOWN ADDITION

PWSID: TX0610112

2,184 served

GARDEN ACRES SUBDIVISION

PWSID: TX0920031

252 served

CYPRESS BEND SUBDIVISION

PWSID: TX1010119

819 served

SANDY MEADOW ESTATES SUBDIVISION

PWSID: TX0200335

237 served

53 violations

BERNARD OAKS SUBDIVISION

PWSID: TX0200338

294 served

ROSHARON ROAD ESTATES SUBDIVISION

PWSID: TX0200346

219 served

GRASSLANDS

PWSID: TX0200360

516 served

WOLF GLEN WATER SYSTEM

PWSID: TX0200370

108 served

BRIAR MEADOWS

PWSID: TX0200410

108 served

GBRA CALHOUN COUNTY RURAL WATER SYSTEM

PWSID: TX0290007

4,482 served

27 violations

LAKEVIEW N MARSHALL OAKS SOMMERVILLE PLA

PWSID: TX0260010

642 served

MARK V ESTATES

PWSID: TX0200432

330 served

SAN BERNARD RIVER ESTATES

PWSID: TX0200460

207 served

LEE RIDGE SUBDIVISION

PWSID: TX0200506

78 served

BAYRIDGE SUBDIVISION WATER SYSTEM

PWSID: TX0360028

234 served

APACHE HILLS

PWSID: TX0260019

243 served

WHISPERING WOODS

PWSID: TX0260032

51 served

LITTLE OAK FOREST SUBDIVISION

PWSID: TX0260037

189 served

ROSHARON TOWNSHIP

PWSID: TX0200036

354 served

SNUG HARBOR SUBDIVISION

PWSID: TX0200053

135 served

2 violations

RIVERSIDE ESTATES

PWSID: TX0200058

297 served

WILCO WATER

PWSID: TX0200083

243 served

41 violations

MOORELAND SUBDIVISION WATER SYSTEM

PWSID: TX0200094

201 served

RYAN LONG SUBDIVISION 2 WATER SYSTEM

PWSID: TX0200108

57 served

PALOMA ACRES SUBDIVISION

PWSID: TX0200597

390 served

COLONY TRAILS SUBDIVISION

PWSID: TX0200604

228 served

CROWLEY II ACRE SUBDIVISION

PWSID: TX1260012

336 served

DEMI JOHN PLACE WATER SYSTEM

PWSID: TX0200185

336 served

13 violations

ANGLE ACRES WATER SYSTEM

PWSID: TX0200244

153 served

OAK FOREST LAKEWAY MANOR

PWSID: TX1980017

159 served

CAPE TRANQUILITY SYSTEM

PWSID: TX1070176

225 served

RIVERBOAT BEND TRAILER PARK

PWSID: TX1460088

129 served

HUFFMAN HEIGHTS SUBDIVISION

PWSID: TX1010700

435 served

SIX LAKES SUBDIVISION

PWSID: TX1460015

195 served

BAR D RANCHETTES

PWSID: TX1460076

117 served

BEAUMONT PLACE

PWSID: TX1010098

1,917 served

CASTLEWOOD SUBDIVISION

PWSID: TX1010111

1,053 served

TEJAS LANDING SUBDIVISION

PWSID: TX0790656

288 served

WILLOWBREEZE FARM SUBDIVISION

PWSID: TX0200744

20 served

18 violations

STONE HEDGE ESTATES

PWSID: TX1700102

129 served

2 violations

SWEETGUM FOREST

PWSID: TX1700113

87 served

PIONEER TRAILS SUBDIVISION

PWSID: TX1700114

384 served

LOCH NESS COVE SUBDIVISION WATER SYSTEM

PWSID: TX1700148

267 served

CRYSTAL SYSTEMS

PWSID: TX2120015

3,879 served

TEJAS LAKES SUBDIVISION

PWSID: TX0790504

297 served

SPANISH BIT PLANTATION SUBDIVISION

PWSID: TX1610102

126 served

BRAZOS OAKS SUBDIVISION

PWSID: TX0200639

390 served

CRYSTAL LAKE ESTATES

PWSID: TX0790510

138 served

SPRING CREEK PURE UTILITIES

PWSID: TX1870149

498 served

77 violations

BENTWOOD BEND WATER SYSTEM

PWSID: TX1870154

87 served

COMMODORE CAPE WATER SYSTEM

PWSID: TX1870026

