TapWaterMap

CO / Denver

CO · Tap water records

Denver tap water, in plain English

Here is what the EPA's own data shows about tap water in Denver. According to EPA SDWIS data retrieved October 2026, Denver is served by 57 active community water systems, together reported to serve about 1,383,079 people.

As of October 2026, EPA records show 522 violations across the community water system(s) serving Denver, going back to the earliest EPA record. 7 of these are classified by the EPA as health-based (a contaminant recorded above the limit the EPA tracks); the rest are monitoring or reporting violations. Each is listed by system below, with its status.

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What the EPA has on record, by system

Denver Water Board

1,287,000 served · surface water · PWSID CO0116001

Crestview Wsd

23,756 served · surface water · PWSID CO0101040

As of October 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Cherry Creek Valley Wsd

22,000 served · surface water · PWSID CO0116175

As of October 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

North Washington Street Wsd

14,500 served · surface water · PWSID CO0101105

High View Wd

4,000 served · surface water · PWSID CO0130344

As of October 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Advenir French Quarter

3,447 served · surface water · PWSID CO0116104

North Pecos Wsd

2,500 served · surface water · PWSID CO0116553

As of October 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Eastern Adams Co Md

2,485 served · groundwater · PWSID CO0101234

West Olive Estates

1,850 served · groundwater · PWSID MI0040614

As of October 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Spring Valley Md No 1

1,788 served · groundwater · PWSID CO0120717

Palms Of Archer

1,092 served · groundwater · PWSID FL2010042

As of October 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Southfork Denton Mobile Home Park

1,050 served · groundwater · PWSID TX0610011

As of October 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

North Lincoln Wsd

1,000 served · surface water · PWSID CO0116552

Northwest Pines Mobile Home Community

990 served · groundwater · PWSID TX1011032

As of October 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Pinewood On The Lake Mhp

950 served · groundwater · PWSID MI0040464

As of October 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Mcdonald Farms Enterprises Inc

772 served · surface water · PWSID CO0207500

Spring Hill Mhp

764 served · groundwater · PWSID FL6534880

As of October 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Yankee Springs Meadows

710 served · groundwater · PWSID MI0040585

As of October 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Buckhorn Ranch Estates Mhp

702 served · surface water · PWSID IL0310070

As of October 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Mason Manor

630 served · groundwater · PWSID MI0040197

As of October 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Beach Mhp

624 served · surface water · PWSID IL0970010

As of October 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Dutch Hills

620 served · groundwater · PWSID MI0040116

As of October 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Four Seasons Mobile Home Park

600 served · groundwater · PWSID GA1130010

As of October 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Independence Wsd

567 served · groundwater · PWSID CO0120384

Terrace Heights

548 served · groundwater · PWSID IA3126604

As of October 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Burt Estates Mhc

543 served · groundwater · PWSID IL0630070

As of October 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Raintree Estates

489 served · groundwater · PWSID TX0200390

As of October 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

High Cliff Estates

448 served · groundwater · PWSID IL1610410

As of October 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Groveland Manor

435 served · groundwater · PWSID MI0040384

As of October 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Fsi Holly Hills Property Llc

435 served · groundwater · PWSID MI0040665

As of October 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Aledo Mobile Home Park

423 served · groundwater · PWSID TX1840041

As of October 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Lamplighter Mobile Home Park

420 served · surface water · PWSID CO0122467

Forest Hills Md Riva Chase

400 served · groundwater · PWSID CO0130033

Oak Lane Mhc

388 served · surface water · PWSID IL0311900

As of October 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Idledale Wsd

350 served · surface water · PWSID CO0130055

Capital Crossings

345 served · groundwater · PWSID MI0040675

As of October 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Mountain Valley Mhp

338 served · groundwater · PWSID CO0123519

Imperial Mhc

328 served · groundwater · PWSID IL1975225

As of October 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Chatfield South Wd

312 served · surface water · PWSID CO0118175

Old Orchard Estates

296 served · groundwater · PWSID MI0040156

As of October 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Meadow Streams Estates

293 served · groundwater · PWSID MI0040061

As of October 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

The Meadows

238 served · groundwater · PWSID IL1030060

As of October 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Country Acres Mhp (La Salle County)

222 served · groundwater · PWSID IL0995365

As of October 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Union Pacific Railroad Co.-Keene Water

208 served · groundwater · PWSID CA1500371

As of October 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Maple Crest Manor Mhp

190 served · surface water · PWSID IL0915040

As of October 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Meadowood Village Mhp

125 served · surface water · PWSID CO0103506

Foxhill Md

123 served · groundwater · PWSID CO0118285

As of October 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Pleasant View Estates

122 served · surface water · PWSID CO0130604

Suburban Estates Mhp

115 served · surface water · PWSID CO0101725

Country Homes Land Co

100 served · surface water · PWSID CO0103186

As of October 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Pinon Pines Property Llc

100 served · groundwater · PWSID CO0108050

Excell Lawson Village

90 served · groundwater · PWSID CO0110025

Deep Creek Creede Haven

86 served · groundwater · PWSID CO0140600

Valley Vista Estates

51 served · groundwater · PWSID CO0101800

Valli Hi Mhp

50 served · groundwater · PWSID CO0110045

Harvest Estates (Formerly Bills Mhp)

40 served · groundwater · PWSID IL0915165

As of October 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

Deep Creek Mountain Valley Estates

31 served · groundwater · PWSID CO0140187

What this means

A health-based violation means a contaminant was recorded above the limit the EPA tracks for it. A monitoring or reporting violation means a required test or report was late or missed — not that a contaminant was measured above a limit. “Returned to compliance” means the EPA recorded the issue as resolved.

This page summarizes the EPA's own records and does not assess whether your water is safe to drink. For the most current details, you can verify every record directly with the EPA, and contact your water system with questions.

Source: U.S. EPA Envirofacts SDWIS, retrieved October 2026. Records cover the EPA's full reporting history for these systems. Verify at EPA ECHO.