Local Snapshot
Available Rock Springs water system context
One public water system profile is currently linked to Rock Springs. The system profile is the stronger data page; this city hub explains the connection and where to check next.
One linked profile is shown here. Confirm address-level service with an official source.
County or borough is not listed in the current city relationship record.
Use the PWSID when checking official sources.
The system page presents all 13 rows from the 2025 reporting-period table; the city page keeps a concise orientation summary.
Associated Systems
Public water systems linked to this city
Start with the linked system profile for Rock Springs; it carries the PWSID, report context, source links, and limitations. The city page is a navigation layer.
ROCK SPRINGS, CITY OF
PWSID WY5601182
System-level profile for Rock Springs. Use it to review report-year context, source links, available violation records, contaminant relationships, and limitations.
- System type
- Communities
- Rock Springs
- Counties
- County not listed
- Latest CCR
- 2025
How to use this city page
- Start with PWSID WY5601182 when checking official records.
- Open the system profile before relying on city-level context.
- Use the linked annual report and source links for report tables, definitions, and official wording.
Location context: County or borough is not listed in the current city relationship record.
City pages help organize nearby records, but the water system profile is the main record page. A city may have more than one provider, and service areas may not match city limits.
Annual Reports
Latest report context in available data
Annual reports summarize a reporting period. For Rock Springs, use the linked system profile and official source before treating city context as complete.
WY5601182
ROCK SPRINGS, CITY OF
2025 report: The system page presents all 13 rows from the 2025 reporting-period table with definitions and footnotes, and keeps the 2024 and 2023 report-period tables separate. These historical values do not establish current household-tap conditions.
Source type shown in available records: Utility report
Source and provider roles
Green River source, JPWB treatment, Rock Springs distribution
The reviewed records describe a directional relationship among the Green River source, Joint Powers Water Board treatment, and Rock Springs Municipal Utility distribution. They do not turn Rock Springs city limits into a service boundary.
What records name
- EPA identifies PWSID WY5601182 as ROCK SPRINGS, CITY OF and classifies its source category as surface water.
- The annual report says Rock Springs water is purchased from the Joint Powers Water Board, whose Green River plant treats the source water.
- Rock Springs Municipal Utility provides the customer-facing billing and distribution path.
Provider confirmation
A city relationship, EPA population, or connection count is not address-level service proof. Start with the current bill or utility account, then use the provider path below.
Confirm an address with the provider path →Sources: EPA identity record and the 2026-issued annual report. Sources checked September 18, 2026. Report-period values do not establish current compliance, advisory status, safety, exposure, address-level service, or conditions at a household tap.
Source geography
Green River and Upper Green River Valley context
The annual report describes source geography and points readers to Wyoming DEQ assessment resources. Geography is not a current contaminant result or a household-tap finding.
Named source context
The report describes the Green River as beginning at Green River Lakes near Pinedale, flowing through western Wyoming and the Upper Green River Valley before reaching the Green River treatment location.
Read the source-basin evidence on the system page →Assessment record
A system-specific source-water assessment was not recovered in this review. The general DEQ destination is a next step, not proof that a particular assessment finding applies to this system.
Open Wyoming DEQ water-quality resourcesProtection resources
The annual report gives general source-protection practices such as proper disposal of waste, fertilizer, medications, and pet waste. No system-specific protection plan was accepted.
See the system-owned protection-resource limit →Sources checked September 18, 2026. Report-period values do not establish current compliance, advisory status, safety, exposure, address-level service, or conditions at a household tap.
Address task
Confirm who serves your Rock Springs address
An exact EPA Version 3 query for WY5601182 returned a feature labeled Lead Service Line Inventory / Residential Area. It is not accepted here as a drinking-water service-area boundary.
Start with your account
Check a current bill or utility account for the provider name and system context.
Open billing/provider guidanceAsk the utility
Billing staff can confirm the account relationship; use the contact details in the utility section.
