PWS-level water intelligence

Cypress, TX Water Quality by Public Water System

Research 50 verified Cypress-area public water systems and PWS-scoped water-quality summaries across 59 classified district contexts. Confirm the utility first.

✓ Official sources✓ System-specific✓ No invented city averages

Evidence status

Coverage model: 59 district contexts / 50 verified PWSs

A Cypress mailing address does not identify the utility. Match the current bill or official district boundary to the PWS before using any result.

Measurements published

Cypress is not one public water system. All 59 district contexts intersecting ZIPs 77429 and 77433 are now classified, with 50 verified active PWS identities. Forty-five PWSs have normalized TCEQ measurement summaries; five newly resolved identity contexts remain measurement-free until PWS-specific results are normalized.

System resolution

Which water system applies?

HARRIS COUNTY MUD 165

TX1012187

Intersects Cypress ZCTA 77433. Latest TCEQ summaries: lead 1.3 ppb; copper 0.051 ppm. Monitoring periods vary; confirm this PWS before using the values.

NORTHWEST HARRIS COUNTY MUD 5

TX1010884

Intersects Cypress ZCTA 77429. Latest TCEQ summaries: lead 0 ppb; copper 0.06 ppm; TTHM 11 ppb; HAA5 12 ppb. Monitoring periods vary; confirm this PWS before using the values.

HARRIS COUNTY MUD 105

TX1011227

Intersects Cypress ZCTA 77433. Latest TCEQ summaries: lead 1.6 ppb; copper 0.182 ppm; TTHM 0 ppb; HAA5 0 ppb. Monitoring periods vary; confirm this PWS before using the values.

REMINGTON MUD 1

TX1013074

Intersects Cypress ZCTA 77433. Latest TCEQ summaries: lead 0 ppb; copper 0.251 ppm; TTHM 19 ppb; HAA5 13 ppb. Monitoring periods vary; confirm this PWS before using the values.

HARRIS COUNTY MUD 157

TX1011430

Intersects Cypress ZCTA 77433. Latest TCEQ summaries: lead 1 ppb; copper 0.0708 ppm; TTHM 21 ppb; HAA5 16 ppb. Monitoring periods vary; confirm this PWS before using the values.

CYPRESS HILL MUD 1

TX1012378

Intersects Cypress ZCTA 77429 and 77433. Latest TCEQ summaries: lead 2.2 ppb; copper 0.25 ppm; TTHM 7 ppb; HAA5 0 ppb. Monitoring periods vary; confirm this PWS before using the values.

HARRIS COUNTY MUD 489

TX1013628

Intersects Cypress ZCTA 77433. Latest TCEQ summaries: lead 1.5 ppb; copper 0.101 ppm; TTHM 29 ppb; HAA5 14 ppb. Monitoring periods vary; confirm this PWS before using the values.

HARRIS COUNTY MUD 391

TX1013253

Intersects Cypress ZCTA 77429 and 77433. Latest TCEQ summaries: lead 0.7 ppb; copper 0.0685 ppm; TTHM 0 ppb; HAA5 0 ppb. Monitoring periods vary; confirm this PWS before using the values.

FAULKEY GULLY MUD

TX1011602

Intersects Cypress ZCTA 77429. Latest TCEQ summaries: lead 1.5 ppb; copper 0.13 ppm; TTHM 12 ppb; HAA5 10 ppb. Monitoring periods vary; confirm this PWS before using the values.

NORTHWEST HARRIS COUNTY MUD 9

TX1011599

Intersects Cypress ZCTA 77429. Latest TCEQ summaries: lead 1 ppb; copper 0.1613 ppm; TTHM 10 ppb; HAA5 8 ppb. Monitoring periods vary; confirm this PWS before using the values.

NORTHWEST HARRIS COUNTY MUD 10

TX1011649

Intersects Cypress ZCTA 77429. Latest TCEQ summaries: lead 0.6 ppb; copper 0.465 ppm; TTHM 0 ppb; HAA5 0 ppb. Monitoring periods vary; confirm this PWS before using the values.

HARRIS COUNTY MUD 419

TX1013335

Intersects Cypress ZCTA 77433. Latest TCEQ summaries: lead 1.1 ppb; copper 0.0248 ppm; TTHM 16 ppb; HAA5 14 ppb. Monitoring periods vary; confirm this PWS before using the values.

