PFOS
1.2× the limitPerfluorooctanesulfonic acid
4.9ng/L
Each block = 4.0 ng/L federal MCL (2024)
EPA UCMR 5 · sampled 2023Evidence
City water report · 2026
Is Indian Trail Tap Water Safe? 2026 Water Quality Report
Short answer: Two PFAS, PFOA and PFOS, are above their federal limits (2024 limits that water systems have until at least 2029 to meet); a past health-based violation (E. coli) is on record. Union County Water System serves 169,685 residents.
Likely match, check your bill
UNION COUNTY WATER SYSTEM serves Indian Trail
Your water bill or annual water quality report names your actual supplier.
- Source
- Surface water
- Lead service lines
- 0 lead
- UNION COUNTY WATER SYSTEMThis reportNC0190413 · 169,685 served
Your water utility
Also supplies: Waxhaw, Stallings, Weddington, Wesley Chapel, Unionville, Marvin, Lake Park, Mineral Springs, Hemby Bridge
What stands out
Two PFAS above the 2024 federal limit
Each bar is drawn in blocks of the 4.0 ng/L federal MCL (2024), so the length shows how far above it the result sits.
PFOA
1.1× the limitPerfluorooctanoic acid
4.2ng/L
Each block = 4.0 ng/L federal MCL (2024)
EPA UCMR 5 · sampled 2023Evidence
Coverage by group
32 results on record- PFAS (forever chemicals)2 above · 3 detected · 24 not detected
- Metals & lead1 not detected
- Disinfection by-productsNot monitored
- Other1 above · 1 not detected
Every detected result
6 detected results, by distance from their limit
UNION COUNTY WATER SYSTEM (EPA PWSID NC0190413) delivers surface water to 169,685 residents. This report reflects 29 individual PFAS result(s) from the source UCMR5 observations and the latest Lead & Copper Rule 90th-percentile result. Water hardness and disinfectant type are pending the utility's own annual report.
- Perfluorooctanesulfonic acid (PFOS)EPA UCMR 5 · 20234.0 ng/L federal MCL (2024)4.9ng/LAbove limit
- Perfluorooctanoic acid (PFOA)EPA UCMR 5 · 20234.0 ng/L federal MCL (2024)4.2ng/LAbove limit
- Perfluorohexanoic acid (PFHxA)EPA UCMR 5 · 2023400,000 ng/L Michigan EGLE state MCL (strictest US state)7.4ng/LWithin reference
- E. coliEPA SDWIS violations · 2020Federal MCL—Above limit
- Perfluorobutanoic acid (PFBA)EPA UCMR 5 · 2023No federal or state limit; shown for transparency6.5ng/LDetected · no limit
- Perfluoropentanoic acid (PFPeA)EPA UCMR 5 · 2023No federal or state limit; shown for transparency10ng/LDetected · no limit
26 other contaminants tested, none detected
- 11Cl-PF3OUdS
- 4:2 FTS
- 6:2 FTS
- 8:2 FTS
- 9Cl-PF3ONS
- ADONA
- HFPO-DA (GenX)
- NEtFOSAA
- NFDHA
- NMeFOSAA
- PFBS
- PFDA
- PFDoA
- PFEESA
- PFHpA
- PFHpS
- PFHxS
- PFMBA
- PFMPA
- PFNA
- PFPeS
- PFTA
- PFTrDA
- PFUnA
- Lithium
- Lead (90th percentile)
Track record
2health-based violations in the last 10 years
From EPA SDWIS. Counted once per contaminant per year, as in the Track record score.
Not in this recordDisinfection by-products weren't monitored in this dataset
No result is not a pass. Your utility's annual water quality report may list them, and a certified lab test covers your own tap.
Health-based violations, last 10 years
Every filing is listed; the Track record score counts at most one per contaminant per year.