Open utility contacts →Understand the map result
The retained polygon is an LSL inventory result, not proof that every address inside or outside city limits is served by WY5601182.
Open the EPA query resultThe query was checked September 18, 2026. It is retained as an evidence-limited retrieval result, not a coverage claim. EPA Region 8 records provide identity context only.
Evidence-limited lookup
A dated hardness value was not found in the reviewed reports
The reviewed Rock Springs report tables for 2023 through 2025 do not print a total-hardness value with a unit, date, or sampling location. That is a source gap, not evidence that the water has no measurable hardness.
What to request
Ask the utility for total hardness as calcium carbonate (CaCO₃), the unit, sample date, sampling location, and whether the value describes source water, treated water, or distribution water.
Ask the utility for a dated hardness record →Sources checked: 2025-period report, 2024-period report, and 2023-period report. None of the reviewed tables supplied a report-bound hardness value.
Treatment role
Green River treatment is separate from city distribution
The reports and utility operations page identify the treatment plant and purchased-water relationship. They do not establish every current treatment chemical, corrosion-control decision, or fluoridation status.
What is verified
The Joint Powers Water Board Green River plant treats water sourced from the Green River. Treated water is pumped to Rock Springs through 30-inch and 20-inch mains. The 2025 report prints chlorine and fluoride rows, but those rows do not establish a dosing method or intentional fluoridation program.
Read treatment evidence and limits →What remains open
Current corrosion-control treatment, treatment targets, and the relationship between historical lead/copper records and current operations were not established.
Read report-period lead/copper context →Sources checked September 18, 2026. Report-period values do not establish current compliance, advisory status, safety, exposure, address-level service, or conditions at a household tap.
System operations
Storage, mains, distribution, and current-status limits
Rock Springs utility and annual-report pages provide dated operating descriptions. They are not live outage, flushing, construction, or treatment-status feeds.
Facilities and capacity
The operations page lists eight tanks with 12,000,000 gallons of total capacity, 120+ miles of 4–30 inch lines, a Green River treatment plant, and 6,500 connections. The annual report separately says the distribution system has over 330 miles of lines. Those source-specific figures are retained without silently reconciling them.
View source-specific infrastructure figures →Construction, flushing, and seasonal use
The operations page reports demand of about 10 million gallons per day in summer and 3 million in winter. No accepted capital-project register, main-replacement schedule, flushing schedule, drought stage, or address-specific outage notice was recovered.
Open the water operations destinationCheck the utility notices archiveSources checked September 18, 2026. Report-period values do not establish current compliance, advisory status, safety, exposure, address-level service, or conditions at a household tap.
Service-line evidence
Inventory access is described; property material is not determined
The 2025 report says the utility must inventory service lines and gives contacts for a copy or material question. The reviewed record does not publish categories, a replacement schedule, or a property-level result.
Report-period inventory path
Ask the report’s named water-quality contact at 307-352-1405 or the utility at 307-352-1527 for the inventory or a service-line-material question.
This contact path supports retrieval; it does not establish material at an individual property.
Replacement-program limit
No accepted current replacement-program scope, schedule, funding record, or completion record was found. This is an evidence gap, not a finding that no program exists.
Ask the utility for the current record →Source: 2026-issued report, lead/service-line section. EPA lead information is general guidance and does not identify Rock Springs property materials.
Federal monitoring context
UCMR5 and lithium are described; a system-specific PFAS result set is not accepted
The 2025 report explains UCMR5 monitoring for PFAS and lithium and shows a lithium row. It does not provide an accepted system-specific PFAS result table.
What the report contains
The report explains that UCMR5 gathers occurrence information for 29 PFAS and lithium. Its unregulated lithium row is dated 2023 and prints low 0, high 16, and annual average 9.625 ppb. Those values remain report-period evidence.
Open the source reportWhat it does not establish
No system-specific PFAS participation, sampling locations, method results, or current PFAS status was accepted for WY5601182. Do not infer detection or non-detection from the program explanation or the absence of a PFAS row.