LAKE FOREST UTILITY DISTRICT

TX1010494

Intersects Cypress ZCTA 77429. Latest TCEQ summaries: lead 12.7 ppb; copper 0.179 ppm; TTHM 7 ppb; HAA5 0 ppb. Monitoring periods vary; confirm this PWS before using the values.

HARRIS COUNTY MUD 196

TX1013002

Intersects Cypress ZCTA 77433. Latest TCEQ summaries: lead 0 ppb; copper 0.232 ppm; TTHM 21 ppb; HAA5 16 ppb. Monitoring periods vary; confirm this PWS before using the values.

HARRIS COUNTY MUD 433

TX1013350

Intersects Cypress ZCTA 77433. Latest TCEQ summaries: lead 0 ppb; copper 0.0105 ppm; TTHM 20 ppb; HAA5 14 ppb. Monitoring periods vary; confirm this PWS before using the values.

View 35 additional verified PWS contexts

HARRIS COUNTY MUD 354

TX1012965

Intersects Cypress ZCTA 77433. Latest TCEQ summaries: lead 0.6 ppb; copper 0.556 ppm; TTHM 2 ppb; HAA5 0 ppb. Monitoring periods vary; confirm this PWS before using the values.

HARRIS COUNTY MUD 364

TX1013132

Intersects Cypress ZCTA 77429. Latest TCEQ summaries: lead 0 ppb; copper 0.15 ppm; TTHM 1 ppb; HAA5 0 ppb. Monitoring periods vary; confirm this PWS before using the values.

HARRIS COUNTY MUD 70

TX1011690

Intersects Cypress ZCTA 77433. Latest TCEQ summaries: lead 1.9 ppb; copper 0.114 ppm; TTHM 22 ppb; HAA5 16 ppb. Monitoring periods vary; confirm this PWS before using the values.

HARRIS COUNTY MUD 502

TX1013494

Intersects Cypress ZCTA 77433. Latest TCEQ summaries: lead 0 ppb; copper 0.0089 ppm; TTHM 17 ppb; HAA5 14 ppb. Monitoring periods vary; confirm this PWS before using the values.

HARRIS COUNTY MUD 501

TX1013403

Intersects Cypress ZCTA 77433. Latest TCEQ summaries: lead 1.2 ppb; copper 0.0289 ppm; TTHM 23 ppb; HAA5 13 ppb. Monitoring periods vary; confirm this PWS before using the values.

HARRIS COUNTY MUD 360

TX1012897

Intersects Cypress ZCTA 77429. Latest TCEQ summaries: lead 0 ppb; copper 0.366 ppm; TTHM 16 ppb; HAA5 2 ppb. Monitoring periods vary; confirm this PWS before using the values.

HARRIS COUNTY MUD 365

TX1013009

Intersects Cypress ZCTA 77429. Latest TCEQ summaries: lead 0 ppb; copper 0.29 ppm; TTHM 3 ppb; HAA5 0 ppb. Monitoring periods vary; confirm this PWS before using the values.

HARRIS COUNTY MUD 69

TX1010600

Intersects Cypress ZCTA 77429. Latest TCEQ summaries: lead 3.8 ppb; copper 0.0416 ppm; TTHM 6 ppb; HAA5 0 ppb. Monitoring periods vary; confirm this PWS before using the values.

HARRIS COUNTY MUD 397

TX1013295

Intersects Cypress ZCTA 77433. Latest TCEQ summaries: lead 0 ppb; copper 0.0589 ppm; TTHM 0 ppb; HAA5 0 ppb. Monitoring periods vary; confirm this PWS before using the values.

HARRIS COUNTY MUD 172

TX1012970

Intersects Cypress ZCTA 77433. Latest TCEQ summaries: lead 0.5 ppb; copper 0.153 ppm; TTHM 22 ppb; HAA5 14 ppb. Monitoring periods vary; confirm this PWS before using the values.

HARRIS COUNTY MUD 322

TX1012542

Intersects Cypress ZCTA 77433. Latest TCEQ summaries: lead 2.2 ppb; copper 0.584 ppm; TTHM 6 ppb; HAA5 0 ppb. Monitoring periods vary; confirm this PWS before using the values.

