SHARYLAND WSClikely match
City water report · 2026

Is Alton 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); lithium sits above a screening level, and a past health-based violation (Chlorite) is on record. Sharyland WSC serves 68,562 residents.

Likely match, check your bill

SHARYLAND WSC serves Alton

Your water bill or annual water quality report names your actual supplier.

Source
Surface water
Lead service lines
0 lead
  • SHARYLAND WSCThis report
    TX1080033 · 68,562 served

Also supplies: La Homa, Palmhurst

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.

PFOS

Perfluorooctanesulfonic acid

1.7× the limit

6.8ng/L

Each block = 4.0 ng/L federal MCL (2024)

EPA UCMR 5 · sampled 2024Evidence
PFOA

Perfluorooctanoic acid

1.1× the limit

4.3ng/L

Each block = 4.0 ng/L federal MCL (2024)

EPA UCMR 5 · sampled 2024Evidence

Coverage by group

32 results on record
  • PFAS (forever chemicals)2 above · 6 detected · 21 not detected
  • Metals & lead1 detected
  • Disinfection by-products1 above
  • Other1 above
Every detected result

11 detected results, by distance from their limit

SHARYLAND WSC (EPA PWSID TX1080033) delivers surface water to 68,562 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.

21 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
  • PFDA
  • PFDoA
  • PFEESA
  • PFHpS
  • PFMBA
  • PFMPA
  • PFNA
  • PFPeS
  • PFTA
  • PFTrDA
  • PFUnA
Track record

1health-based violation in the last 10 years

From EPA SDWIS. Counted once per contaminant per year, as in the Track record score.

Health-based violations, last 10 years

Every filing is listed; the Track record score counts at most one per contaminant per year.

Filings 2010–2019
  • Chlorite

Resolved

  1. ChloriteMCL

    to Resolved

    EPA status: ResolvedSDWIS ID 136

Test your own tap

Screening tells you if something is worth a closer look; a lab result is the number you can act on.

As an Amazon Associate, PurityMap earns from qualifying purchases. Affiliate disclosure.

  • Screening: quick check, not lab-grade

    Safe Home DIY Lead in Drinking Water Combo Test Kit

    Safe Home (EnviroTestKits)

    Lead, read as one of three ranges: 0–4, 5–15 or 15+ ppb

    • Turnaround: 5 minutes

    What it can't tell you: It shows a lead range, not an exact level, and tests nothing else unless you pay extra for the optional lab test.

  • Lab-certified results

    ETR Labs Basic Water Quality Test Kit

    ETR Laboratories

    50+ substances, including lead, copper, arsenic, nitrate, hardness and coliform bacteria

    What it can't tell you: It does not test PFAS, and not every result on the panel falls under the lab's accredited scope.

When your results arrive, read them here →

Commercial

Certified for a concern found here

Each card names which Alton 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
  • Lead: eligible, evidence match
  • Not established: Lithium, Perfluorobutanesulfonic acid (PFBS), Perfluorohexanoic acid (PFHxA) and 4 more
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
  • Lead: eligible, evidence match
  • Not established: Lithium, Perfluorobutanesulfonic acid (PFBS), Perfluorohexanoic acid (PFHxA) and 4 more
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 13 products certified for a Alton concern →
Countertop System

Aquasana Clean Water Machine Countertop Filter (AQ-CWM2)