Use the regulator contact path for a records requestReport-period monitoring
Lead and copper results are group statistics, not every tap
The 2025 table reports customer-tap monitoring statistics for a sampled group and period. It does not describe a particular home or current household-tap conditions.
Lead
- 90th percentile
- 3 ppb
- Range
- 0–17 ppb
- Sites above action level
- 1 of 32
Copper
- 90th percentile
- .67 ppm
- Range
- .01–1.2 ppm
- Sites above action level
- 0 of 32
Each printed “NO” is tied to the report row and period. It is not a current compliance, advisory, safety, or property-level conclusion. Source: 2026-issued report, page 10.
Historical annual reports
Earlier report tables, preserved separately
Expand each period to review every row transcribed from the reviewed archive source. Dates, units, ranges, limits, blank cells, and printed status values remain tied to that report period.
2024 reporting-period table14 rows · January 1–December 31, 2024 unless otherwise stated
The 2025-issued PDF was text-extracted and checked against its printed table. Its printed blank for Gross Beta’s detected value is retained.
| Reported row | Testing period | Value | Unit | Range or qualifier | Limit or standard | Printed status | Source table |
|---|---|---|---|---|---|---|---|
| Turbidity | 2024 | .109 | NTU | Met Treatment Rule 100% | MCLG N/A; MCL TT | NO | Microbiological contaminants |
| Acrylamide | 2024 | .00009 | ppm | Not printed | MCLG 0; MCL TT | NO | Synthetic organic contaminants |
| Chlorine | 2024 | LOW .11; HIGH 1.18 | ppm | Low/high | MRDGL 4; MRDL 4 | NO | Disinfectants and disinfection byproducts |
| Total Organic Carbons: TOC | 2024 | LOW 1.6; HIGH 4.3; ANNUAL AVG 35.35% | ppm | Actual % removed: annual average | MCLG N/A; MCL TT | NO | Disinfectants and disinfection byproducts |
| Haloacetic acids: HAA-5s | 2024 | LOW 2; HIGH 20; HIGHEST LRAA 15.25 | ppm | Low/high/highest LRAA | MCLG N/A; MCL 60 | NO | Disinfectants and disinfection byproducts |
| Total Trihalomethanes: TTHMs | 2024 | LOW 19; HIGH 56; HIGHEST LRAA 36.75 | ppb | Low/high/highest LRAA | MCLG N/A; MCL 80 | NO | Disinfectants and disinfection byproducts |
| Fluoride | 2024 | .2 | ppm | Not printed | MCLG 4; MCL 4 | NO | Inorganic contaminants |
| Gross Alpha | 1/2024 | .02 | pCi/L | Date shown in table | MCLG N/A; MCL 15 | NO | Radioactive contaminants |
| Gross Beta | 1/2017* | Blank in source table | pCi/L | Date shown in table | MCLG N/A; MCL 50 | NO | Radioactive contaminants |
| Combined Radium | 1/2024 | .70 | pCi/L | Date shown in table | MCLG N/A; MCL 5 | NO | Radioactive contaminants |
| Uranium | 1/2024 | 1.5 | ppb | Date shown in table | MCLG N/A; MCL 30 | NO | Radioactive contaminants |
| Lead | 2022* | 90th percentile 3 | ppb | 0–41; 4th highest value | MCL N/A; action level 15; 1 of 30 above AL | NO | Lead and copper tested at customer taps |
| Copper | 2022* | 90th percentile .72 | ppm | .08–.79; 4th highest value | MCL 1.30; action level 1.30; 0 of 30 above AL | NO | Lead and copper tested at customer taps |
| Lithium | 2023* | LOW 0; HIGH 16; ANNUAL AVG 9.625 | ppb | Low/high/annual average | MCLG N/A; MCL N/A | NO | Unregulated contaminants |
Source: 2024-period official report. These entries describe that report period, not current conditions or a household tap result.
