Utility-reported hardness
Unavailable
Ask your provider or test your tap
Local water dashboard
Official source aggregationWater quality in Casper, WY 82609
Regional hardness evidence, possible serving systems, EPA compliance history, and the measurements that are—and are not—available for Natrona County.
Historical measurement record needs context
- Largest possible serving system
- Casper, City Of
- Source water
- Surface water + Groundwater
- County
- Natrona 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 59,000 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.
Casper, City Of
WY5601415 · Surface water · 59,000 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
- 0.001 mg/L
- Action level
- 0.015 mg/L
7% of the listed benchmark
Monitoring period: Jan 1, 2021 to Dec 31, 2023
Violation history (0)
No record returned in this imported window. This is not a guarantee of tap-water safety.
Vista West Water Company
WY5600069 · Surface water · 1,600 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, 2024 to Dec 31, 2024
Violation history (2)
| Rule | Status | Period |
|---|---|---|
| Surface Water Treatment Rule | Resolved | Apr 1, 2024 to Apr 30, 2024 |
| Lead and Copper Rule | Resolved | Oct 1, 2021 to Mar 14, 2023 |
Natrona County Int'L Airport
WY5600079 · Surface water · 423 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 (2)
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: Jul 1, 2025 to Dec 31, 2025
Copper (90th percentile)
EPA SDWIS Lead and Copper Rule samples
- Reported level
- 1.5 mg/L
- Action level
- 1.3 mg/L
115% of the listed benchmark
Monitoring period: Jan 1, 2024 to Dec 31, 2024
Violation history (6)
| Rule | Status | Period |
|---|---|---|
| Revised Total Coliform Rule | Resolved | Oct 1, 2024 to Oct 31, 2024 |
| Surface Water Treatment Rule | Resolved | Oct 1, 2024 to Oct 31, 2024 |
| Lead and Copper Rule | Resolved | Sep 29, 2023 to Nov 2, 2023 |
| Lead and Copper RuleHealth-based | Resolved | Apr 1, 2023 to Nov 2, 2023 |
| Lead and Copper Rule | Resolved | Apr 1, 2023 to Nov 2, 2023 |
| Lead and Copper Rule | Resolved | Oct 1, 2021 to Dec 2, 2022 |
Terrace I Mhc
WY5601231 · Surface water · 336 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, 2023 to Dec 31, 2025
Violation history (1)
| Rule | Status | Period |
|---|---|---|
| Surface Water Treatment Rule | Resolved | Aug 1, 2025 to Aug 31, 2025 |
Riverside Mobile Home Court
WY5601641 · 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 (2)
| Rule | Status | Period |
|---|---|---|
| Consumer Confidence Rule | Resolved | Jul 1, 2024 to Sep 26, 2024 |
| Lead and Copper Rule | Resolved | Oct 1, 2023 to Aug 19, 2024 |
Hidden Hills Mhp
WY5601339 · Surface water · 324 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, 2023 to Dec 31, 2025
Violation history (0)
No record returned in this imported window. This is not a guarantee of tap-water safety.
Terrace Ii Mhc
WY5601622 · Surface water · 320 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, 2023 to Dec 31, 2025
Violation history (0)
No record returned in this imported window. This is not a guarantee of tap-water safety.
Green Valley Mhp
WY5600969 · Surface water · 265 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, 2023 to Dec 31, 2025
Violation history (0)
No record returned in this imported window. This is not a guarantee of tap-water safety.
