Utility-reported hardness
Unavailable
Ask your provider or test your tap
Local water dashboard
Official source aggregationWater quality in Rock Springs, WY 82901
Regional hardness evidence, possible serving systems, EPA compliance history, and the measurements that are—and are not—available for Sweetwater County.
No active health-based violation reported
- Largest possible serving system
- Rock Springs, City Of
- Source water
- Surface water
- County
- Sweetwater County
- Profile updated
Your tap water
What does the utility report?
Match the utility name to your water bill. These results describe the utility’s water, not a test at your home. A ZIP can include several water systems.
Utility hardness unavailable in this index
Nearby river or groundwater samples cannot tell us the hardness coming out of your tap. Ask your water provider for total hardness as CaCO₃, or test it at home.
Find an official utility report →At a glance
What the current records say
EPA quarter 2026Q2
All possible systems
No active flag
0 active health-based records
Measurements by utility
Each result belongs to a specific system.
Utility match
10 systems
Serves 24,000 people system-wide
Match the name on your water bill
Your utility’s measurements and compliance records
These are possible serving systems. A record for one system does not apply to every home in this ZIP. Confirm your provider before interpreting a measurement or notice. Federal records can lag current utility notices.
EPA snapshot: 2026Q2. Historical window begins Jan 1, 2021.
Rock Springs, City Of
WY5601182 · Surface water · 24,000 people served system-wide
The system names this served city; Census place overlap links the city to this ZCTA.
No active health-based record in this imported snapshot
Find this utility’s official report →Measurements (1)
An action level is a regulatory trigger, not a pass/fail health boundary. A reported zero is the value in the source record and does not establish that lead is absent at your tap.
Lead (90th percentile)
EPA SDWIS Lead and Copper Rule samples
- Reported level
- 0.003 mg/L
- Action level
- 0.015 mg/L
20% of the listed benchmark
Monitoring period: Jan 1, 2023 to Dec 31, 2025
Violation history (0)
No record returned in this imported window. This is not a guarantee of tap-water safety.
White Mountain W&s District
WY5601391 · Surface water · 3,000 people served system-wide
The system names this served city; Census place overlap links the city to this ZCTA.
No active health-based record in this imported snapshot
Find this utility’s official report →Measurements (1)
An action level is a regulatory trigger, not a pass/fail health boundary. A reported zero is the value in the source record and does not establish that lead is absent at your tap.
Lead (90th percentile)
EPA SDWIS Lead and Copper Rule samples
- Reported level
- 0.002 mg/L
- Action level
- 0.015 mg/L
13% of the listed benchmark
Monitoring period: Jan 1, 2023 to Dec 31, 2025
Violation history (0)
No record returned in this imported window. This is not a guarantee of tap-water safety.
Clearview I&s District
WY5600091 · Surface water · 930 people served system-wide
The system names this served city; Census place overlap links the city to this ZCTA.
No active health-based record in this imported snapshot
Find this utility’s official report →Measurements (1)
An action level is a regulatory trigger, not a pass/fail health boundary. A reported zero is the value in the source record and does not establish that lead is absent at your tap.
Lead (90th percentile)
EPA SDWIS Lead and Copper Rule samples
- Reported level
- 0.003 mg/L
- Action level
- 0.015 mg/L
20% of the listed benchmark
Monitoring period: Jan 1, 2023 to Dec 31, 2025
Violation history (3)
| Rule | Status | Period |
|---|---|---|
| Lead and Copper Rule | Resolved | Dec 30, 2022 to Jan 17, 2023 |
| Consumer Confidence Rule | Unaddressed | Jul 1, 2013 |
| Consumer Confidence Rule | Addressed | Oct 1, 2007 |
Skyline Village Mobile Home Pk
WY5601176 · Surface water · 700 people served system-wide
The system names this served city; Census place overlap links the city to this ZCTA.
No active health-based record in this imported snapshot
Find this utility’s official report →Measurements (1)
An action level is a regulatory trigger, not a pass/fail health boundary. A reported zero is the value in the source record and does not establish that lead is absent at your tap.