- Revised Total Coliform Rule
- Total Haloacetic Acids (HAA5)
Resolved
- Revised Total Coliform RuleMCL
to Resolved
- Total Haloacetic Acids (HAA5)MCL
to Resolved
What you can do
Test first, then treat what was found
- 01 · TestTest your own tap
A tap test can confirm levels at your home before you choose treatment.
Certified labHow to test your tap → - 02 · Treat PFASReverse osmosis, or carbon certified for PFAS
PFOS 4.9 ng/L, above the 4 ng/L limit (+4 more PFAS detected)
NSF/ANSI 58 or 53, with PFOA/PFOS/PFHxA/PFBA/PFPeA named on the listingTreatment for PFAS →
Commercial
Certified for a concern found here
Each card names which Indian Trail findings its current certification covers, and which it doesn't.
As an Amazon Associate, PurityMap earns from qualifying purchases. A product appears here only when a current certification record covers at least one identified concern; every concern stays listed. The retail offer is looked up afterwards and never changes which products appear or their order. Affiliate disclosure.
Under-Sink Filter
Aquasana Claryum 2-Stage Under-Sink Filter (AQ-5200)
- PFOA: eligible, evidence match
- PFOS: eligible, evidence match
- Not established: Perfluorohexanoic acid (PFHxA), Perfluorobutanoic acid (PFBA), Perfluoropentanoic acid (PFPeA)
Not suitable for (5)
- Treating every tap in the home
- A whole-home hard-water or scale problem
- All PFAS: its evidence covers only the compounds it names
- Anyone who can't plumb, drill or hire an installer
- Renters who can't modify plumbing
Under-Sink Filter
Aquasana Claryum 3-Stage Max Flow Under-Sink Filter (AQ-6300M)
- PFOA: eligible, evidence match
- PFOS: eligible, evidence match
- Not established: Perfluorohexanoic acid (PFHxA), Perfluorobutanoic acid (PFBA), Perfluoropentanoic acid (PFPeA)
Not suitable for (5)
- Treating every tap in the home
- A whole-home hard-water or scale problem
- All PFAS: its evidence covers only the compounds it names
- Anyone who can't plumb, drill or hire an installer
- Renters who can't modify plumbing
See all 9 products certified for a Indian Trail concern →
Countertop System
Aquasana Clean Water Machine Countertop Filter (AQ-CWM2)
- PFOA: eligible, evidence match
- PFOS: eligible, evidence match
- Not established: Perfluorohexanoic acid (PFHxA), Perfluorobutanoic acid (PFBA), Perfluoropentanoic acid (PFPeA)
Not suitable for (3)
- Treating every tap in the home
- A whole-home hard-water or scale problem
- All PFAS: its evidence covers only the compounds it names
Countertop System
Patriot Pure Ultimate Water Filtration System
- PFOA: eligible, evidence match
- PFOS: eligible, evidence match
- Not established: Perfluorohexanoic acid (PFHxA), Perfluorobutanoic acid (PFBA), Perfluoropentanoic acid (PFPeA)
Not suitable for (3)
- Treating every tap in the home
- A whole-home hard-water or scale problem
- All PFAS: its evidence covers only the compounds it names
Countertop System
AquaTru Carafe Countertop Reverse-Osmosis Purifier (AT100)
- PFOA: eligible, evidence match
- PFOS: eligible, evidence match
- Not established: Perfluorohexanoic acid (PFHxA), Perfluorobutanoic acid (PFBA), Perfluoropentanoic acid (PFPeA)
Not suitable for (3)
- Treating every tap in the home
- A whole-home hard-water or scale problem
- All PFAS: its evidence covers only the compounds it names
Countertop System
AquaTru Classic Countertop Reverse-Osmosis Purifier (AT2000)
- PFOA: eligible, evidence match
- PFOS: eligible, evidence match
- Not established: Perfluorohexanoic acid (PFHxA), Perfluorobutanoic acid (PFBA), Perfluoropentanoic acid (PFPeA)
Not suitable for (3)
- Treating every tap in the home
- A whole-home hard-water or scale problem