2023 reporting-period table16 rows · January 1–December 31, 2023
The 2024-issued PDF is image-only. The table on page 5 was visually reviewed; values, dates, qualifiers, and printed blanks are transcribed without reconciliation.
| Reported row | Testing period | Value | Unit | Range or qualifier | Limit or standard | Printed status | Source table |
|---|---|---|---|---|---|---|---|
| Turbidity | 2023 | .203 | NTU | Met Treatment Rule | MCLG N/A; MCL TT | NO | Test results |
| Nitrate as N | 2023 | .14 | ppm | Not printed | MCLG 10; MCL 10 | NO | Test results |
| Acrylamide | 2023 | .00009 | ppm | Not printed | MCLG 0; MCL TT | NO | Test results |
| Fluoride | 2023 | .2 | ppm | Not printed | MCLG 4; MCL 4 | NO | Test results |
| Total Organic Carbons: TOC | 2023 | HIGH 4.7; LOW 1.5; ANNUAL AVG 68.08% | ppm | Actual % removed: annual average | MCLG N/A; MCL N/A | NO | Test results |
| Haloacetic acids: HAA-5s | 2023 | 18.5 | ppb | Annual average | MCLG N/A; MCL 60 | NO | Test results |
| Total Trihalomethanes: TTHMs | 2023 | 34.50 | ppb | Annual average | MCLG N/A; MCL 80 | NO | Test results |
| Lead | June–August 2022 | 90th percentile 3 | ppb | 4th highest value; range not printed | MCLG N/A; action level 15 | NO | Test results |
| Copper | June–August 2022 | 90th percentile .72 | ppm | 4th highest value; range not printed | MCL 1.3; action level 1.30 | NO | Test results |
| Bromate | 2023 | ND | ppm | Not printed | MCLG 0; MCL 10 | NO | Test results |
| Chlorine | 2023 | HIGH 1.60; LOW .09 | ppm | High/low | MCLG 4; MCL 4 | NO | Test results |
| Gross Alpha | 1/11/2023 | .02 | pCi/L | Date shown in table | MCLG N/A; MCL 15 | NO | Test results |
| Gross Beta | 1/2017 | .7 | pCi/L | Date shown in table | MCLG N/A; MCL 50 | NO | Test results |
| Radium 228 | 1/11/2023 | .04 | pCi/L | Date shown in table | MCLG N/A; MCL 5 | NO | Test results |
| Uranium | 1/11/2023 | .0015 | ppb | Date shown in table | MCLG N/A; MCL 30 | NO | Test results |
| Lithium | 2023 | HIGH 16; LOW 0; ANNUAL AVG 9.625 | ppb | High/low/annual average | MCLG N/A; MCL N/A | NO | Test results |
Source: 2023-period official report. These entries describe that report period, not current conditions or a household tap result.
Evidence coverage
Sanitary-survey evidence remains unresolved
No released WY5601182 sanitary-survey or capacity-development result was accepted in the reviewed source set. This is a retrieval limitation, not a compliance finding.
Request dated survey, inspection, or capacity-development records from the utility, Wyoming DEQ, or EPA Region 8. Retain the resulting record’s scope, date, and source.
Open the EPA Region 8 drinking-water contact formOpen Wyoming DEQ water-quality resourcesCustomer billing
2026–2027 residential rate context
This dated rate schedule is a billing resource, not evidence about water quality or current compliance.
- Minimum water/sewer
- $39.31
- Residential water, 0–268 cf
- $21.46 minimum for 5/8–3/4 inch meters
- Water, 269–670 cf
- $0.05145 per cubic foot, capped at $20.68
- Water over 670 cf
- $0.03617 per cubic foot
- Minimum sewer
- $17.85; $0.06661 per cubic foot
Assistance question
The reviewed schedule does not establish an affordability program. Ask billing about current options at 307-352-1527 or [email protected].
Open the official rate scheduleCustomer and report requests
Rock Springs Municipal Utility contact paths
Use the official contact details for provider confirmation, report requests, concerns, and emergencies.