  • PFOA: eligible, evidence match
  • PFOS: eligible, evidence match
  • Lead: eligible, evidence match
  • Not established: Lithium, Perfluorobutanesulfonic acid (PFBS), Perfluorohexanoic acid (PFHxA) and 4 more
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
  • Lead: eligible, evidence match
  • Not established: Lithium, Perfluorobutanesulfonic acid (PFBS), Perfluorohexanoic acid (PFHxA) and 4 more
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
  • Lead: eligible, evidence match
  • Not established: Lithium, Perfluorobutanesulfonic acid (PFBS), Perfluorohexanoic acid (PFHxA) and 4 more
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
  • Lead: eligible, evidence match
  • Not established: Lithium, Perfluorobutanesulfonic acid (PFBS), Perfluorohexanoic acid (PFHxA) and 4 more
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
  • Lead: eligible, evidence match
  • Not established: Lithium, Perfluorobutanesulfonic acid (PFBS), Perfluorohexanoic acid (PFHxA) and 4 more
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
  • Lead: eligible, evidence match
  • Not established: Lithium, Perfluorobutanesulfonic acid (PFBS), Perfluorohexanoic acid (PFHxA) and 4 more
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
  • Lead: eligible, evidence match
  • Not established: Lithium, Perfluorobutanesulfonic acid (PFBS), Perfluorohexanoic acid (PFHxA) and 4 more
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
Water Pitcher

Brita Elite Water Filter Pitcher

  • Lead: eligible, evidence match
  • Not established: PFOA, PFOS, Lithium and 6 more
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
Water Pitcher

Culligan ZeroWater 10-Cup Pitcher (ZEROP10)

  • Lead: eligible, evidence match
  • Not established: PFOA, PFOS, Lithium and 6 more
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
Faucet Attachment

PUR Plus Faucet Filter (FM2500V)

  • Lead: eligible, evidence match
  • Not established: PFOA, PFOS, Lithium and 6 more
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

Frizzlife SP99 Under-Sink Filter

  • Lead: eligible, evidence match
  • Not established: PFOA, PFOS, Lithium and 6 more
Not suitable for (4)
  • 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
Questions

Frequently asked questions

Is Alton tap water safe to drink?

PurityMap does not give a safe/unsafe verdict; it shows what the public records measured. For Alton, PFOS 6.8 ng/L and PFOA 4.3 ng/L were measured above the 4 ng/L federal limit in EPA's 2024 testing; the lead 90th-percentile result was 1 µg/L against the 15 µg/L action level; one health-based violation is on record (Chlorite). SHARYLAND WSC (PWSID TX1080033) has a Purity Score of 61/100 (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 Alton?

SHARYLAND WSC (PWS ID TX1080033) is the public water system on record for Alton, Texas, serving about 68,562 people. Confirm the utility on your water bill before acting on a specific finding.

Where does Alton get its drinking water?

Surface water (primary source of record in EPA SDWIS).

Are PFAS "forever chemicals" in Alton's water?

Yes. In EPA's UCMR 5 testing (2024-07-23 to 2025-04-23), PFOS was measured at 6.8 ng/L against a 4 ng/L federal limit and PFOA was measured at 4.3 ng/L against a 4 ng/L federal limit. PFBS (3 ng/L, below the 2,000 ng/L EPA health advisory), PFHxA (12.5 ng/L, below the 400,000 ng/L state limit) and PFHxS (6.4 ng/L, below the 10 ng/L federal limit) were also detected. PFBA (11.7 ng/L), PFHpA (4.5 ng/L) and PFPeA (12.3 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 Alton's tap water?

SHARYLAND WSC's most recent lead 90th-percentile result (2024) was 1 µg/L, below the 15 µg/L action level. That figure comes from sampled homes; lead usually enters from a building's own pipes and fixtures, so only a test at your tap tells you what you drink.

Has Alton's water system had violations?

The federal SDWIS record lists a health-based violation for SHARYLAND WSC within about the last ten years: Chlorite (2019). The findings above show each one's status.

What does the latest Alton water report show?