- All PFAS: its evidence covers only the compounds it names
Under-Sink Filter
Waterdrop G3P600 Tankless Reverse-Osmosis System
- PFOA: eligible, evidence match
- PFOS: eligible, evidence match
- Not established: Perfluorohexanoic acid (PFHxA), Perfluorobutanoic acid (PFBA), Perfluoropentanoic acid (PFPeA)
Not suitable for (5)
- Treating every tap in the home
- A whole-home hard-water or scale problem
- All PFAS: its evidence covers only the compounds it names
- Anyone who can't plumb, drill or hire an installer
- Renters who can't modify plumbing
Under-Sink Filter
Waterdrop G3P800 Tankless Reverse-Osmosis System
- PFOA: eligible, evidence match
- PFOS: eligible, evidence match
- Not established: Perfluorohexanoic acid (PFHxA), Perfluorobutanoic acid (PFBA), Perfluoropentanoic acid (PFPeA)
Not suitable for (5)
- Treating every tap in the home
- A whole-home hard-water or scale problem
- All PFAS: its evidence covers only the compounds it names
- Anyone who can't plumb, drill or hire an installer
- Renters who can't modify plumbing
Refrigerator Filter
Whirlpool Filter 3 Refrigerator Water Filter (WHR3RXD1)
- PFOA: eligible, evidence match
- PFOS: eligible, evidence match
- Not established: Perfluorohexanoic acid (PFHxA), Perfluorobutanoic acid (PFBA), Perfluoropentanoic acid (PFPeA)
Not suitable for (3)
- Treating every tap in the home
- A whole-home hard-water or scale problem
- All PFAS: its evidence covers only the compounds it names
Questions
Frequently asked questions
Is Indian Trail tap water safe to drink?
PurityMap does not give a safe/unsafe verdict; it shows what the public records measured. For Indian Trail, PFOS 4.9 ng/L and PFOA 4.2 ng/L were measured above the 4 ng/L federal limit in EPA's 2024 testing; one health-based violation is on record (E. coli). UNION COUNTY WATER SYSTEM (PWSID NC0190413) has a Purity Score of 72/100 (confidence: moderate), assessed at the water-system level and computed only from contaminants that were measured. Water can change in your own pipes, so a certified test is the only way to know what comes out of your tap.
Who provides tap water in Indian Trail?
UNION COUNTY WATER SYSTEM (PWS ID NC0190413) is the public water system on record for Indian Trail, North Carolina, serving about 169,685 people. Confirm the utility on your water bill before acting on a specific finding.
Where does Indian Trail get its drinking water?
Surface water (primary source of record in EPA SDWIS).
Are PFAS "forever chemicals" in Indian Trail's water?
Yes. In EPA's UCMR 5 testing (2023-01-18 to 2023-10-04), PFOS was measured at 4.9 ng/L against a 4 ng/L federal limit and PFOA was measured at 4.2 ng/L against a 4 ng/L federal limit. PFHxA (7.4 ng/L, below the 400,000 ng/L state limit) was also detected. PFBA (6.5 ng/L) and PFPeA (10 ng/L) were also detected; they have no federal or state limit. Reverse osmosis and filters certified to NSF/ANSI 53 for PFOA/PFOS reduce them at the tap.
Is there lead in Indian Trail's tap water?
Lead is not in Indian Trail's current published record. Lead usually enters from a building's own pipes and fixtures, so a certified home test is the way to know yours.
Has Indian Trail's water system had violations?
The federal SDWIS record lists a health-based violation for UNION COUNTY WATER SYSTEM within about the last ten years: E. coli (2020). The findings above show each one's status.
What does the latest Indian Trail water report show?
PurityMap's current record for Indian Trail holds 32 findings: 3 above a reference, 1 detected within the reference, 2 detected with no limit and 26 not detected. Each finding links to its dated public record; a parameter that was never monitored is shown as pending, not as a pass.
