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GRANTS PASS, Oregon Tap Water Quality

39,987 people served · 33 water systems

F
Failing

GRANTS PASS, Oregon is a small city with 39,987 residents served by 33 distinct public water systems. Water service covers ZIP codes 97526, 97527, 97528.

GRANTS PASS 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 Coliform Bacteria and Lead among the regulated contaminants associated with GRANTS PASS'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

Health-Based Violations (Last 5 Years)

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

Leadchemical

EPA Code 5200 · Treatment Technique Violation

8

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.

EPA Code 8000 · Maximum Contaminant Level Exceedance · Treatment Technique Violation

8

violations

EPA Limit

0 per 100 mL presence/absence

Last Reading

First Reported

Nov 2023

Most Recent

Jul 2024

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.

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 GRANTS PASS

MEADOW CREEK SUBDIVISION

PWSID: OR4101443

60 served

HIGHLAND HEIGHTS ESTATES

PWSID: OR4100350

60 served

SKY CREST HEIGHTS HOMEOWNERS

PWSID: OR4100344

44 served

2 violations

PARKDALE WATER SYSTEM

PWSID: OR4101256

100 served

VALLEY COURT APARTMENTS

PWSID: OR4101276

34 served

REDWOOD TERRACE ASSISTED LIVING

PWSID: OR4195017

50 served

FRUITDALE TRAILER PARK

PWSID: OR4100349

50 served

ROGUE RIVER MOBILE ESTATES

PWSID: OR4101067

72 served

2 violations

DARNEILLE ESTATES

PWSID: OR4101381

47 served

HOLIDAY MOBILE HOME PARK

PWSID: OR4101191

58 served

1 violation

PINE RIDGE WATER CO LLC

PWSID: OR4101467

44 served

RIVER HAVEN MOBILE HOME ESTATES

PWSID: OR4100354

140 served

BLUE MOON MOBILE HOME PARK

PWSID: OR4101020

70 served

ROGUE RIVER CAMPGROUND

PWSID: OR4191541

60 served

HORIZON VILLAGE COMMUNITY WATER SYSTEM

PWSID: OR4106114

80 served

3 violations

COLLEGE MOBILE HOME PARK

PWSID: OR4100972

34 served

RIVERFRONT RV PARK

PWSID: OR4191531

65 served

2 violations

GRANTS PASS, CITY OF

PWSID: OR4100342

37,138 served

CAVEMAN MOBILE HOME PARK

PWSID: OR4101260

45 served

1 violation

WILLOW ESTATES MOBILE HOME PK

PWSID: OR4101354

250 served

BLUE SPRUCE MOBILE ESTATES

PWSID: OR4100515

55 served

ROGUE LEA ESTATES-NORTH/SOUTH

PWSID: OR4101405

350 served

FAMILY REDWOOD PARK COOPERATIVE

PWSID: OR4100348

250 served

FRUITDALE HEIGHTS WATER CO

PWSID: OR4100343

70 served

CIRCLE TREE MOBILE PARK/RANCH

PWSID: OR4101021

57 served

COUNTRY ESTATES MOBILE PARK

PWSID: OR4100340

175 served

3 violations

WILLOW GLEN SUBDIVISION

PWSID: OR4101437

60 served

NORWOOD PUD

PWSID: OR4101471

150 served

WHITEHORSE RV VILLAGE

PWSID: OR4191919

72 served

COUNTRY VILLAGE MOBILE ESTATES

PWSID: OR4100341

80 served

COUNTRY VIEW MHP

PWSID: OR4101022

80 served

2 violations

KEITHS MOBILE HOME PARK

PWSID: OR4101023

55 served

APPLEGATE TRAIL RV PARK

PWSID: OR4192123

32 served

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 GRANTS PASS, Oregon 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 GRANTS PASS have?

GRANTS PASS has 16 EPA health-based water violations in the last 5 years across 33 water systems serving 39,987 people.

What contaminants have been found in GRANTS PASS water?

The following EPA-regulated contaminants have been detected: 8000, 5200. View details about each contaminant, health effects, and recommended precautions above in the violations table.

Should I use a water filter in GRANTS PASS?

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 GRANTS PASS?

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.

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