# 84121 > Canonical source: [84121](https://www.utahwaterquality.com/zip-codes/84121/) ZIP 84121 may be served by 10 public water systems in the available records. Review each system’s latest reported status and annual report, then confirm the provider name and PWSID on your water bill. | ZIP overview | Details | | --- | --- | | ZIP code | 84121 | | County or counties | Salt Lake | | Possible water providers | 10 | | Postal-only area | No | | Status records through | June 30, 2026 | | Page facts updated | October 30, 2026 | > **Confirm your provider:** 10 public water systems intersect this area; use an address to narrow the result. Check the provider name and PWSID on your water bill before relying on a system-level result. **Available annual reports** - **SALT LAKE CITY WATER SYSTEM** — [2026 annual report]() ## What is in the drinking water for ZIP 84121? These results belong to the provider named below. Some show a yearly average; others show a reported result or range. Check your provider’s original report for the full explanation. ### SALT LAKE CITY WATER SYSTEM (UTAH18026) **Selected preview: 8 of 783 provider-specific records.** Records follow source order, with annual reports first; this selection does not rank water quality or detections. [View all 783 provider measurement records](/water-systems/UTAH18026/salt-lake-city-water-system#measurements-title) #### Salt Lake City Water Quality Report 2026 Report year 2026 · data through Not available · [Open source]() The cover labels this report 2026 and confirms PWSID UTAH18026. Its general data table is labeled 2025 data, with a warning that some representative samples may be older; individual source-cell sample years are therefore not assigned. Tap lead/copper sampling is explicitly dated 2024. Source columns are retained separately and are not household measurements. The report states no drinking-water violations were issued to SLCDPU in 2025; per-cell compliance flags are not invented. This import covers primary inorganics, selected mineral/hardness rows, lead/copper, and SLC distribution compliance; other source-table sections remain in the linked full report. | Contaminant or characteristic | Sample / reporting period | Reported result or range | Unit | Limit listed by source | What the source reports | Result context | | --- | --- | --- | --- | --- | --- | --- | | Antimony (Big Cottonwood WTP) | Not individually listed | ND | ppb | 6 | Not individually listed | Big Cottonwood WTP; The report labels its table as 2025 data but cautions that some representative samples may be older. An individual collection year is not listed for this cell. This is one source stream, not a citywide or household value. ND means none detected in the source report; NE means not established.; Source page 6 | | Antimony (City Creek WTP) | Not individually listed | ND | ppb | 6 | Not individually listed | City Creek WTP; The report labels its table as 2025 data but cautions that some representative samples may be older. An individual collection year is not listed for this cell. This is one source stream, not a citywide or household value. ND means none detected in the source report; NE means not established.; Source page 6 | | Antimony (Parleys WTP) | Not individually listed | ND | ppb | 6 | Not individually listed | Parleys WTP; The report labels its table as 2025 data but cautions that some representative samples may be older. An individual collection year is not listed for this cell. This is one source stream, not a citywide or household value. ND means none detected in the source report; NE means not established.; Source page 6 | | Antimony (Salt Lake City Wells & Springs) | Not individually listed | ND–0.7 | ppb | 6 | Not individually listed | Salt Lake City Wells & Springs; The report labels its table as 2025 data but cautions that some representative samples may be older. An individual collection year is not listed for this cell. This is one source stream, not a citywide or household value. ND means none detected in the source report; NE means not established.; Source page 6 | | Antimony (MWDSLS Little Cottonwood WTP) | Not individually listed | ND | ppb | 6 | Not individually listed | MWDSLS Little Cottonwood WTP; The report labels its table as 2025 data but cautions that some representative samples may be older. An individual collection year is not listed for this cell. This is one source stream, not a citywide or household value. ND means none detected in the source report; NE means not established.; Source page 6 | | Antimony (MWDSLS Point of the Mountain WTP) | Not individually listed | ND | ppb | 6 | Not individually listed | MWDSLS Point of the Mountain WTP; The report labels its table as 2025 data but cautions that some representative samples may be older. An individual collection year is not listed for this cell. This is one source stream, not a citywide or household value. ND means none detected in the source report; NE means not established.; Source page 6 | | Antimony (Jordan Valley Water Conservancy District) | Not individually listed | 0.003 | ppb | 6 | Not individually listed | Jordan Valley Water Conservancy District; The report labels its table as 2025 data but cautions that some representative samples may be older. An individual collection year is not listed for this cell. This is one source stream, not a citywide or household value. ND means none detected in the source report; NE means not established.; Source page 6 | | Arsenic (Big Cottonwood WTP) | Not individually listed | ND | ppb | 10 | Not individually listed | Big Cottonwood WTP; The report labels its table as 2025 data but cautions that some representative samples may be older. An individual collection year is not listed for this cell. This is one source stream, not a citywide or household value. ND means none detected in the source report; NE means not established.; Source page 6 | These are provider-level source records, not a citywide or ZIP-wide average. A detection is not automatically a violation, and household plumbing can affect tap results. ### SILVER LAKE COMPANY (UTAH18046) **Selected preview: 8 of 11 provider-specific records.