PurityMap's current record for Alton holds 32 findings: 4 above a reference, 4 detected within the reference, 3 detected with no limit and 21 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 Alton's water

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Sources and dataAll 32 records and their sourcesEPA UCMR 5 · EPA SDWIS (Lead & Copper Rule) · EPA SDWIS violations
ContaminantResultBenchmarkStatusSampledSource
Lithium41.3 µg/L10 µg/L EPA health reference level (screening, not a legal limit)Screening level, not a legal limitAbove the referenced health-based guidance value2024-07-23 to 2025-04-23UCMR5 Analytical Results: SHARYLAND WSC (TX1080033)
Perfluorooctanesulfonic acid (PFOS)6.8 ng/L4.0 ng/L federal MCL (2024)Above a historical reference; current applicability unverified2024-07-23 to 2025-04-23UCMR5 Analytical Results: SHARYLAND WSC (TX1080033)
Chlorite1.4 MG/L1.0 mg/LAbove the listed reference2019EPA SDWIS Violations & Enforcement: SHARYLAND WSC (TX1080033)
Perfluorooctanoic acid (PFOA)4.3 ng/L4.0 ng/L federal MCL (2024)Above a historical reference; current applicability unverified2024-07-23 to 2025-04-23UCMR5 Analytical Results: SHARYLAND WSC (TX1080033)
Perfluorohexanesulfonic acid (PFHxS)6.4 ng/L10 ng/L federal MCL (2024)Within a historical reference; current applicability unverified2024-07-23 to 2025-04-23UCMR5 Analytical Results: SHARYLAND WSC (TX1080033)
Lead (90th percentile)1 µg/L15 µg/L federal action levelBelow the listed reference2024–2024 monitoring periodLead & Copper Rule 90th-percentile: SHARYLAND WSC (TX1080033)
Perfluorobutanesulfonic acid (PFBS)3 ng/L2,000 ng/L EPA health advisory (screening, not a legal limit)Screening level, not a legal limitWithin the referenced health-based guidance value2024-07-23 to 2025-04-23UCMR5 Analytical Results: SHARYLAND WSC (TX1080033)
Perfluorohexanoic acid (PFHxA)12.5 ng/L400,000 ng/L Michigan EGLE state MCL (strictest US state)Within a historical reference; current applicability unverified2024-07-23 to 2025-04-23UCMR5 Analytical Results: SHARYLAND WSC (TX1080033)
Perfluorobutanoic acid (PFBA)11.7 ng/LNo federal or state limit; shown for transparencyDetected, no limit2024-07-23 to 2025-04-23UCMR5 Analytical Results: SHARYLAND WSC (TX1080033)
Perfluoroheptanoic acid (PFHpA)4.5 ng/LNo federal or state limit; shown for transparencyDetected, no limit2024-07-23 to 2025-04-23UCMR5 Analytical Results: SHARYLAND WSC (TX1080033)
Perfluoropentanoic acid (PFPeA)12.3 ng/LNo federal or state limit; shown for transparencyDetected, no limit2024-07-23 to 2025-04-23UCMR5 Analytical Results: SHARYLAND WSC (TX1080033)
21 other PFAS tested — none detected
ContaminantResultBenchmarkStatusSampledSource
11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS)< 5 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-07-23 to 2025-04-23UCMR5 Analytical Results: SHARYLAND WSC (TX1080033)
1H, 1H, 2H, 2H-perfluorodecane sulfonic acid (8:2 FTS)< 5 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-07-23 to 2025-04-23UCMR5 Analytical Results: SHARYLAND WSC (TX1080033)
1H, 1H, 2H, 2H-perfluorohexane sulfonic acid (4:2 FTS)< 3 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-07-23 to 2025-04-23UCMR5 Analytical Results: SHARYLAND WSC (TX1080033)
1H, 1H, 2H, 2H-perfluorooctane sulfonic acid (6:2 FTS)< 5 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-07-23 to 2025-04-23UCMR5 Analytical Results: SHARYLAND WSC (TX1080033)
4,8-Dioxa-3H-perfluorononanoic acid (ADONA)< 3 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-07-23 to 2025-04-23UCMR5 Analytical Results: SHARYLAND WSC (TX1080033)
9-Chlorohexadecafluoro-3-oxanone-1-sulfonic acid (9Cl-PF3ONS)< 2 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-07-23 to 2025-04-23UCMR5 Analytical Results: SHARYLAND WSC (TX1080033)
Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals)< 5 ng/L10 ng/L federal MCL (2024)Not detected above the reporting limit2024-07-23 to 2025-04-23UCMR5 Analytical Results: SHARYLAND WSC (TX1080033)
N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA)< 5 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-07-23 to 2025-10-06UCMR5 Analytical Results: SHARYLAND WSC (TX1080033)
N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA)< 6 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-07-23 to 2025-10-06UCMR5 Analytical Results: SHARYLAND WSC (TX1080033)
Nonafluoro-3,6-dioxaheptanoic acid (NFDHA)< 20 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-07-23 to 2025-04-23UCMR5 Analytical Results: SHARYLAND WSC (TX1080033)
Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA)< 3 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-07-23 to 2025-04-23UCMR5 Analytical Results: SHARYLAND WSC (TX1080033)
Perfluoro-3-methoxypropanoic acid (PFMPA)< 4 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-07-23 to 2025-04-23UCMR5 Analytical Results: SHARYLAND WSC (TX1080033)
Perfluoro-4-methoxybutanoic acid (PFMBA)< 3 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-07-23 to 2025-04-23UCMR5 Analytical Results: SHARYLAND WSC (TX1080033)
Perfluorodecanoic acid (PFDA)< 3 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-07-23 to 2025-04-23UCMR5 Analytical Results: SHARYLAND WSC (TX1080033)
Perfluorododecanoic acid (PFDoA)< 3 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-07-23 to 2025-04-23UCMR5 Analytical Results: SHARYLAND WSC (TX1080033)
Perfluoroheptanesulfonic acid (PFHpS)< 3 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-07-23 to 2025-04-23UCMR5 Analytical Results: SHARYLAND WSC (TX1080033)
Perfluorononanoic acid (PFNA)< 4 ng/L10 ng/L federal MCL (2024)Not detected above the reporting limit2024-07-23 to 2025-04-23UCMR5 Analytical Results: SHARYLAND WSC (TX1080033)
Perfluoropentanesulfonic acid (PFPeS)< 4 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-07-23 to 2025-04-23UCMR5 Analytical Results: SHARYLAND WSC (TX1080033)
Perfluorotetradecanoic acid (PFTA)< 8 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-07-23 to 2025-10-06UCMR5 Analytical Results: SHARYLAND WSC (TX1080033)
Perfluorotridecanoic acid (PFTrDA)< 7 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-07-23 to 2025-10-06UCMR5 Analytical Results: SHARYLAND WSC (TX1080033)
Perfluoroundecanoic acid (PFUnA)< 2 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-07-23 to 2025-04-23UCMR5 Analytical Results: SHARYLAND WSC (TX1080033)