Follow this water
Follow Indian Trail's water
One email when a new sampling round is published, a result moves above or below its reference, or the system's score changes.
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Sources and dataAll 32 records and their sourcesEPA UCMR 5 · EPA SDWIS (Lead & Copper Rule) · EPA SDWIS violations
| Contaminant | Result | Benchmark | Status | Sampled | Source |
|---|---|---|---|---|---|
| Perfluorooctanesulfonic acid (PFOS) | 4.9 ng/L | 4.0 ng/L federal MCL (2024) | Above a historical reference; current applicability unverified | 2023-01-18 to 2023-10-04 | UCMR5 Analytical Results: UNION COUNTY WATER SYSTEM (NC0190413) |
| Perfluorooctanoic acid (PFOA) | 4.2 ng/L | 4.0 ng/L federal MCL (2024) | Above a historical reference; current applicability unverified | 2023-01-18 to 2023-10-04 | UCMR5 Analytical Results: UNION COUNTY WATER SYSTEM (NC0190413) |
| E. coli | = | Federal MCL | Above the listed reference | 2020 | EPA SDWIS Violations & Enforcement: UNION COUNTY WATER SYSTEM (NC0190413) |
| Perfluorohexanoic acid (PFHxA) | 7.4 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Within a historical reference; current applicability unverified | 2023-01-18 to 2023-10-04 | UCMR5 Analytical Results: UNION COUNTY WATER SYSTEM (NC0190413) |
| Perfluorobutanoic acid (PFBA) | 6.5 ng/L | No federal or state limit; shown for transparency | Detected, no limit | 2023-01-18 to 2023-10-04 | UCMR5 Analytical Results: UNION COUNTY WATER SYSTEM (NC0190413) |
| Perfluoropentanoic acid (PFPeA) | 10 ng/L | No federal or state limit; shown for transparency | Detected, no limit | 2023-01-18 to 2023-10-04 | UCMR5 Analytical Results: UNION COUNTY WATER SYSTEM (NC0190413) |
26 other contaminants tested — none detected
| Contaminant | Result | Benchmark | Status | Sampled | Source |
|---|---|---|---|---|---|
| 11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-18 to 2023-10-04 | UCMR5 Analytical Results: UNION COUNTY WATER SYSTEM (NC0190413) |
| 1H, 1H, 2H, 2H-perfluorodecane sulfonic acid (8:2 FTS) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-18 to 2023-10-04 | UCMR5 Analytical Results: UNION COUNTY WATER SYSTEM (NC0190413) |
| 1H, 1H, 2H, 2H-perfluorohexane sulfonic acid (4:2 FTS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-18 to 2023-10-04 | UCMR5 Analytical Results: UNION COUNTY WATER SYSTEM (NC0190413) |
| 1H, 1H, 2H, 2H-perfluorooctane sulfonic acid (6:2 FTS) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-18 to 2023-10-04 | UCMR5 Analytical Results: UNION COUNTY WATER SYSTEM (NC0190413) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-18 to 2023-10-04 | UCMR5 Analytical Results: UNION COUNTY WATER SYSTEM (NC0190413) |
| 9-Chlorohexadecafluoro-3-oxanone-1-sulfonic acid (9Cl-PF3ONS) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-18 to 2023-10-04 | UCMR5 Analytical Results: UNION COUNTY WATER SYSTEM (NC0190413) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-01-18 to 2023-10-04 | UCMR5 Analytical Results: UNION COUNTY WATER SYSTEM (NC0190413) |
| Lead (90th percentile) | Non-Detect (ND) | 15 µg/L federal action level | Not detected above the reporting limit | 2025–2025 monitoring period | Lead & Copper Rule 90th-percentile: UNION COUNTY WATER SYSTEM (NC0190413) |