** Records follow source order, with annual reports first; this selection does not rank water quality or detections. [View all 11 provider measurement records](/water-systems/UTAH18046/silver-lake-company#measurements-title) #### U.S. EPA SDWIS lead and copper monitoring records data through Not available · [Open source]() | Contaminant or characteristic | Sample / reporting period | Reported result or range | Unit | Limit listed by source | What the source reports | Result context | | --- | --- | --- | --- | --- | --- | --- | | Lead (90th percentile) | 2023-01-01 to 2025-12-31 (reporting period) | 0 | mg/L | Not listed here | A monitoring-period 90th percentile is not a compliance determination or a measurement of an individual household's water. | 90th_percentile; monitoring-period/2023-01-01/2025-12-31; Qualifier: Not reported by source; System-level 90th percentile of tap samples for the stated monitoring period. The period boundaries are reporting windows, not individual sample dates. A missing result-sign code is retained as unspecified; a zero is not relabeled as a non-detection. Individual household lead or copper concentrations can differ. | #### Utah IBIS yearly mean drinking-water concentrations data through 2023 · [Open source]() Historical annual means from Utah public monitoring records. Latest published years vary by contaminant and provider; seasonal and emergency sources are excluded. Sampling frequency and within-system variability differ. These averages cannot establish an individual tap result, detection status, or current compliance. | Contaminant or characteristic | Sample / reporting period | Reported result or range | Unit | Limit listed by source | What the source reports | Result context | | --- | --- | --- | --- | --- | --- | --- | | Uranium | 2022 | 3.05 | µg/L | Not listed here | This annual-mean dataset does not determine compliance. | annual_mean | | Haloacetic Acids Five (HAA5) | 2023 | 25.30 | µg/L | Not listed here | This annual-mean dataset does not determine compliance. | annual_mean | | Total Trihalomethanes (TTHM) | 2023 | 37.60 | µg/L | Not listed here | This annual-mean dataset does not determine compliance. | annual_mean | | Trichloroethene (TCE) | 2023 | 0.25 | µg/L | Not listed here | This annual-mean dataset does not determine compliance. | annual_mean | | Radium-228 | 2023 | 0.36 | pCi/L | Not listed here | This annual-mean dataset does not determine compliance. | annual_mean | | Tetrachloroethene (PCE) | 2023 | 0.25 | µg/L | Not listed here | This annual-mean dataset does not determine compliance. | annual_mean | | Nitrate | 2023 | 1.02 | mg/L | Not listed here | This annual-mean dataset does not determine compliance. | annual_mean | These are provider-level source records, not a citywide or ZIP-wide average. A detection is not automatically a violation, and household plumbing can affect tap results. ### JORDAN VALLEY WCD (UTAH18027) **Selected preview: 8 of 400 provider-specific records.** Records follow source order, with annual reports first; this selection does not rank water quality or detections. [View all 400 provider measurement records](/water-systems/UTAH18027/jordan-valley-wcd#measurements-title) #### U.S. EPA UCMR 5 occurrence data data through 2024 · [Open source]() | Contaminant or characteristic | Sample / reporting period | Reported result or range | Unit | Limit listed by source | What the source reports | Result context | | --- | --- | --- | --- | --- | --- | --- | | 11Cl-PF3OUdS | 2024 | <0.005 | µg/L | Not listed here | UCMR monitoring results are not a regulatory compliance determination. | sample; Sample date 2024-02-06; 10001/TP001; Reporting limit: 0.005 µg/L; Method: EPA 533; Individual sample result at the named facility and sample point. A < result is below the UCMR minimum reporting level (MRL), not zero. The MRL is an analytical reporting threshold, not a drinking-water limit. | | 4:2 FTS | 2024 | <0.003 | µg/L | Not listed here | UCMR monitoring results are not a regulatory compliance determination. | sample; Sample date 2024-02-06; 10001/TP001; Reporting limit: 0.003 µg/L; Method: EPA 533; Individual sample result at the named facility and sample point. A < result is below the UCMR minimum reporting level (MRL), not zero. The MRL is an analytical reporting threshold, not a drinking-water limit. | | 6:2 FTS | 2024 | <0.005 | µg/L | Not listed here | UCMR monitoring results are not a regulatory compliance determination. | sample; Sample date 2024-02-06; 10001/TP001; Reporting limit: 0.005 µg/L; Method: EPA 533; Individual sample result at the named facility and sample point. A < result is below the UCMR minimum reporting level (MRL), not zero. The MRL is an analytical reporting threshold, not a drinking-water limit. | | 8:2 FTS | 2024 | <0.005 | µg/L | Not listed here | UCMR monitoring results are not a regulatory compliance determination. | sample; Sample date 2024-02-06; 10001/TP001; Reporting limit: 0.005 µg/L; Method: EPA 533; Individual sample result at the named facility and sample point. A < result is below the UCMR minimum reporting level (MRL), not zero. The MRL is an analytical reporting threshold, not a drinking-water limit. | | 9Cl-PF3ONS | 2024 | <0.002 | µg/L | Not listed here | UCMR monitoring results are not a regulatory compliance determination. | sample; Sample date 2024-02-06; 10001/TP001; Reporting limit: 0.002 µg/L; Method: EPA 533; Individual sample result at the named facility and sample point. A < result is below the UCMR minimum reporting level (MRL), not zero. The MRL is an analytical reporting threshold, not a drinking-water limit. | | ADONA | 2024 | <0.003 | µg/L | Not listed here | UCMR monitoring results are not a regulatory compliance determination. | sample; Sample date 2024-02-06; 10001/TP001; Reporting limit: 0.003 µg/L; Method: EPA 533; Individual sample result at the named facility and sample point. A < result is below the UCMR minimum reporting level (MRL), not zero. The MRL is an analytical reporting threshold, not a drinking-water limit. | | HFPO-DA | 2024 | <0.005 | µg/L | Not listed here | UCMR monitoring results are not a regulatory compliance determination. | sample; Sample date 2024-02-06; 10001/TP001; Reporting limit: 0.005 µg/L; Method: EPA 533; Individual sample result at the named facility and sample point. A < result is below the UCMR minimum reporting level (MRL), not zero. The MRL is an analytical reporting threshold, not a drinking-water limit. | | NEtFOSAA | 2024 | <0.005 | µg/L | Not listed here | UCMR monitoring results are not a regulatory compliance determination. | sample; Sample date 2024-02-06; 10001/TP001; Reporting limit: 0.005 µg/L; Method: EPA 537.1; Individual sample result at the named facility and sample point. A < result is below the UCMR minimum reporting level (MRL), not zero. The MRL is an analytical reporting threshold, not a drinking-water limit. | These are provider-level source records, not a citywide or ZIP-wide average. A detection is not automatically a violation, and household plumbing can affect tap results. ### SILVER FORK PIPELINE CORP (UTAH18029) **Selected preview: 3 of 3 provider-specific records.** Records follow source order, with annual reports first; this selection does not rank water quality or detections. [View all 3 provider measurement records](/water-systems/UTAH18029/silver-fork-pipeline-corp#measurements-title) #### U.S. EPA SDWIS lead and copper monitoring records data through Not available · [Open source]() | Contaminant or characteristic | Sample / reporting period | Reported result or range | Unit | Limit listed by source | What the source reports | Result context | | --- | --- | --- | --- | --- | --- | --- | | Lead (90th percentile) | 2021-01-01 to 2023-12-31 (reporting period) | 0.0017 | mg/L | Not listed here | A monitoring-period 90th percentile is not a compliance determination or a measurement of an individual household's water. | 90th_percentile; monitoring-period/2021-01-01/2023-12-31; Qualifier: Not reported by source; System-level 90th percentile of tap samples for the stated monitoring period. The period boundaries are reporting windows, not individual sample dates. A missing result-sign code is retained as unspecified; a zero is not relabeled as a non-detection. Individual household lead or copper concentrations can differ. | #### Utah IBIS yearly mean drinking-water concentrations data through 2023 · [Open source]() Historical annual means from Utah public monitoring records. Latest published years vary by contaminant and provider; seasonal and emergency sources are excluded. Sampling frequency and within-system variability differ. These averages cannot establish an individual tap result, detection status, or current compliance. | Contaminant or characteristic | Sample / reporting period | Reported result or range | Unit | Limit listed by source | What the source reports | Result context | | --- | --- | --- | --- | --- | --- | --- | | Haloacetic Acids Five (HAA5) | 2023 | 24.50 | µg/L | Not listed here | This annual-mean dataset does not determine compliance. | annual_mean | | Total Trihalomethanes (TTHM) | 2023 | 44.10 | µg/L | Not listed here | This annual-mean dataset does not determine compliance. | annual_mean | These are provider-level source records, not a citywide or ZIP-wide average. A detection is not automatically a violation, and household plumbing can affect tap results. ### ALTA TOWN WATER SYSTEM (UTAH18049) **Selected preview: 8 of 42 provider-specific records.** Records follow source order, with annual reports first; this selection does not rank water quality or detections. [View all 42 provider measurement records](/water-systems/UTAH18049/alta-town-water-system#measurements-title) #### U.S. EPA UCMR 5 occurrence data data through 2025 · [Open source]() | Contaminant or characteristic | Sample / reporting period | Reported result or range | Unit | Limit listed by source | What the source reports | Result context | | --- | --- | --- | --- | --- | --- | --- | | 11Cl-PF3OUdS | 2025 | <0.005 | µg/L | Not listed here | UCMR monitoring results are not a regulatory compliance determination. | sample; Sample date 2025-10-21; TP001/TP001; Reporting limit: 0.005 µg/L; Method: EPA 533; Individual sample result at the named facility and sample point. A < result is below the UCMR minimum reporting level (MRL), not zero. The MRL is an analytical reporting threshold, not a drinking-water limit. | | 4:2 FTS | 2025 | <0.003 | µg/L | Not listed here | UCMR monitoring results are not a regulatory compliance determination. | sample; Sample date 2025-10-21; TP001/TP001; Reporting limit: 0.003 µg/L; Method: EPA 533; Individual sample result at the named facility and sample point. A < result is below the UCMR minimum reporting level (MRL), not zero. The MRL is an analytical reporting threshold, not a drinking-water limit. | | 6:2 FTS | 2025 | <0.005 | µg/L | Not listed here | UCMR monitoring results are not a regulatory compliance determination. | sample; Sample date 2025-10-21; TP001/TP001; Reporting limit: 0.005 µg/L; Method: EPA 533; Individual sample result at the named facility and sample point. A < result is below the UCMR minimum reporting level (MRL), not zero. The MRL is an analytical reporting threshold, not a drinking-water limit. | | 8:2 FTS | 2025 | <0.005 | µg/L | Not listed here | UCMR monitoring results are not a regulatory compliance determination. | sample; Sample date 2025-10-21; TP001/TP001; Reporting limit: 0.005 µg/L; Method: EPA 533; Individual sample result at the named facility and sample point. A < result is below the UCMR minimum reporting level (MRL), not zero. The MRL is an analytical reporting threshold, not a drinking-water limit. | | 9Cl-PF3ONS | 2025 | <0.002 | µg/L | Not listed here | UCMR monitoring results are not a regulatory compliance determination. | sample; Sample date 2025-10-21; TP001/TP001; Reporting limit: 0.002 µg/L; Method: EPA 533; Individual sample result at the named facility and sample point. A < result is below the UCMR minimum reporting level (MRL), not zero. The MRL is an analytical reporting threshold, not a drinking-water limit. | | ADONA | 2025 | <0.003 | µg/L | Not listed here | UCMR monitoring results are not a regulatory compliance determination. | sample; Sample date 2025-10-21; TP001/TP001; Reporting limit: 0.003 µg/L; Method: EPA 533; Individual sample result at the named facility and sample point. A < result is below the UCMR minimum reporting level (MRL), not zero. The MRL is an analytical reporting threshold, not a drinking-water limit. | | HFPO-DA | 2025 | <0.005 | µg/L | Not listed here | UCMR monitoring results are not a regulatory compliance determination. | sample; Sample date 2025-10-21; TP001/TP001; Reporting limit: 0.005 µg/L; Method: EPA 533; Individual sample result at the named facility and sample point. A < result is below the UCMR minimum reporting level (MRL), not zero. The MRL is an analytical reporting threshold, not a drinking-water limit. | | NEtFOSAA | 2025 | <0.005 | µg/L | Not listed here | UCMR monitoring results are not a regulatory compliance determination. | sample; Sample date 2025-10-21; TP001/TP001; Reporting limit: 0.005 µg/L; Method: EPA 537.1; Individual sample result at the named facility and sample point. A < result is below the UCMR minimum reporting level (MRL), not zero. The MRL is an analytical reporting threshold, not a drinking-water limit. | These are provider-level source records, not a citywide or ZIP-wide average. A detection is not automatically a violation, and household plumbing can affect tap results. ### HOLLIDAY WATER COMPANY (UTAH18010) **Selected preview: 8 of 190 provider-specific records.** Records follow source order, with annual reports first; this selection does not rank water quality or detections. [View all 190 provider measurement records](/water-systems/UTAH18010/holliday-water-company#measurements-title) #### U.S. EPA UCMR 5 occurrence data data through 2024 · [Open source]() | Contaminant or characteristic | Sample / reporting period | Reported result or range | Unit | Limit listed by source | What the source reports | Result context | | --- | --- | --- | --- | --- | --- | --- | | 11Cl-PF3OUdS | 2024 | <0.005 | µg/L | Not listed here | UCMR monitoring results are not a regulatory compliance determination. | sample; Sample date 2024-07-10; 00002/WS002; Reporting limit: 0.005 µg/L; Method: EPA 533; Individual sample result at the named facility and sample point. A < result is below the UCMR minimum reporting level (MRL), not zero. The MRL is an analytical reporting threshold, not a drinking-water limit. | | 4:2 FTS | 2024 | <0.003 | µg/L | Not listed here | UCMR monitoring results are not a regulatory compliance determination. | sample; Sample date 2024-07-10; 00002/WS002; Reporting limit: 0.003 µg/L; Method: EPA 533; Individual sample result at the named facility and sample point. A < result is below the UCMR minimum reporting level (MRL), not zero. The MRL is an analytical reporting threshold, not a drinking-water limit. | | 6:2 FTS | 2024 | <0.005 | µg/L | Not listed here | UCMR monitoring results are not a regulatory compliance determination. | sample; Sample date 2024-07-10; 00002/WS002; Reporting limit: 0.005 µg/L; Method: EPA 533; Individual sample result at the named facility and sample point. A < result is below the UCMR minimum reporting level (MRL), not zero. The MRL is an analytical reporting threshold, not a drinking-water limit. | | 8:2 FTS | 2024 | <0.005 | µg/L | Not listed here | UCMR monitoring results are not a regulatory compliance determination. | sample; Sample date 2024-07-10; 00002/WS002; Reporting limit: 0.005 µg/L; Method: EPA 533; Individual sample result at the named facility and sample point. A < result is below the UCMR minimum reporting level (MRL), not zero. The MRL is an analytical reporting threshold, not a drinking-water limit. | | 9Cl-PF3ONS | 2024 | <0.002 | µg/L | Not listed here | UCMR monitoring results are not a regulatory compliance determination. | sample; Sample date 2024-07-10; 00002/WS002; Reporting limit: 0.002 µg/L; Method: EPA 533; Individual sample result at the named facility and sample point. A < result is below the UCMR minimum reporting level (MRL), not zero. The MRL is an analytical reporting threshold, not a drinking-water limit. | | ADONA | 2024 | <0.003 | µg/L | Not listed here | UCMR monitoring results are not a regulatory compliance determination. | sample; Sample date 2024-07-10; 00002/WS002; Reporting limit: 0.003 µg/L; Method: EPA 533; Individual sample result at the named facility and sample point. A < result is below the UCMR minimum reporting level (MRL), not zero. The MRL is an analytical reporting threshold, not a drinking-water limit. | | HFPO-DA | 2024 | <0.005 | µg/L | Not listed here | UCMR monitoring results are not a regulatory compliance determination. | sample; Sample date 2024-07-10; 00002/WS002; Reporting limit: 0.005 µg/L; Method: EPA 533; Individual sample result at the named facility and sample point. A < result is below the UCMR minimum reporting level (MRL), not zero. The MRL is an analytical reporting threshold, not a drinking-water limit. | | NEtFOSAA | 2024 | <0.005 | µg/L | Not listed here | UCMR monitoring results are not a regulatory compliance determination. | sample; Sample date 2024-07-10; 00002/WS002; Reporting limit: 0.005 µg/L; Method: EPA 537.1; Individual sample result at the named facility and sample point. A < result is below the UCMR minimum reporting level (MRL), not zero. The MRL is an analytical reporting threshold, not a drinking-water limit. | These are provider-level source records, not a citywide or ZIP-wide average. A detection is not automatically a violation, and household plumbing can affect tap results. ### MURRAY CITY WATER SYSTEM (UTAH18024) **Selected preview: 8 of 580 provider-specific records.