Lithium

Result
41.3 µg/L
Benchmark
10 µg/L EPA health reference level (screening, not a legal limit)Screening level, not a legal limit
Status
Above the referenced health-based guidance value
Sampled
2024-07-23 to 2025-04-23

Perfluorooctanesulfonic acid (PFOS)

Result
6.8 ng/L
Benchmark
4.0 ng/L federal MCL (2024)
Status
Above a historical reference; current applicability unverified
Sampled
2024-07-23 to 2025-04-23

Chlorite

Result
1.4 MG/L
Benchmark
1.0 mg/L
Status
Above the listed reference
Sampled
2019

Perfluorooctanoic acid (PFOA)

Result
4.3 ng/L
Benchmark
4.0 ng/L federal MCL (2024)
Status
Above a historical reference; current applicability unverified
Sampled
2024-07-23 to 2025-04-23

Perfluorohexanesulfonic acid (PFHxS)

Result
6.4 ng/L
Benchmark
10 ng/L federal MCL (2024)
Status
Within a historical reference; current applicability unverified
Sampled
2024-07-23 to 2025-04-23

Lead (90th percentile)

Result
1 µg/L
Benchmark
15 µg/L federal action level
Status
Below the listed reference
Sampled
2024–2024 monitoring period

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
Within the referenced health-based guidance value
Sampled
2024-07-23 to 2025-04-23

Perfluorohexanoic acid (PFHxA)