Sandy Lake Estates I&s District
WY5601581 · Surface water · 150 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 (2)
| Rule | Status | Period |
|---|---|---|
| Consumer Confidence Rule | Unaddressed | Jul 1, 2025 |
| Consumer Confidence Rule | Unaddressed | Oct 1, 2019 |
Broken Wrench Llc
WY5600074 · Groundwater · 30 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: Jul 1, 2025 to Dec 31, 2025
Violation history (77)
| Rule | Status | Period |
|---|---|---|
| Lead and Copper RuleHealth-based | Resolved | Feb 29, 2024 to Jul 30, 2025 |
| Total Haloacetic Acids (HAA5) | Resolved | Jan 1, 2024 to Dec 31, 2024 |
| Lead and Copper RuleHealth-based | Resolved | Jan 1, 2024 to Jul 30, 2025 |
| TTHM | Resolved | Jan 1, 2024 to Dec 31, 2024 |
| Lead and Copper RuleHealth-based | Resolved | Oct 1, 2023 to Jul 30, 2025 |
| Lead and Copper RuleHealth-based | Resolved | Jul 1, 2023 to Jul 30, 2025 |
| Lead and Copper Rule | Resolved | Jul 1, 2023 to Nov 21, 2025 |
| Lead and Copper RuleHealth-based | Resolved | Apr 1, 2023 to Jul 30, 2025 |
| Lead and Copper RuleHealth-based | Resolved | Apr 1, 2023 to Jun 5, 2024 |
| Carbon tetrachloride | Archived | Jan 1, 2023 to Dec 31, 2025 |
| Dalapon | Archived | Jan 1, 2023 to Dec 31, 2025 |
| Methoxychlor | Archived | Jan 1, 2023 to Dec 31, 2025 |
| Simazine | Archived | Jan 1, 2023 to Dec 31, 2025 |
| o-Dichlorobenzene | Archived | Jan 1, 2023 to Dec 31, 2025 |
| 2,4-D | Archived | Jan 1, 2023 to Dec 31, 2025 |
| Mercury | Archived | Jan 1, 2023 to Dec 31, 2025 |
| Pentachlorophenol | Archived | Jan 1, 2023 to Dec 31, 2025 |
| Thallium, Total | Archived | Jan 1, 2023 to Dec 31, 2025 |
| cis-1,2-Dichloroethylene | Archived | Jan 1, 2023 to Dec 31, 2025 |
| Diquat | Archived | Jan 1, 2023 to Dec 31, 2025 |
| Arsenic | Archived | Jan 1, 2023 to Dec 31, 2025 |
| 1,2,4-Trichlorobenzene | Archived | Jan 1, 2023 to Dec 31, 2025 |
| Trichloroethylene | Archived | Jan 1, 2023 to Dec 31, 2025 |
| Beryllium, Total | Archived | Jan 1, 2023 to Dec 31, 2025 |
| Endrin | Archived | Jan 1, 2023 to Dec 31, 2025 |
| Total Polychlorinated Biphenyls (PCB) | Archived | Jan 1, 2023 to Dec 31, 2025 |
| 2,4,5-TP | Archived | Jan 1, 2023 to Dec 31, 2025 |
| Glyphosate | Archived | Jan 1, 2023 to Dec 31, 2025 |
| Heptachlor | Archived | Jan 1, 2023 to Dec 31, 2025 |
| Vinyl chloride | Archived | Jan 1, 2023 to Dec 31, 2025 |
| Benzene | Archived | Jan 1, 2023 to Dec 31, 2025 |
| 1,1-Dichloroethylene | Archived | Jan 1, 2023 to Dec 31, 2025 |
| Cadmium | Archived | Jan 1, 2023 to Dec 31, 2025 |
| Hexachlorocyclopentadiene | Archived | Jan 1, 2023 to Dec 31, 2025 |
| ETHYLENE DIBROMIDE | Archived | Jan 1, 2023 to Dec 31, 2025 |
| Nickel | Archived | Jan 1, 2023 to Dec 31, 2025 |
| LASSO | Archived | Jan 1, 2023 to Dec 31, 2025 |
| Chromium | Archived | Jan 1, 2023 to Dec 31, 2025 |
| BHC-GAMMA | Archived | Jan 1, 2023 to Dec 31, 2025 |
| Toluene | Archived | Jan 1, 2023 to Dec 31, 2025 |
| CHLOROBENZENE | Archived | Jan 1, 2023 to Dec 31, 2025 |
| Heptachlor epoxide | Archived | Jan 1, 2023 to Dec 31, 2025 |
| Selenium | Archived | Jan 1, 2023 to Dec 31, 2025 |
| HEXACHLOROBENZENE | Archived | Jan 1, 2023 to Dec 31, 2025 |
| 1,1,2-Trichloroethane | Archived | Jan 1, 2023 to Dec 31, 2025 |
| 1,1,1-Trichloroethane | Archived | Jan 1, 2023 to Dec 31, 2025 |