321 served

16 violations

FOREST SPRINGS WATER SYSTEM

PWSID: TX1870059

510 served

TAYLOR LAKE ESTATES WATER SYSTEM

PWSID: TX1870064

416 served

LAKESIDE VILLAGE SUBDIVISION

PWSID: TX1870095

290 served

OAK SHORES WATER SYSTEM

PWSID: TX2270060

696 served

HAZY HOLLOW EAST ESTATES

PWSID: TX1700013

2,424 served

JOY VILLAGE

PWSID: TX1700021

231 served

LAKEWOOD COLONY

PWSID: TX1700029

195 served

SHADY BROOK ACRES

PWSID: TX1700031

189 served

12 violations

SPRING FOREST SUBDIVISION

PWSID: TX1700033

759 served

PEACH CREEK OAKS SUBDIVISION

PWSID: TX1700051

250 served

BROOKSHIRES CAMP JOY WATER SYSTEM

PWSID: TX2300015

348 served

FRIENDSHIP WATER SYSTEM

PWSID: TX2300020

330 served

COUNTRY CLUB ESTATES

PWSID: TX2300021

96 served

ROSEWOOD WATER SYSTEM

PWSID: TX2300026

639 served

RIVER RANCH

PWSID: TX0790425

276 served

GARDEN VALLEY RESORT

PWSID: TX2120081

510 served

STALLION LAKE RANCH

PWSID: TX2120104

399 served

TEXAS WATER SUPPLY

PWSID: TX1870131

213 served

14 violations

WOODHAVEN ESTATES

PWSID: TX1700481

165 served

WILDWOOD SHORES

PWSID: TX2360078

968 served

TANGLEWOOD FOREST SUBDIVISION

PWSID: TX2040054

118 served

12 violations

OAKS AT HOUSTON POINT

PWSID: TX0360126

165 served

71 violations

BEAR CREEK ESTATES

PWSID: TX2200336

99 served

SMETANA FOREST

PWSID: TX0210010

150 served

48 violations

BENCHLEY OAKS SUBDIVISION

PWSID: TX0210039

567 served

8 violations

LAKEWOOD ESTATES

PWSID: TX0210042

202 served

WHITE TAIL RIDGE LAKES ESTATES

PWSID: TX2290012

233 served

BARLOW LAKE ESTATES

PWSID: TX2290015

41 served

TOWN BLUFF WATER SYSTEM

PWSID: TX2290043

34 served

PORTER TERRACE

PWSID: TX1700161

417 served

RIVER CLUB WATER

PWSID: TX1700185

273 served

3 violations

ALLENDALE WATER SYSTEM

PWSID: TX1700187

180 served

HILLGREEN SUBDIVISION WATER CO

PWSID: TX1700539

138 served

BAYOU COLONY SUBDIVISION

PWSID: TX0200358

120 served

STONERIDGE LAKE SUBDIVISION

PWSID: TX0200624

117 served

10 violations

OAK MEADOWS ESTATES SUBDIVISION

PWSID: TX0200566

174 served

HIGHLAND RIDGE SUBDIVISION

PWSID: TX1010157

591 served

LOST LAKES

PWSID: TX0360108

217 served

COLES CROSSING

PWSID: TX0360114

1,521 served

15 violations

RESERVOIR ACRES SUBDIVISION

PWSID: TX1010197

738 served

SPRING CREEK VALLEY ESTATES

PWSID: TX1010213

645 served

TALL CEDARS MOBILE HOME SUBDIVISION

PWSID: TX1010219

156 served

URBAN ACRES SUBDIVISION

PWSID: TX1010252

570 served

SPRINGMONT SUBDIVISION

PWSID: TX1010255

495 served

FOREST MANOR SUBDIVISION

PWSID: TX1010264

300 served

HIGHLAND MOBILE HOME SUBDIVISION

PWSID: TX1010285

96 served

MEADOWLAKE ESTATES

PWSID: TX1010287

984 served

COUNTRY MEADOWS

PWSID: TX0200273

141 served

COUNTRY ACRE ESTATES

PWSID: TX0200274

132 served

CORONADO COUNTRY

PWSID: TX0200275

141 served

BLUE SAGE GARDENS SUBDIVISION

PWSID: TX0200323

117 served

COLONY COVE SUBDIVISION WATER SYSTEM