Result
12.5 ng/L
Benchmark
400,000 ng/L Michigan EGLE state MCL (strictest US state)
Status
Within a historical reference; current applicability unverified
Sampled
2024-07-23 to 2025-04-23

Perfluorobutanoic acid (PFBA)

Result
11.7 ng/L
Benchmark
No federal or state limit; shown for transparency
Status
Detected, no limit
Sampled
2024-07-23 to 2025-04-23

Perfluoroheptanoic acid (PFHpA)

Result
4.5 ng/L
Benchmark
No federal or state limit; shown for transparency
Status
Detected, no limit
Sampled
2024-07-23 to 2025-04-23

Perfluoropentanoic acid (PFPeA)

Result
12.3 ng/L
Benchmark
No federal or state limit; shown for transparency
Status
Detected, no limit
Sampled
2024-07-23 to 2025-04-23
21 other PFAS 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
2024-07-23 to 2025-04-23

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
2024-07-23 to 2025-04-23

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
2024-07-23 to 2025-04-23

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
2024-07-23 to 2025-04-23

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
2024-07-23 to 2025-04-23

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
2024-07-23 to 2025-04-23

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
2024-07-23 to 2025-04-23

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
2024-07-23 to 2025-10-06

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
2024-07-23 to 2025-10-06

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
2024-07-23 to 2025-04-23

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
2024-07-23 to 2025-04-23

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
2024-07-23 to 2025-04-23

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
2024-07-23 to 2025-04-23

Perfluorodecanoic acid (PFDA)

Result
< 3 ng/L
Benchmark
No federal or state limit; shown for transparency
Status
Not detected above the reporting limit
Sampled
2024-07-23 to 2025-04-23

Perfluorododecanoic acid (PFDoA)

Result
< 3 ng/L
Benchmark
No federal or state limit; shown for transparency
Status
Not detected above the reporting limit
Sampled
2024-07-23 to 2025-04-23

Perfluoroheptanesulfonic acid (PFHpS)

Result
< 3 ng/L
Benchmark
No federal or state limit; shown for transparency
Status
Not detected above the reporting limit
Sampled
2024-07-23 to 2025-04-23

Perfluorononanoic acid (PFNA)

Result
< 4 ng/L
Benchmark
10 ng/L federal MCL (2024)
Status
Not detected above the reporting limit
Sampled
2024-07-23 to 2025-04-23

Perfluoropentanesulfonic acid (PFPeS)

Result
< 4 ng/L
Benchmark
No federal or state limit; shown for transparency
Status
Not detected above the reporting limit
Sampled
2024-07-23 to 2025-04-23

Perfluorotetradecanoic acid (PFTA)

Result
< 8 ng/L
Benchmark
No federal or state limit; shown for transparency
Status
Not detected above the reporting limit
Sampled
2024-07-23 to 2025-10-06

Perfluorotridecanoic acid (PFTrDA)

Result
< 7 ng/L
Benchmark
No federal or state limit; shown for transparency
Status
Not detected above the reporting limit
Sampled
2024-07-23 to 2025-10-06

Perfluoroundecanoic acid (PFUnA)

Result
< 2 ng/L
Benchmark
No federal or state limit; shown for transparency
Status
Not detected above the reporting limit
Sampled
2024-07-23 to 2025-04-23

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: SHARYLAND WSC (TX1080033)

    US EPA

    Published
    2026-01-15
    Newest sample
    2025-10-06
    Findings here
    30
  • State SDWIS Compliance Record

    Lead & Copper Rule 90th-percentile: SHARYLAND WSC (TX1080033)

    US EPA SDWIS

    Published
    2026-07-09
    Newest sample
    2024
    Findings here
    1
  • State SDWIS Compliance Record

    EPA SDWIS Violations & Enforcement: SHARYLAND WSC (TX1080033)

    US EPA SDWIS

    Published
    2026-07-09
    Newest sample
    2019
    Findings here
    1

Methodology: how we analyze water. Prepared with AI assistance and reviewed by the PurityMap Editorial Team before publication.