Billing and report contact
212 D Street, Rock Springs, WY 82901 · Monday–Friday, 8 a.m.–5 p.m.
307-352-1527 · [email protected]
Open the official billing pageWater-quality and emergency paths
Water Superintendent: 307-352-1405. Plant: 307-875-4317 ext. 225. After-hours emergency service: 307-362-6575.
Contact destinations do not prove current notice or live outage status.
Alternate language and format requests
The 2025 report says translated and alternate-format copies can be requested by phone, text, mail, or visit. A translated report was not independently confirmed.
Call 307-352-1527, text 307-352-1447, mail 212 D Street, or visit the utility.
Notices and archive
Use the utility’s maintained notices/archive destination for current source checking. This site does not turn the link into a current notice determination.
Open the utility notices and report archiveSources checked September 18, 2026. Report-period values do not establish current compliance, advisory status, safety, exposure, address-level service, or conditions at a household tap.
Customer question
Ask before collecting a household sample
The report gives a lead-testing contact path, but the reviewed sources do not establish a current eligibility, cost, bottle, collection, or result-interpretation program.
Questions to ask
- Which contact handles a property-specific water-quality question?
- Is sampling available, and who collects or analyzes the sample?
- What fee, bottle, chain-of-custody, and interpretation steps apply?
- Which current notice or treatment records should be reviewed with the result?
Lead contact in the report
The report names the water-quality contact at 307-352-1405. This contact path does not determine a property condition or provide medical advice.
Read general EPA lead informationGovernance context
City Council and JPWB meeting context
The 2025 report says City Council meetings are usually on the first and third Tuesday at 7 p.m.; JPWB meetings are held on the fourth Thursday. Verify current times and locations before attending.
The report invites residents to attend regular City Council or Joint Powers Water Board meetings. Use current city and utility notices for agendas, location, and participation instructions.
Check the utility notices destinationReview the meeting context in the annual reportRegulatory record limits
Action and return-to-compliance history still needs retrieval
No accepted system-scoped violation, enforcement, variance, waiver, or return-to-compliance record was recovered for WY5601182 in this review.
What to request next
Request exact action IDs, effective dates, and decisions from EPA Region 8 or Wyoming DEQ. The report’s printed “NO” cells remain row- and period-specific and cannot be used to infer a complete current regulatory history.
Open the EPA Region 8 drinking-water contact formOpen Wyoming DEQ water-quality resourcesWhat To Check Next
Next steps for Rock Springs water information
Use these links to move from local context to system, report, source, and limitation context.
Open ROCK SPRINGS, CITY OF
Start with PWSID WY5601182, report context, source links, and limitations for the linked system profile.
View Open ROCK SPRINGS, CITY OFWyoming state hub
Browse available Wyoming systems, city context, and state source links.
View Wyoming state hubHow to look up your drinking water system
Start with a utility bill, PWSID, state lookup tool, or official report so you can find the public water system behind a city or provider name.
View How to look up your drinking water systemHow to read a water quality report
A plain-English walkthrough of Consumer Confidence Reports, including report years, detected contaminants, legal limits, violations, and source notes.
View How to read a water quality reportDetection vs. violation vs. advisory
A careful guide to three different water-record terms, what each one can mean, and what official source to check next.
View Detection vs. violation vs. advisoryHow to ask your water provider about testing
Focused questions to ask a utility or water provider about reports, testing, notices, PWSID, and where to verify official records.
View How to ask your water provider about testingWhat public water data can and cannot tell you
What official public water records can help you check, what they cannot prove, and why missing data needs cautious interpretation.
View What public water data can and cannot tell youCheck methodology
Understand why city pages are navigation layers and why address-level confirmation matters.
View Check methodologyEvidence
Official sources and methodology
Location context
County or borough is not listed in the current city relationship record. Use the linked system PWSID and official source instead of inferring a service area from a city boundary.
Evidence
Sources to confirm next
Use official federal, state, utility, or report sources before treating a page as final.