System Snapshot
Available system-level context
This snapshot shows the identity and context fields currently available for RAPID CITY (PWSID SD4600406). Read it with the source links and limitations below.
System identity
- PWSID
- SD4600406
- State
- South Dakota
- Linked communities
- Rapid City
- County context
- Not listed in current record
- System type
- Not listed in current record
- Source water
- Groundwater from local wells that the report describes as under the influence of surface water
- Population served
- Not listed in current record
- Service connections
- Not listed in current record
- Latest reviewed report
- 2025 report link found
- Data updated
- 2026-07-21
Read these as system-level fields from reviewed public records. Confirm provider and address-specific questions with official utility, city, state, or EPA sources.
Report-Listed Rows
Report-listed rows summarized from the latest reviewed report
2 report-listed rows are summarized for RAPID CITY. A listed row is not the same thing as a current advisory or household tap result.
- Report year
- 2025
- Rows summarized
- 2
- Source tables represented
- 1
- Scope
- Past reporting period
| Substance and testing period | Reported value | Range in report | Limit or standard | Source table | Report-printed status |
|---|---|---|---|---|---|
| BariumTesting period: July 21, 2022 | 0.1380 ppmHighest Level Detected | 0.1380 - 0.0490 | MCL: 2; MCLG: 2 | 2025 Table of Detected Regulated Contaminants For Rapid City (EPA ID 0406)Page 4Typical source, as printed: Discharge of drilling wastes; discharge from metal refineries; erosion of natural deposits | Source table has no violation or compliance column. |
| FluorideTesting period: April 29, 2025 | 0.73 ppmHighest Level Detected | 0.54 - 0.73 | MCL: 4; MCLG: <4 | 2025 Table of Detected Regulated Contaminants For Rapid City (EPA ID 0406)Page 4Typical source, as printed: Erosion of natural deposits; water additive which promotes strong teeth; discharge from fertilizer and aluminum factories | Source table has no violation or compliance column. |
Report row
Barium
- Range in report
- 0.1380 - 0.0490 ppm
- Highest Level Detected
- 0.1380 ppm
- Testing period
- July 21, 2022
- Sites above action level
- Not applicable to this summarized entry
- Limit or standard
- MCL: 2; MCLG: 2
- Report-printed status
- Source table has no violation or compliance column.
Report row
Fluoride
- Range in report
- 0.54 - 0.73 ppm
- Highest Level Detected
- 0.73 ppm
- Testing period
- April 29, 2025
- Sites above action level
- Not applicable to this summarized entry
- Limit or standard
- MCL: 4; MCLG: <4
- Report-printed status
- Source table has no violation or compliance column.
Source report notes
Source: City of Rapid City 2025 Drinking Water Report. Retrieved 2026-07-19.
- Applies to: Barium
The source prints the range in descending order as 0.1380 - 0.0490; it is preserved source-literally and is not reordered. The table has no violation or compliance column, so no status is inferred.
- Applies to: Fluoride
The table has no violation or compliance column, so no status is inferred from the reported value or range.
Review the linked source report for definitions, footnotes, and official wording.
Violation Records
Violation records shown on this page
This section shows 0 system-scoped violation detail records currently included for RAPID CITY. Annual reports and current notices can use different timing and terminology.
No system-scoped violation detail records are included in the available reviewed records for this system. This is not an official compliance finding. Check the official utility, state, or EPA source for current compliance and notice information.
Source notes for this system mention violation-related context, but this page does not currently display separate system-scoped violation detail records.
Important limitation
Profile summary note
This page summarizes public records reviewed by this site. It does not replace official notices, utility updates, or state drinking water information.
System profile limitations
- The bounded preview shows only Barium and Fluoride from physical PDF page 4. The table has no violation or compliance column, so no status is inferred.
- The Barium range is preserved exactly as the source prints it, descending from 0.1380 to 0.0490. The values are not reordered or interpreted.
- The report's other results, report-period arsenic passage, UCMR material, award and report-level safety prose, source assessment, definitions, notices, health language, and footnotes are not reproduced.
- Official provider and state links are supplied without claiming that no active advisory or other material notice exists. Those sources can change after review.
- The Rapid City relationship supports navigation only and does not prove exclusive coverage or the provider for every address.
- Address-level service can vary. Confirm the serving provider with a bill, account portal, utility, city, or state source.
- Automated retrieval of the current official Rapid City water-division page returned HTTP 403 on July 21, 2026. The city news page and state drinking-water program remained accessible; this limitation is not interpreted as evidence that a current notice is absent or present.
- This page shows summarized entries from the available report. It does not include a complete contaminant or violation table.
- Missing fields are not findings. They mean the field is not shown on this page from the records currently available.
Latest Reviewed Report
Latest reviewed report found by this site
The 2025 report found for RAPID CITY summarizes a past reporting period. It is not a live alert page.
2025 Drinking Water Report
Open 2025 water quality report (opens in a new tab)The 2025 report link is available for RAPID CITY. Use the linked source report for the full table, definitions, footnotes, and official context. This page includes summarized entries from the available report. They are not a complete copy of the report table.
- Report year
- 2025
- Summarized entries shown
- 2
- Source name
- City of Rapid City 2025 Drinking Water Report
- Source URL
- Open report source
- Source retrieved
- 2026-07-19
- Last reviewed
- 2026-07-19
Use the linked source report for the full table, definitions, footnotes, and official context.
Data coverage
This page summarizes selected public records for this public water system. It may not include every report, update, current notice, or address-level service detail.
- Latest reviewed report
- 2025 report link found
- Report-listed rows
- 2 summarized report entries shown
- Detailed violation records
- No detailed system-scoped records displayed
- Population served
- Not listed in current record
- Service connections
- Not listed in current record
- City context
- Rapid City
- County context
- Not listed in current record
Local Context
City and state context for this system
RAPID CITY is linked here to Rapid City for navigation. That relationship does not confirm the provider for a specific address; use a bill, utility portal, or official lookup source.
Linked local context
- Linked communities
- Rapid City
- County context
- Not listed in current record
- State context
- South Dakota
Browse related context
County context is shown as a field when it appears in the current record. County pages are not currently available on this site.
Corrections
Suggest a correction or newer source
If you have a newer official report, utility source, or correction, send the source link for review. This helps keep profile summaries tied to public records.
Suggest an updateEvidence
Official sources and report links
Use official federal, state, utility, or report sources before treating a page as final.
Utility website
Data methodology
Review source hierarchy, missing-data handling, and record limitations.
View Data methodologyData limitations
See why limited records, missing fields, and current notices need careful interpretation.
View Data limitations