| Lithium | < 9 µg/L | 10 µg/L EPA health reference level (screening, not a legal limit)Screening level, not a legal limit | Not detected above the reporting limit | 2023-01-18 to 2023-10-04 | UCMR5 Analytical Results: UNION COUNTY WATER SYSTEM (NC0190413) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-18 to 2023-10-04 | UCMR5 Analytical Results: UNION COUNTY WATER SYSTEM (NC0190413) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-18 to 2023-10-04 | UCMR5 Analytical Results: UNION COUNTY WATER SYSTEM (NC0190413) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-18 to 2023-10-04 | UCMR5 Analytical Results: UNION COUNTY WATER SYSTEM (NC0190413) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-18 to 2023-10-04 | UCMR5 Analytical Results: UNION COUNTY WATER SYSTEM (NC0190413) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-18 to 2023-10-04 | UCMR5 Analytical Results: UNION COUNTY WATER SYSTEM (NC0190413) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-18 to 2023-10-04 | UCMR5 Analytical Results: UNION COUNTY WATER SYSTEM (NC0190413) |
| Perfluorobutanesulfonic acid (PFBS) | < 3 ng/L | 2,000 ng/L EPA health advisory (screening, not a legal limit)Screening level, not a legal limit | Not detected above the reporting limit | 2023-01-18 to 2023-10-04 | UCMR5 Analytical Results: UNION COUNTY WATER SYSTEM (NC0190413) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-18 to 2023-10-04 | UCMR5 Analytical Results: UNION COUNTY WATER SYSTEM (NC0190413) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-18 to 2023-10-04 | UCMR5 Analytical Results: UNION COUNTY WATER SYSTEM (NC0190413) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-18 to 2023-10-04 | UCMR5 Analytical Results: UNION COUNTY WATER SYSTEM (NC0190413) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-18 to 2023-10-04 | UCMR5 Analytical Results: UNION COUNTY WATER SYSTEM (NC0190413) |
| Perfluorohexanesulfonic acid (PFHxS) | < 3 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-01-18 to 2023-10-04 | UCMR5 Analytical Results: UNION COUNTY WATER SYSTEM (NC0190413) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-01-18 to 2023-10-04 | UCMR5 Analytical Results: UNION COUNTY WATER SYSTEM (NC0190413) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-18 to 2023-10-04 | UCMR5 Analytical Results: UNION COUNTY WATER SYSTEM (NC0190413) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-18 to 2023-10-04 | UCMR5 Analytical Results: UNION COUNTY WATER SYSTEM (NC0190413) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-18 to 2023-10-04 | UCMR5 Analytical Results: UNION COUNTY WATER SYSTEM (NC0190413) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-18 to 2023-10-04 | UCMR5 Analytical Results: UNION COUNTY WATER SYSTEM (NC0190413) |
Perfluorooctanesulfonic acid (PFOS)
- Result
- 4.9 ng/L
- Benchmark
- 4.0 ng/L federal MCL (2024)
- Status
- Above a historical reference; current applicability unverified
- Sampled
- 2023-01-18 to 2023-10-04
- Result
- 4.2 ng/L
- Benchmark
- 4.0 ng/L federal MCL (2024)
- Status
- Above a historical reference; current applicability unverified
- Sampled
- 2023-01-18 to 2023-10-04
- Result
- =
- Benchmark
- Federal MCL
- Status
- Above the listed reference
- Sampled
- 2020
Perfluorohexanoic acid (PFHxA)
- Result
- 7.4 ng/L
- Benchmark
- 400,000 ng/L Michigan EGLE state MCL (strictest US state)
- Status
- Within a historical reference; current applicability unverified
- Sampled
- 2023-01-18 to 2023-10-04
- Result
- 6.5 ng/L
- Benchmark
- No federal or state limit; shown for transparency
- Status
- Detected, no limit
- Sampled