PWSID: TX0200324

171 served

BRANDI ESTATES

PWSID: TX0200325

93 served

GREENGATE ACRES SUBDIVISION

PWSID: TX1010132

318 served

NITSCH & SON UTILITY

PWSID: TX1010145

2,190 served

BELL MANOR SUBDIVISION

PWSID: TX1260080

87 served

ROCK CREEK ESTATES

PWSID: TX1260082

132 served

BUFFALO CREEK

PWSID: TX1260084

300 served

JOHN DAME

PWSID: TX1260090

159 served

MARTIN CREEK ESTATES

PWSID: TX1260122

84 served

HEATHERGATE ESTATES

PWSID: TX1011302

342 served

GRANTWOODS WATER SUPPLY CORPORATION

PWSID: TX1010130

78 served

WOODLAND ACRES SUBDIVISION

PWSID: TX0360027

643 served

28 violations

RIVERWOOD ESTATES

PWSID: TX1460146

585 served

20 violations

OAKLAND VILLAGE MOBILE HOME COMMUNITY

PWSID: TX1011049

150 served

MAPLE LEAF MOBILE HOME SUBDIVISION

PWSID: TX1011493

861 served

WHITE OAK VALLEY ESTATES

PWSID: TX1700036

750 served

HOLIDAY HARBOR SUBDIVISION

PWSID: TX1610022

75 served

THE HIGHLANDS

PWSID: TX1700909

0 served

2 violations

What Can You Do?

✅ Request your utility's annual Consumer Confidence Report (CCR) — required by law.
✅ Use an NSF-certified water filter if violations involve lead, arsenic, or PFAS.
✅ Run cold water for 30 seconds before drinking if you have older plumbing (reduces lead).
✅ Check back monthly — we update data from the EPA every 30 days.

About this data

This overview reflects EPA SDWIS data published as of 2026-05-18. It covers active Community Water Systems (CWS) that exceeded federal Maximum Contaminant Levels during the past five-year EPA reporting window. For up-to-the-minute information, request a current Consumer Confidence Report from your utility, or review the EPA's public dashboard.

Frequently Asked Questions

Is CYPRESS, Texas tap water safe to drink?▼

This city's water had numerous EPA violations in the last 5 years. Consider filtered water.

How many EPA violations does CYPRESS have?▼

CYPRESS has 546 EPA health-based water violations in the last 5 years across 145 water systems serving 75,768 people.

What contaminants have been found in CYPRESS water?▼

The following EPA-regulated contaminants have been detected: 5200, 5000, 0700, 2950, 0300, 4000, 1005. View details about each contaminant, health effects, and recommended precautions above in the violations table.

Should I use a water filter in CYPRESS?▼

Using an NSF-certified water filter is recommended if your area has violations involving lead, arsenic, or PFAS. For other contaminants, consult your local water utility. Check the annual Consumer Confidence Report (CCR) for detailed guidance.

What should I do if there are violations in CYPRESS?▼

Request your water utility's annual Consumer Confidence Report (CCR), which is required by the EPA. Follow the utility's guidance on boil water advisories. Run cold water for 30 seconds before drinking if you have older plumbing. Use an NSF-certified filter if needed based on your water system's violations.