Lead (90th percentile)
EPA SDWIS Lead and Copper Rule samples
- Reported level
- 0.006 mg/L
- Action level
- 0.015 mg/L
40% of the listed benchmark
Monitoring period: Jan 1, 2025 to Dec 31, 2025
Violation history (4)
| Rule | Status | Period |
|---|---|---|
| Lead and Copper Rule | Resolved | Oct 1, 2023 to Dec 5, 2024 |
| Long Term 2 Enhanced Surface Water Treatment RuleHealth-based | Resolved | Sep 3, 2023 to Jan 29, 2024 |
| TTHM | Resolved | Jan 1, 2023 to Mar 31, 2023 |
| TTHM | Resolved | Mar 1, 2022 to May 31, 2022 |
Western Hills Mhp
WY5601085 · Surface water · 450 people served system-wide
The system names this served city; Census place overlap links the city to this ZCTA.
No active health-based record in this imported snapshot
Find this utility’s official report →Measurements (1)
An action level is a regulatory trigger, not a pass/fail health boundary. A reported zero is the value in the source record and does not establish that lead is absent at your tap.
Lead (90th percentile)
EPA SDWIS Lead and Copper Rule samples
- Reported level
- 0.001 mg/L
- Action level
- 0.015 mg/L
7% of the listed benchmark
Monitoring period: Jan 1, 2025 to Dec 31, 2025
Violation history (3)
| Rule | Status | Period |
|---|---|---|
| Lead and Copper Rule | Resolved | Oct 1, 2023 to Nov 21, 2025 |
| Lead and Copper Rule | Resolved | Dec 30, 2022 to Feb 3, 2023 |
| Lead and Copper Rule | Resolved | Oct 1, 2021 to Feb 8, 2022 |
Lewis Mobile Home Park
WY5601175 · Surface water · 370 people served system-wide
The system names this served city; Census place overlap links the city to this ZCTA.
No active health-based record in this imported snapshot
Find this utility’s official report →Measurements (1)
An action level is a regulatory trigger, not a pass/fail health boundary. A reported zero is the value in the source record and does not establish that lead is absent at your tap.
Lead (90th percentile)
EPA SDWIS Lead and Copper Rule samples
- Reported level
- 0.002 mg/L
- Action level
- 0.015 mg/L
13% of the listed benchmark
Monitoring period: Jan 1, 2025 to Dec 31, 2025
Violation history (3)
| Rule | Status | Period |
|---|---|---|
| Lead and Copper Rule | Unaddressed | Dec 30, 2024 |
| Lead and Copper Rule | Resolved | Oct 1, 2022 to Feb 22, 2024 |
| Consumer Confidence Rule | Addressed | Jul 1, 2013 |
Horizon Mhp
WY5600088 · Surface water · 330 people served system-wide
The system names this served city; Census place overlap links the city to this ZCTA.
No active health-based record in this imported snapshot
Find this utility’s official report →Measurements (1)
An action level is a regulatory trigger, not a pass/fail health boundary. A reported zero is the value in the source record and does not establish that lead is absent at your tap.
Lead (90th percentile)
EPA SDWIS Lead and Copper Rule samples
- Reported level
- 0 mg/L
- Action level
- 0.015 mg/L
0% of the listed benchmark
Monitoring period: Jan 1, 2025 to Dec 31, 2025
Violation history (1)
| Rule | Status | Period |
|---|---|---|
| Lead and Copper Rule | Resolved | Oct 1, 2023 to Dec 4, 2024 |
Ten Mile Water And Sewer District
WY5601369 · Surface water · 305 people served system-wide
The system names this served city; Census place overlap links the city to this ZCTA.
No active health-based record in this imported snapshot
Find this utility’s official report →Measurements (1)
An action level is a regulatory trigger, not a pass/fail health boundary. A reported zero is the value in the source record and does not establish that lead is absent at your tap.
Lead (90th percentile)
EPA SDWIS Lead and Copper Rule samples
- Reported level
- 0.014 mg/L
- Action level
- 0.015 mg/L
93% of the listed benchmark
Monitoring period: Jan 1, 2023 to Dec 31, 2025
Violation history (0)
No record returned in this imported window. This is not a guarantee of tap-water safety.