- 2023-01-18 to 2023-10-04
Perfluoropentanoic acid (PFPeA)
- Result
- 10 ng/L
- Benchmark
- No federal or state limit; shown for transparency
- Status
- Detected, no limit
- Sampled
- 2023-01-18 to 2023-10-04
26 other contaminants tested — none detected
11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS)
- Result
- < 5 ng/L
- Benchmark
- No federal or state limit; shown for transparency
- Status
- Not detected above the reporting limit
- Sampled
- 2023-01-18 to 2023-10-04
1H, 1H, 2H, 2H-perfluorodecane sulfonic acid (8:2 FTS)
- Result
- < 5 ng/L
- Benchmark
- No federal or state limit; shown for transparency
- Status
- Not detected above the reporting limit
- Sampled
- 2023-01-18 to 2023-10-04
1H, 1H, 2H, 2H-perfluorohexane sulfonic acid (4:2 FTS)
- Result
- < 3 ng/L
- Benchmark
- No federal or state limit; shown for transparency
- Status
- Not detected above the reporting limit
- Sampled
- 2023-01-18 to 2023-10-04
1H, 1H, 2H, 2H-perfluorooctane sulfonic acid (6:2 FTS)
- Result
- < 5 ng/L
- Benchmark
- No federal or state limit; shown for transparency
- Status
- Not detected above the reporting limit
- Sampled
- 2023-01-18 to 2023-10-04
4,8-Dioxa-3H-perfluorononanoic acid (ADONA)
- Result
- < 3 ng/L
- Benchmark
- No federal or state limit; shown for transparency
- Status
- Not detected above the reporting limit
- Sampled
- 2023-01-18 to 2023-10-04
9-Chlorohexadecafluoro-3-oxanone-1-sulfonic acid (9Cl-PF3ONS)
- Result
- < 2 ng/L
- Benchmark
- No federal or state limit; shown for transparency
- Status
- Not detected above the reporting limit
- Sampled
- 2023-01-18 to 2023-10-04
Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals)
- Result
- < 5 ng/L
- Benchmark
- 10 ng/L federal MCL (2024)
- Status
- Not detected above the reporting limit
- Sampled
- 2023-01-18 to 2023-10-04
- Result
- Non-Detect (ND)
- Benchmark
- 15 µg/L federal action level
- Status
- Not detected above the reporting limit
- Sampled
- 2025–2025 monitoring period
- Result
- < 9 µg/L
- Benchmark
- 10 µg/L EPA health reference level (screening, not a legal limit)Screening level, not a legal limit
- Status
- Not detected above the reporting limit
- Sampled
- 2023-01-18 to 2023-10-04
N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA)
- Result
- < 5 ng/L
- Benchmark
- No federal or state limit; shown for transparency
- Status
- Not detected above the reporting limit
- Sampled
- 2023-01-18 to 2023-10-04
N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA)
- Result
- < 6 ng/L
- Benchmark
- No federal or state limit; shown for transparency
- Status
- Not detected above the reporting limit
- Sampled
- 2023-01-18 to 2023-10-04
Nonafluoro-3,6-dioxaheptanoic acid (NFDHA)
- Result
- < 20 ng/L
- Benchmark
- No federal or state limit; shown for transparency
- Status
- Not detected above the reporting limit
- Sampled
- 2023-01-18 to 2023-10-04
Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA)
- Result
- < 3 ng/L
- Benchmark
- No federal or state limit; shown for transparency
- Status
- Not detected above the reporting limit
- Sampled
- 2023-01-18 to 2023-10-04
Perfluoro-3-methoxypropanoic acid (PFMPA)
- Result
- < 4 ng/L
- Benchmark
- No federal or state limit; shown for transparency
- Status
- Not detected above the reporting limit
- Sampled
- 2023-01-18 to 2023-10-04
Perfluoro-4-methoxybutanoic acid (PFMBA)
- Result
- < 3 ng/L
- Benchmark
- No federal or state limit; shown for transparency
- Status