| Di(2-ethylhexyl) phthalate | Archived | Jan 1, 2023 to Dec 31, 2025 |
| 1,2-DIBROMO-3-CHLOROPROPANE | Archived | Jan 1, 2023 to Dec 31, 2025 |
| Xylenes, Total | Archived | Jan 1, 2023 to Dec 31, 2025 |
| p-Dichlorobenzene | Archived | Jan 1, 2023 to Dec 31, 2025 |
| Chlordane | Archived | Jan 1, 2023 to Dec 31, 2025 |
| Tetrachloroethylene | Archived | Jan 1, 2023 to Dec 31, 2025 |
| trans-1,2-Dichloroethylene | Archived | Jan 1, 2023 to Dec 31, 2025 |
| Picloram | Archived | Jan 1, 2023 to Dec 31, 2025 |
| Fluoride | Archived | Jan 1, 2023 to Dec 31, 2025 |
| CYANIDE | Archived | Jan 1, 2023 to Dec 31, 2025 |
| DICHLOROMETHANE | Archived | Jan 1, 2023 to Dec 31, 2025 |
| Antimony, Total | Archived | Jan 1, 2023 to Dec 31, 2025 |
| OXAMYL | Archived | Jan 1, 2023 to Dec 31, 2025 |
| Di(2-ethylhexyl) adipate | Archived | Jan 1, 2023 to Dec 31, 2025 |
| Ethylbenzene | Archived | Jan 1, 2023 to Dec 31, 2025 |
| Carbofuran | Archived | Jan 1, 2023 to Dec 31, 2025 |
| Dinoseb | Archived | Jan 1, 2023 to Dec 31, 2025 |
| Barium | Archived | Jan 1, 2023 to Dec 31, 2025 |
| Endothall | Archived | Jan 1, 2023 to Dec 31, 2025 |
| Benzo(a)pyrene | Archived | Jan 1, 2023 to Dec 31, 2025 |
| 1,2-Dichloropropane | Archived | Jan 1, 2023 to Dec 31, 2025 |
| 1,2-Dichloroethane | Archived | Jan 1, 2023 to Dec 31, 2025 |
| Atrazine | Archived | Jan 1, 2023 to Dec 31, 2025 |
| Toxaphene | Archived | Jan 1, 2023 to Dec 31, 2025 |
| Styrene | Archived | Jan 1, 2023 to Dec 31, 2025 |
| Lead and Copper RuleHealth-based | Resolved | Nov 30, 2022 to Jun 6, 2023 |
| Nitrate-Nitrite | Resolved | Jan 1, 2022 to Dec 31, 2022 |
| Lead and Copper Rule | Resolved | Oct 1, 2021 to Dec 2, 2022 |
| Consumer Confidence Rule | Resolved | Jul 1, 2021 to Jan 19, 2022 |
| TTHM | Resolved | Jan 1, 2021 to Dec 31, 2023 |
| Total Haloacetic Acids (HAA5) | Resolved | Jan 1, 2021 to Dec 31, 2023 |
Hardness meter
What does nearby environmental evidence show?
272
PPM as CaCO₃
Very Hard
PPM
272
GPG
15.9
Regional environmental evidence
USGS hardness classification scale
272 PPM
Soft
0–60Moderate
61–120Hard
121–180Very hard
181+
0–60Moderate
61–120Hard
121–180Very hard
181+
Parts per million
272
mg/L as CaCO₃ equivalent
Grains per gallon
15.9
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
1
Nearest site
6.2 mi
Observation range
Sep 16, 2020–Sep 16, 2020
Regional evidence confidence
Low
Median of the latest source-type-aligned hardness observation at each monitoring site within 25 miles. Nearest monitoring location: NORTH PLATTE RIVER BELOW CASPER, 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 82609 typical?
These comparisons use other indexed ZIP estimates, not utility tap samples. They help show local context without replacing a household test.
Casper median
221 PPM
51 PPM higher2 indexed ZIP readings · Range 170–272 PPM
Wyoming median
209 PPM
63 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
A reported action-level record needs context. Check its monitoring period and the utility's current report.
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 →Nearby indexed reports
More local profiles in Casper
Estimates can differ across a city because monitoring locations and associated systems differ.
Frequently asked
Water questions for Casper
Is tap water safe in Casper?+
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.