** Records follow source order, with annual reports first; this selection does not rank water quality or detections. [View all 580 provider measurement records](/water-systems/UTAH18024/murray-city-water-system#measurements-title) #### U.S. EPA UCMR 5 occurrence data data through 2024 · [Open source]() | Contaminant or characteristic | Sample / reporting period | Reported result or range | Unit | Limit listed by source | What the source reports | Result context | | --- | --- | --- | --- | --- | --- | --- | | 11Cl-PF3OUdS | 2024 | <0.005 | µg/L | Not listed here | UCMR monitoring results are not a regulatory compliance determination. | sample; Sample date 2024-10-15; SS066/SS066; Reporting limit: 0.005 µg/L; Method: EPA 533; Individual sample result at the named facility and sample point. A < result is below the UCMR minimum reporting level (MRL), not zero. The MRL is an analytical reporting threshold, not a drinking-water limit. | | 4:2 FTS | 2024 | <0.003 | µg/L | Not listed here | UCMR monitoring results are not a regulatory compliance determination. | sample; Sample date 2024-10-15; SS066/SS066; Reporting limit: 0.003 µg/L; Method: EPA 533; Individual sample result at the named facility and sample point. A < result is below the UCMR minimum reporting level (MRL), not zero. The MRL is an analytical reporting threshold, not a drinking-water limit. | | 6:2 FTS | 2024 | <0.005 | µg/L | Not listed here | UCMR monitoring results are not a regulatory compliance determination. | sample; Sample date 2024-10-15; SS066/SS066; Reporting limit: 0.005 µg/L; Method: EPA 533; Individual sample result at the named facility and sample point. A < result is below the UCMR minimum reporting level (MRL), not zero. The MRL is an analytical reporting threshold, not a drinking-water limit. | | 8:2 FTS | 2024 | <0.005 | µg/L | Not listed here | UCMR monitoring results are not a regulatory compliance determination. | sample; Sample date 2024-10-15; SS066/SS066; Reporting limit: 0.005 µg/L; Method: EPA 533; Individual sample result at the named facility and sample point. A < result is below the UCMR minimum reporting level (MRL), not zero. The MRL is an analytical reporting threshold, not a drinking-water limit. | | 9Cl-PF3ONS | 2024 | <0.002 | µg/L | Not listed here | UCMR monitoring results are not a regulatory compliance determination. | sample; Sample date 2024-10-15; SS066/SS066; Reporting limit: 0.002 µg/L; Method: EPA 533; Individual sample result at the named facility and sample point. A < result is below the UCMR minimum reporting level (MRL), not zero. The MRL is an analytical reporting threshold, not a drinking-water limit. | | ADONA | 2024 | <0.003 | µg/L | Not listed here | UCMR monitoring results are not a regulatory compliance determination. | sample; Sample date 2024-10-15; SS066/SS066; Reporting limit: 0.003 µg/L; Method: EPA 533; Individual sample result at the named facility and sample point. A < result is below the UCMR minimum reporting level (MRL), not zero. The MRL is an analytical reporting threshold, not a drinking-water limit. | | HFPO-DA | 2024 | <0.005 | µg/L | Not listed here | UCMR monitoring results are not a regulatory compliance determination. | sample; Sample date 2024-10-15; SS066/SS066; Reporting limit: 0.005 µg/L; Method: EPA 533; Individual sample result at the named facility and sample point. A < result is below the UCMR minimum reporting level (MRL), not zero. The MRL is an analytical reporting threshold, not a drinking-water limit. | | NEtFOSAA | 2024 | <0.005 | µg/L | Not listed here | UCMR monitoring results are not a regulatory compliance determination. | sample; Sample date 2024-10-15; SS066/SS066; Reporting limit: 0.005 µg/L; Method: EPA 537.1; Individual sample result at the named facility and sample point. A < result is below the UCMR minimum reporting level (MRL), not zero. The MRL is an analytical reporting threshold, not a drinking-water limit. | These are provider-level source records, not a citywide or ZIP-wide average. A detection is not automatically a violation, and household plumbing can affect tap results. ### MOUNTAIN REGIONAL WATER SSD (UTAH22137) **Selected preview: 8 of 191 provider-specific records.** Records follow source order, with annual reports first; this selection does not rank water quality or detections. [View all 191 provider measurement records](/water-systems/UTAH22137/mountain-regional-water-ssd#measurements-title) #### U.S. EPA UCMR 5 occurrence data data through 2023 · [Open source]() | Contaminant or characteristic | Sample / reporting period | Reported result or range | Unit | Limit listed by source | What the source reports | Result context | | --- | --- | --- | --- | --- | --- | --- | | 11Cl-PF3OUdS | 2023 | <0.005 | µg/L | Not listed here | UCMR monitoring results are not a regulatory compliance determination. | sample; Sample date 2023-09-26; ST006/ST006; Reporting limit: 0.005 µg/L; Method: EPA 533; Individual sample result at the named facility and sample point. A < result is below the UCMR minimum reporting level (MRL), not zero. The MRL is an analytical reporting threshold, not a drinking-water limit. | | 4:2 FTS | 2023 | <0.003 | µg/L | Not listed here | UCMR monitoring results are not a regulatory compliance determination. | sample; Sample date 2023-09-26; ST006/ST006; Reporting limit: 0.003 µg/L; Method: EPA 533; Individual sample result at the named facility and sample point. A < result is below the UCMR minimum reporting level (MRL), not zero. The MRL is an analytical reporting threshold, not a drinking-water limit. | | 6:2 FTS | 2023 | <0.005 | µg/L | Not listed here | UCMR monitoring results are not a regulatory compliance determination. | sample; Sample date 2023-09-26; ST006/ST006; Reporting limit: 0.005 µg/L; Method: EPA 533; Individual sample result at the named facility and sample point. A < result is below the UCMR minimum reporting level (MRL), not zero. The MRL is an analytical reporting threshold, not a drinking-water limit. | | 8:2 FTS | 2023 | <0.005 | µg/L | Not listed here | UCMR monitoring results are not a regulatory