- Not detected above the reporting limit
- Sampled
- 2023-01-18 to 2023-10-04
Perfluorobutanesulfonic acid (PFBS)
- Result
- < 3 ng/L
- Benchmark
- 2,000 ng/L EPA health advisory (screening, not a legal limit)Screening level, not a legal limit
- Status
- Not detected above the reporting limit
- Sampled
- 2023-01-18 to 2023-10-04
- Result
- < 3 ng/L
- Benchmark
- No federal or state limit; shown for transparency
- Status
- Not detected above the reporting limit
- Sampled
- 2023-01-18 to 2023-10-04
Perfluorododecanoic acid (PFDoA)
- Result
- < 3 ng/L
- Benchmark
- No federal or state limit; shown for transparency
- Status
- Not detected above the reporting limit
- Sampled
- 2023-01-18 to 2023-10-04
Perfluoroheptanesulfonic acid (PFHpS)
- Result
- < 3 ng/L
- Benchmark
- No federal or state limit; shown for transparency
- Status
- Not detected above the reporting limit
- Sampled
- 2023-01-18 to 2023-10-04
Perfluoroheptanoic acid (PFHpA)
- Result
- < 3 ng/L
- Benchmark
- No federal or state limit; shown for transparency
- Status
- Not detected above the reporting limit
- Sampled
- 2023-01-18 to 2023-10-04
Perfluorohexanesulfonic acid (PFHxS)
- Result
- < 3 ng/L
- Benchmark
- 10 ng/L federal MCL (2024)
- Status
- Not detected above the reporting limit
- Sampled
- 2023-01-18 to 2023-10-04
- Result
- < 4 ng/L
- Benchmark
- 10 ng/L federal MCL (2024)
- Status
- Not detected above the reporting limit
- Sampled
- 2023-01-18 to 2023-10-04
Perfluoropentanesulfonic acid (PFPeS)
- Result
- < 4 ng/L
- Benchmark
- No federal or state limit; shown for transparency
- Status
- Not detected above the reporting limit
- Sampled
- 2023-01-18 to 2023-10-04
Perfluorotetradecanoic acid (PFTA)
- Result
- < 8 ng/L
- Benchmark
- No federal or state limit; shown for transparency
- Status
- Not detected above the reporting limit
- Sampled
- 2023-01-18 to 2023-10-04
Perfluorotridecanoic acid (PFTrDA)
- Result
- < 7 ng/L
- Benchmark
- No federal or state limit; shown for transparency
- Status
- Not detected above the reporting limit
- Sampled
- 2023-01-18 to 2023-10-04
Perfluoroundecanoic acid (PFUnA)
- Result
- < 2 ng/L
- Benchmark
- No federal or state limit; shown for transparency
- Status
- Not detected above the reporting limit
- Sampled
- 2023-01-18 to 2023-10-04
Every value is the published result from the cited public record. A reporting limit is the lowest level the method could reliably quantify; a non-detect is not a guarantee of zero.
UCMR5 Analytical Results
UCMR5 Analytical Results: UNION COUNTY WATER SYSTEM (NC0190413)
US EPA
State SDWIS Compliance Record
Lead & Copper Rule 90th-percentile: UNION COUNTY WATER SYSTEM (NC0190413)
US EPA SDWIS
State SDWIS Compliance Record
EPA SDWIS Violations & Enforcement: UNION COUNTY WATER SYSTEM (NC0190413)
US EPA SDWIS
Methodology: how we analyze water. Prepared with AI assistance and reviewed by the PurityMap Editorial Team before publication.
Something off with your water's smell, color or taste?
Start with the hot-or-cold tap check. Where Union County Water System reported something related, it's shown below.
- Rotten-egg smell
- Cloudy or milky water
- Chlorine smell
- Brown or yellow water
- Metallic taste
Lead at Union County Water System: not detected (90th percentile, 2025 monitoring period). Lead has no taste, so a taste neither shows nor rules it out.
ZIP codes in Indian Trail
A ZIP code is a postal area, not a water service area. Your water bill names your supplier.