HARRIS COUNTY MUD 173

TX1012971

Intersects Cypress ZCTA 77433. Latest TCEQ summaries: lead 1.3 ppb; copper 0.417 ppm; TTHM 24 ppb; HAA5 16 ppb. Monitoring periods vary; confirm this PWS before using the values.

HARRIS COUNTY MUD 264

TX1012330

Intersects Cypress ZCTA 77433. Latest TCEQ summaries: lead 0.9 ppb; copper 0.122 ppm; TTHM 21 ppb; HAA5 13 ppb. Monitoring periods vary; confirm this PWS before using the values.

GRANT ROAD PUD

TX1011991

Intersects Cypress ZCTA 77429. Latest TCEQ summaries: lead 2 ppb; copper 0.1624 ppm; TTHM 16 ppb; HAA5 7 ppb. Monitoring periods vary; confirm this PWS before using the values.

HARRIS COUNTY MUD 282

TX1013375

Intersects Cypress ZCTA 77429. Latest TCEQ summaries: lead 0 ppb; copper 0.232 ppm; TTHM 14 ppb; HAA5 1 ppb. Monitoring periods vary; confirm this PWS before using the values.

HARRIS COUNTY MUD 144

TX1010923

Intersects Cypress ZCTA 77433. Latest TCEQ summaries: lead 1 ppb; copper 0.0856 ppm; TTHM 22 ppb; HAA5 16 ppb. Monitoring periods vary; confirm this PWS before using the values.

HARRIS COUNTY MUD 396

TX1013338

Intersects Cypress ZCTA 77433. Latest TCEQ summaries: lead 0.9 ppb; copper 0.0449 ppm; TTHM 0 ppb; HAA5 0 ppb. Monitoring periods vary; confirm this PWS before using the values.

HARRIS COUNTY MUD 389

TX1013265

Intersects Cypress ZCTA 77429. Latest TCEQ summaries: lead 0.8 ppb; copper 0.0803 ppm; TTHM 4 ppb; HAA5 0 ppb. Monitoring periods vary; confirm this PWS before using the values.

HARRIS COUNTY MUD 371

TX1013107

Intersects Cypress ZCTA 77433. Latest TCEQ summaries: lead 1.2 ppb; copper 0.0536 ppm; TTHM 24 ppb; HAA5 21 ppb. Monitoring periods vary; confirm this PWS before using the values.

HARRIS COUNTY MUD 531

TX1013531

Intersects Cypress ZCTA 77433. Latest TCEQ summaries: lead 0 ppb; copper 0.0411 ppm; TTHM 28 ppb; HAA5 25 ppb. Monitoring periods vary; confirm this PWS before using the values.

HARRIS COUNTY MUD 248

TX1013306

Intersects Cypress ZCTA 77429. Latest TCEQ summaries: lead 0.6 ppb; copper 0.421 ppm; TTHM 10 ppb; HAA5 8 ppb. Monitoring periods vary; confirm this PWS before using the values.

HARRIS COUNTY MUD 559

TX1013762

Intersects Cypress ZCTA 77433. Latest TCEQ summaries: lead 0.6 ppb; copper 0.0377 ppm; TTHM 0 ppb; HAA5 0 ppb. Monitoring periods vary; confirm this PWS before using the values.

HARRIS COUNTY MUD 490

TX1013721

Intersects Cypress ZCTA 77433. Latest TCEQ summaries: lead 0 ppb; copper 0.0326 ppm; TTHM 9 ppb; HAA5 1 ppb. Monitoring periods vary; confirm this PWS before using the values.

HARRIS COUNTY MUD 500

TX1013390

Intersects Cypress ZCTA 77433. Latest TCEQ summaries: lead 0 ppb; copper 0.517 ppm; TTHM 18 ppb; HAA5 17 ppb. Monitoring periods vary; confirm this PWS before using the values.

WEST HARRIS COUNTY MUD 15

TX1012001

Intersects Cypress ZCTA 77429. Latest TCEQ summaries: lead 2.4 ppb; copper 0.535 ppm; TTHM 17 ppb; HAA5 18 ppb. Monitoring periods vary; confirm this PWS before using the values.

HARRIS COUNTY MUD 503

TX1013768

Intersects Cypress ZCTA 77433. Latest TCEQ summaries: lead 1 ppb; copper 0.0234 ppm; TTHM 23 ppb; HAA5 20 ppb. Monitoring periods vary; confirm this PWS before using the values.