compliance determination. | sample; Sample date 2023-09-26; ST006/ST006; Reporting limit: 0.005 µg/L; Method: EPA 533; Individual sample result at the named facility and sample point. A < result is below the UCMR minimum reporting level (MRL), not zero. The MRL is an analytical reporting threshold, not a drinking-water limit. | | 9Cl-PF3ONS | 2023 | <0.002 | µg/L | Not listed here | UCMR monitoring results are not a regulatory compliance determination. | sample; Sample date 2023-09-26; ST006/ST006; Reporting limit: 0.002 µg/L; Method: EPA 533; Individual sample result at the named facility and sample point. A < result is below the UCMR minimum reporting level (MRL), not zero. The MRL is an analytical reporting threshold, not a drinking-water limit. | | ADONA | 2023 | <0.003 | µg/L | Not listed here | UCMR monitoring results are not a regulatory compliance determination. | sample; Sample date 2023-09-26; ST006/ST006; Reporting limit: 0.003 µg/L; Method: EPA 533; Individual sample result at the named facility and sample point. A < result is below the UCMR minimum reporting level (MRL), not zero. The MRL is an analytical reporting threshold, not a drinking-water limit. | | HFPO-DA | 2023 | <0.005 | µg/L | Not listed here | UCMR monitoring results are not a regulatory compliance determination. | sample; Sample date 2023-09-26; ST006/ST006; Reporting limit: 0.005 µg/L; Method: EPA 533; Individual sample result at the named facility and sample point. A < result is below the UCMR minimum reporting level (MRL), not zero. The MRL is an analytical reporting threshold, not a drinking-water limit. | | NEtFOSAA | 2023 | <0.005 | µg/L | Not listed here | UCMR monitoring results are not a regulatory compliance determination. | sample; Sample date 2023-09-26; ST006/ST006; Reporting limit: 0.005 µg/L; Method: EPA 537.1; Individual sample result at the named facility and sample point. A < result is below the UCMR minimum reporting level (MRL), not zero. The MRL is an analytical reporting threshold, not a drinking-water limit. | These are provider-level source records, not a citywide or ZIP-wide average. A detection is not automatically a violation, and household plumbing can affect tap results. ### PARK CITY WATER SYSTEM (UTAH22011) **Selected preview: 8 of 158 provider-specific records.** Records follow source order, with annual reports first; this selection does not rank water quality or detections. [View all 158 provider measurement records](/water-systems/UTAH22011/park-city-water-system#measurements-title) #### U.S. EPA UCMR 5 occurrence data data through 2024 · [Open source]() | Contaminant or characteristic | Sample / reporting period | Reported result or range | Unit | Limit listed by source | What the source reports | Result context | | --- | --- | --- | --- | --- | --- | --- | | 11Cl-PF3OUdS | 2024 | <0.005 | µg/L | Not listed here | UCMR monitoring results are not a regulatory compliance determination. | sample; Sample date 2024-12-17; SS004/SS004; Reporting limit: 0.005 µg/L; Method: EPA 533; Individual sample result at the named facility and sample point. A < result is below the UCMR minimum reporting level (MRL), not zero. The MRL is an analytical reporting threshold, not a drinking-water limit. | | 4:2 FTS | 2024 | <0.003 | µg/L | Not listed here | UCMR monitoring results are not a regulatory compliance determination. | sample; Sample date 2024-12-17; SS004/SS004; Reporting limit: 0.003 µg/L; Method: EPA 533; Individual sample result at the named facility and sample point. A < result is below the UCMR minimum reporting level (MRL), not zero. The MRL is an analytical reporting threshold, not a drinking-water limit. | | 6:2 FTS | 2024 | <0.005 | µg/L | Not listed here | UCMR monitoring results are not a regulatory compliance determination. | sample; Sample date 2024-12-17; SS004/SS004; Reporting limit: 0.005 µg/L; Method: EPA 533; Individual sample result at the named facility and sample point. A < result is below the UCMR minimum reporting level (MRL), not zero. The MRL is an analytical reporting threshold, not a drinking-water limit. | | 8:2 FTS | 2024 | <0.005 | µg/L | Not listed here | UCMR monitoring results are not a regulatory compliance determination. | sample; Sample date 2024-12-17; SS004/SS004; Reporting limit: 0.005 µg/L; Method: EPA 533; Individual sample result at the named facility and sample point. A < result is below the UCMR minimum reporting level (MRL), not zero. The MRL is an analytical reporting threshold, not a drinking-water limit. | | 9Cl-PF3ONS | 2024 | <0.002 | µg/L | Not listed here | UCMR monitoring results are not a regulatory compliance determination. | sample; Sample date 2024-12-17; SS004/SS004; Reporting limit: 0.002 µg/L; Method: EPA 533; Individual sample result at the named facility and sample point. A < result is below the UCMR minimum reporting level (MRL), not zero. The MRL is an analytical reporting threshold, not a drinking-water limit. | | ADONA | 2024 | <0.003 | µg/L | Not listed here | UCMR monitoring results are not a regulatory compliance determination. | sample; Sample date 2024-12-17; SS004/SS004; Reporting limit: 0.003 µg/L; Method: EPA 533; Individual sample result at the named facility and sample point. A < result is below the UCMR minimum reporting level (MRL), not zero. The MRL is an analytical reporting threshold, not a drinking-water limit. | | HFPO-DA | 2024 | <0.005 | µg/L | Not listed here | UCMR monitoring results are not a regulatory compliance determination. | sample; Sample date 2024-12-17; SS004/SS004; Reporting limit: 0.005 µg/L; Method: EPA 533; Individual sample result at the named facility and sample point. A < result is below the UCMR minimum reporting level (MRL), not zero. The MRL is an analytical reporting threshold, not a drinking-water limit. | | NEtFOSAA | 2024 | <0.005 | µg/L | Not listed here | UCMR monitoring results are not a regulatory compliance determination. | sample; Sample date 2024-12-17; SS004/SS004; Reporting limit: 0.005 µg/L; Method: EPA 537.1; Individual sample result at the named facility and sample point. A < result is below the UCMR minimum reporting level (MRL), not zero. The MRL is an analytical reporting threshold, not a drinking-water limit. | These are provider-level source records, not a citywide or ZIP-wide average. A detection is not automatically a violation, and household plumbing can affect tap results. ### SANDY CITY WATER SYSTEM (UTAH18028) **Selected preview: 8 of 250 provider-specific records.