White Mountain Mobile Home Park
WY5601206 · Surface water · 270 people served system-wide
The system names this served city; Census place overlap links the city to this ZCTA.
No active health-based record in this imported snapshot
Find this utility’s official report →Measurements (1)
An action level is a regulatory trigger, not a pass/fail health boundary. A reported zero is the value in the source record and does not establish that lead is absent at your tap.
Lead (90th percentile)
EPA SDWIS Lead and Copper Rule samples
- Reported level
- 0 mg/L
- Action level
- 0.015 mg/L
0% of the listed benchmark
Monitoring period: Jan 1, 2022 to Dec 31, 2024
Violation history (0)
No record returned in this imported window. This is not a guarantee of tap-water safety.
Garcia Mobile Home Park
WY5601746 · Surface water · 148 people served system-wide
The system names this served city; Census place overlap links the city to this ZCTA.
No active health-based record in this imported snapshot
Find this utility’s official report →Measurements (1)
An action level is a regulatory trigger, not a pass/fail health boundary. A reported zero is the value in the source record and does not establish that lead is absent at your tap.
Lead (90th percentile)
EPA SDWIS Lead and Copper Rule samples
- Reported level
- 0.006 mg/L
- Action level
- 0.015 mg/L
40% of the listed benchmark
Monitoring period: Jul 1, 2025 to Dec 31, 2025
Violation history (0)
No record returned in this imported window. This is not a guarantee of tap-water safety.
Hardness meter
What does nearby environmental evidence show?
1575
PPM as CaCO₃
Very Hard
PPM
1575
GPG
92.1
Regional environmental evidence
USGS hardness classification scale
1575 PPM
Soft
0–60Moderate
61–120Hard
121–180Very hard
181+
0–60Moderate
61–120Hard
121–180Very hard
181+
Parts per million
1575
mg/L as CaCO₃ equivalent
Grains per gallon
92.1
1 GPG ≈ 17.1 PPM
How to use regional evidence
These samples describe nearby environmental water. They cannot establish whether your tap water is soft or hard. Use a utility result or a tap test for appliance settings and treatment sizing.
USGS sites used
2
Nearest site
22.9 mi
Observation range
Apr 28, 2026–Apr 28, 2026
Regional evidence confidence
Moderate
Median of the latest source-type-aligned hardness observation at each monitoring site within 25 miles. Nearest monitoring location: BITTER CREEK NEAR POINT OF ROCKS, WY (Stream).USGS source documentation ↗Evidence tier: Regional environmental evidence. This value is not used as proof of the serving utility's treated-water hardness.
Regional context
Is 82901 typical?
These comparisons use other indexed ZIP estimates, not utility tap samples. They help show local context without replacing a household test.
Rock Springs median
1575 PPM
About the same1 indexed ZIP readings · Range 1575–1575 PPM
Wyoming median
209 PPM
1366 PPM higher42 indexed ZIP readings · Range 2–2970 PPM
Evidence-first next steps
Confirm the problem before choosing treatment
This profile can help you ask the right question. It cannot select equipment for a property without a current result from the serving utility or the tap.
Confirm the serving system
ZIP boundaries and utility service areas do not perfectly match. Verify the system on a water bill before relying on system-wide records.
Read the current utility report
Use the current Consumer Confidence Report for treated-water results and official notices.
Find an official utility report →Test for the decision you face
Use a tap hardness test before sizing a softener. For health concerns, use a certified laboratory and the correct sampling protocol.
Convert your hardness test result →Frequently asked
Water questions for Rock Springs
Is tap water safe in Rock Springs?+
EPA ECHO shows no active health-based violation for the associated systems in this reporting snapshot. This does not prove every contaminant is absent; federal records can lag and household plumbing can change tap conditions.
How hard is the water?+
Utility-reported hardness is unavailable in this index. Regional samples do not establish tap-water hardness. Ask your provider or test your tap.
Do I need a water softener?+
Confirm hardness at your tap and consider actual scale or spotting before choosing treatment. Regional environmental values cannot determine whether you need a softener. A softener addresses hardness, not every contaminant.