HARRIS COUNTY MUD 493

TX1013790

Intersects Cypress ZCTA 77433. Latest TCEQ summaries: lead 0 ppb; copper 0.433 ppm; TTHM 11 ppb; HAA5 1 ppb. Monitoring periods vary; confirm this PWS before using the values.

HARRIS COUNTY MUD 358

TX1012969

Intersects Cypress ZCTA 77429 and 77433. Latest TCEQ summaries: lead 0 ppb; copper 0.58 ppm. Monitoring periods vary; confirm this PWS before using the values.

HARRIS COUNTY MUD 418

TX1013329

Intersects Cypress ZCTA 77433. Latest TCEQ summaries: TTHM 24 ppb; HAA5 18 ppb. Monitoring periods vary; confirm this PWS before using the values.

HARRIS COUNTY MUD 171

TX1013540

Intersects Cypress ZCTA 77433. Latest TCEQ summaries: TTHM 0 ppb; HAA5 0 ppb. Monitoring periods vary; confirm this PWS before using the values.

HARRIS COUNTY MUD 438

TX1013564

Current TCEQ and PUCT records verify the active retail-water identity. No measurements are displayed until a PWS-specific report is normalized.

HARRIS COUNTY MUD 18 HEATHERWOOD HUNTERS

TX1010512

Current TCEQ district data verifies the PWS identity. No measurements are displayed until a PWS-specific report is normalized.

HARRIS COUNTY MUD 458

TX1013644

Current TCEQ and PUCT records verify the active retail-water identity. No measurements are displayed until a PWS-specific report is normalized.

HARRIS COUNTY MUD 374 CYPRESS CREEK LAKE

TX1013450

TCEQ verifies this PWS identity; district sources document purchased water from MUD Nos. 371 and 433. Supplier measurements are not reassigned to MUD 374.

RED BUD WATER PLANT

TX1013817

Quadvest’s 2025 CCR verifies this private-utility PWS for the MUD 535 development context. Measurements are not displayed until normalized.

Measured facts

Published measurements

Lead, 90th percentile0–12.7 ppb

Range across 43 PWS summaries with published lead values; monitoring periods differ and this is not a Cypress average.

Copper, 90th percentile0.0089–0.584 ppm

Range across 43 PWS summaries; use only the value attached to the verified serving PWS.

TTHM, highest current LRAA0–29 ppb

Range across 43 PWS summaries with published TTHM results; current reporting periods vary by system.

HAA5, highest current LRAA0–25 ppb

Range across 43 PWS summaries with published HAA5 results; current reporting periods vary by system.

LADS interpretation

What the evidence means—and does not mean

These ranges are navigation aids across separate systems, not a Cypress-wide average or a statement about an individual tap.
The HCAD and Census crosswalk identified 59 district contexts. All are now classified: 50 active PWS identities, six inactive or dissolved districts, and two active development districts with no current drinking-water PWS or PUCT retail-utility record.
Governmental district identity and drinking-water PWS identity are not interchangeable. A district can purchase water or share a source without operating a separate PWS.
The five newly verified PWS identities are included for utility matching but do not display measurements until PWS-specific results are normalized.
Address-level resolution remains separate and requires the water bill, district map, or a future parcel-level resolver.

Measured fact

Values above stay tied to their named system, units, sample or report year, and official source.

Publisher interpretation

Planning language is educational context. It is not an official safety determination, diagnosis, ranking, or equipment prescription.

Primary evidence

Official sources

TCEQ — Drinking Water ViewerCurrent PWS identities and PWS-scoped chemical summaries accessed August 12, 2026Open official source ↗Harris County Appraisal District — MUD GIS layerCurrent quarterly district boundaries accessed August 12, 2026Open official source ↗U.S. Census Bureau — TIGERweb ZCTA layerJanuary 1, 2025 vintage for ZCTAs 77429 and 77433Open official source ↗TCEQ — Water District DatabaseCurrent district activity and linked-PWS records accessed August 12, 2026Open official source ↗PUCT — Water Utility SearchCurrent retail-utility records accessed August 12, 2026Open official source ↗Quadvest — Red Bud Water Plant 2025 CCRJanuary–December 2025Open official source ↗Bridgeland Water Agency — district directoryCurrent shared-service context accessed August 12, 2026Open official source ↗

Evidence before equipment

Use the report as context—not as a substitute for the property.

Review water testing