** Records follow source order, with annual reports first; this selection does not rank water quality or detections. [View all 250 provider measurement records](/water-systems/UTAH18028/sandy-city-water-system#measurements-title) #### U.S. EPA UCMR 5 occurrence data data through 2024 · [Open source]() | Contaminant or characteristic | Sample / reporting period | Reported result or range | Unit | Limit listed by source | What the source reports | Result context | | --- | --- | --- | --- | --- | --- | --- | | 11Cl-PF3OUdS | 2024 | <0.005 | µg/L | Not listed here | UCMR monitoring results are not a regulatory compliance determination. | sample; Sample date 2024-06-24; 00006/WS006; Reporting limit: 0.005 µg/L; Method: EPA 533; Individual sample result at the named facility and sample point. A < result is below the UCMR minimum reporting level (MRL), not zero. The MRL is an analytical reporting threshold, not a drinking-water limit. | | 4:2 FTS | 2024 | <0.003 | µg/L | Not listed here | UCMR monitoring results are not a regulatory compliance determination. | sample; Sample date 2024-06-24; 00006/WS006; Reporting limit: 0.003 µg/L; Method: EPA 533; Individual sample result at the named facility and sample point. A < result is below the UCMR minimum reporting level (MRL), not zero. The MRL is an analytical reporting threshold, not a drinking-water limit. | | 6:2 FTS | 2024 | <0.005 | µg/L | Not listed here | UCMR monitoring results are not a regulatory compliance determination. | sample; Sample date 2024-06-24; 00006/WS006; Reporting limit: 0.005 µg/L; Method: EPA 533; Individual sample result at the named facility and sample point. A < result is below the UCMR minimum reporting level (MRL), not zero. The MRL is an analytical reporting threshold, not a drinking-water limit. | | 8:2 FTS | 2024 | <0.005 | µg/L | Not listed here | UCMR monitoring results are not a regulatory compliance determination. | sample; Sample date 2024-06-24; 00006/WS006; Reporting limit: 0.005 µg/L; Method: EPA 533; Individual sample result at the named facility and sample point. A < result is below the UCMR minimum reporting level (MRL), not zero. The MRL is an analytical reporting threshold, not a drinking-water limit. | | 9Cl-PF3ONS | 2024 | <0.002 | µg/L | Not listed here | UCMR monitoring results are not a regulatory compliance determination. | sample; Sample date 2024-06-24; 00006/WS006; Reporting limit: 0.002 µg/L; Method: EPA 533; Individual sample result at the named facility and sample point. A < result is below the UCMR minimum reporting level (MRL), not zero. The MRL is an analytical reporting threshold, not a drinking-water limit. | | ADONA | 2024 | <0.003 | µg/L | Not listed here | UCMR monitoring results are not a regulatory compliance determination. | sample; Sample date 2024-06-24; 00006/WS006; Reporting limit: 0.003 µg/L; Method: EPA 533; Individual sample result at the named facility and sample point. A < result is below the UCMR minimum reporting level (MRL), not zero. The MRL is an analytical reporting threshold, not a drinking-water limit. | | HFPO-DA | 2024 | <0.005 | µg/L | Not listed here | UCMR monitoring results are not a regulatory compliance determination. | sample; Sample date 2024-06-24; 00006/WS006; Reporting limit: 0.005 µg/L; Method: EPA 533; Individual sample result at the named facility and sample point. A < result is below the UCMR minimum reporting level (MRL), not zero. The MRL is an analytical reporting threshold, not a drinking-water limit. | | NEtFOSAA | 2024 | <0.005 | µg/L | Not listed here | UCMR monitoring results are not a regulatory compliance determination. | sample; Sample date 2024-06-24; 00006/WS006; Reporting limit: 0.005 µg/L; Method: EPA 537.1; Individual sample result at the named facility and sample point. A < result is below the UCMR minimum reporting level (MRL), not zero. The MRL is an analytical reporting threshold, not a drinking-water limit. | These are provider-level source records, not a citywide or ZIP-wide average. A detection is not automatically a violation, and household plumbing can affect tap results. ## Which public water systems may serve ZIP 84121? These providers may serve homes in this ZIP code. Check your water bill to find yours. Your home’s plumbing may also affect water at your faucet. ### Provider 01: SALT LAKE CITY WATER SYSTEM | Provider fact | Details | | --- | --- | | Public Water System ID | UTAH18026 | | Reported status | No reported open violations | | Status current through | June 30, 2026 | | Open health-based violations | 0 | | Open monitoring/reporting violations | 0 | [Provider details](/water-systems/UTAH18026/salt-lake-city-water-system/) · [Reported-status source](https://echo.epa.gov/tools/data-downloads/sdwa-download-summary) · [Salt Lake City Water Quality Report 2026](https://www.slc.gov/utilities/wp-content/uploads/sites/22/2026/06/2026-04_Water-Quality-Report-2026-digital-FNL.pdf) No active notices are listed here. Check with your provider for the latest local advice. ### Provider 02: SILVER LAKE COMPANY | Provider fact | Details | | --- | --- | | Public Water System ID | UTAH18046 | | Reported status | No reported open violations | | Status current through | June 30, 2026 | | Open health-based violations | 0 | | Open monitoring/reporting violations | 0 | [Provider details](/water-systems/UTAH18046/silver-lake-company/) · [Reported-status source](https://echo.epa.gov/tools/data-downloads/sdwa-download-summary) No active notices are listed here. Check with your provider for the latest local advice. ### Provider 03: JORDAN VALLEY WCD | Provider fact | Details | | --- | --- | | Public Water System ID | UTAH18027 | | Reported status | No reported open violations | | Status current through | June 30, 2026 | | Open health-based violations | 0 | | Open monitoring/reporting violations | 0 | [Provider details](/water-systems/UTAH18027/jordan-valley-wcd/) · [Reported-status source](https://echo.epa.gov/tools/data-downloads/sdwa-download-summary) No active notices are listed here. Check with your provider for the latest local advice. ### Provider 04: SILVER FORK PIPELINE CORP | Provider fact | Details | | --- | --- | | Public Water System ID | UTAH18029 | | Reported status | No reported open violations | | Status current through | June 30, 2026 | | Open health-based violations | 0 | | Open monitoring/reporting violations | 0 | [Provider details](/water-systems/UTAH18029/silver-fork-pipeline-corp/) · [Reported-status source](https://echo.epa.gov/tools/data-downloads/sdwa-download-summary) No active notices are listed here. Check with your provider for the latest local advice. ### Provider 05: ALTA TOWN WATER SYSTEM | Provider fact | Details | | --- | --- | | Public Water System ID | UTAH18049 | | Reported status | No reported open violations | | Status current through | June 30, 2026 | | Open health-based violations | 0 | | Open monitoring/reporting violations | 0 | [Provider details](/water-systems/UTAH18049/alta-town-water-system/) · [Reported-status source](https://echo.epa.gov/tools/data-downloads/sdwa-download-summary) No active notices are listed here. Check with your provider for the latest local advice. ### Provider 06: HOLLIDAY WATER COMPANY | Provider fact | Details | | --- | --- | | Public Water System ID | UTAH18010 | | Reported status | No reported open violations | | Status current through | June 30, 2026 | | Open health-based violations | 0 | | Open monitoring/reporting violations | 0 | [Provider details](/water-systems/UTAH18010/holliday-water-company/) · [Reported-status source](https://echo.epa.gov/tools/data-downloads/sdwa-download-summary) No active notices are listed here. Check with your provider for the latest local advice. ### Provider 07: MURRAY CITY WATER SYSTEM | Provider fact | Details | | --- | --- | | Public Water System ID | UTAH18024 | | Reported status | No reported open violations | | Status current through | June 30, 2026 | | Open health-based violations | 0 | | Open monitoring/reporting violations | 0 | [Provider details](/water-systems/UTAH18024/murray-city-water-system/) · [Reported-status source](https://echo.epa.gov/tools/data-downloads/sdwa-download-summary) No active notices are listed here. Check with your provider for the latest local advice. ### Provider 08: MOUNTAIN REGIONAL WATER SSD | Provider fact | Details | | --- | --- | | Public Water System ID | UTAH22137 | | Reported status | No reported open violations | | Status current through | June 30, 2026 | | Open health-based violations | 0 | | Open monitoring/reporting violations | 0 | [Provider details](/water-systems/UTAH22137/mountain-regional-water-ssd/) · [Reported-status source](https://echo.epa.gov/tools/data-downloads/sdwa-download-summary) No active notices are listed here. Check with your provider for the latest local advice. ### Provider 09: PARK CITY WATER SYSTEM | Provider fact | Details | | --- | --- | | Public Water System ID | UTAH22011 | | Reported status | No reported open violations | | Status current through | June 30, 2026 | | Open health-based violations | 0 | | Open monitoring/reporting violations | 0 | [Provider details](/water-systems/UTAH22011/park-city-water-system/) · [Reported-status source](https://echo.epa.gov/tools/data-downloads/sdwa-download-summary) No active notices are listed here. Check with your provider for the latest local advice. ### Provider 10: SANDY CITY WATER SYSTEM | Provider fact | Details | | --- | --- | | Public Water System ID | UTAH18028 | | Reported status | No reported open violations | | Status current through | June 30, 2026 | | Open health-based violations | 0 | | Open monitoring/reporting violations | 0 | [Provider details](/water-systems/UTAH18028/sandy-city-water-system/) · [Reported-status source](https://echo.epa.gov/tools/data-downloads/sdwa-download-summary) No active notices are listed here. Check with your provider for the latest local advice. ## What are the limits of a ZIP-level match? - City and ZIP boundaries do not identify a household's water provider. Use address lookup for the most specific result. “No reported open violations” means only that none were reported in the latest available records. It does not mean “safe,” “clean,” or “pass.” Regulatory data can lag local notices. ## Where did these facts come from? - **EPA Public Water System Service Areas** — United States Environmental Protection Agency; source status: current; last successful import: October 6, 2026; last checked: October 6, 2026 ([open source](https://www.epa.gov/ground-water-and-drinking-water)). - **EPA Safe Drinking Water Information System** — United States Environmental Protection Agency; source status: current; last successful import: October 6, 2026; last checked: October 6, 2026 ([open source](https://www.epa.gov/enviro/sdwis-search)). - **Utah Geospatial Resource Center Place Boundaries** — Utah Geospatial Resource Center; source status: current; last successful import: October 30, 2026; last checked: October 30, 2026 ([open source](https://gis.utah.gov/)). - **Utility Consumer Confidence Reports** — Public water system operators; source status: current; last successful import: November 2, 2026; last checked: November 2, 2026 ([open source](https://www.epa.gov/ccr)). ## Questions residents ask ### How do I find the provider for my home? Use the private address lookup, then confirm the result against the provider and PWSID printed on your water bill. ### Are these ZIP results live? No. Annual reports and regulatory systems update on reporting cycles. Contact the utility for current notices or an abrupt local change.