Short answer: In the 2023–2025 records we hold for Robeson County, three PFAS, HFPO-DA (GenX), PFOA and PFOS, each had a sample above a 2024 EPA limit (not a violation: the limits are judged on a yearly average, due 2029), and a health-based violation is on record (EPA SDWIS). Also worth knowing: lithium sits above a screening level. 11 substances were detected and 20 were tested and not detected. The water is from Robeson County Water System, serving 67,970 residents.
Plumbing inside the building is outside this record.
At a glance
Robeson County water in four numbers
56/100 · FairConfidence: moderatePurity ScoreROBESON COUNTY WATER SYSTEM · PWSID NC0378055
12Detected5 above a reference
5Above a referenceof 32 records
1Health-based violationslast 10 years · EPA SDWIS
Three PFAS, HFPO-DA (GenX), PFOA and PFOS, each had a sample above a 2024 EPA limit (not a violation: the limits are judged on a yearly average, due 2029); lithium sits above a screening level, and a past health-based violation (Combined radium-226/228) is on record.
What we found
12 detected results, by distance from their limit
Each bar runs to the named reference; the tick marks it. Open a row for five layers: measured, compared, meaning, where it matters, what to do.
PFOAPerfluorooctanoic acid (PFOA)Above EPA's 2024 limit (one sample) · Federal MCL4.0 ng/L federal MCL (2024)30ng/L▾
① · Measured
30 ng/L, sampled 2023-02-14 to 2023-07-25. EPA UCMR 5.
② · Compared
4.0 ng/L federal MCL (2024): a legal limit. That limit is judged on a yearly average, and water systems have until 2029 to meet it, so a single sample is not a violation. EPA health goal (MCLG): 0.
③ · Meaning
One EPA sample measured 30 ng/L, above the 4 ng/L limit EPA set in 2024. That limit is judged on a yearly average, and water systems have until 2029 to meet it, so a single sample is not a violation.
④ · Where it matters
Comes with the source water; home plumbing does not add it.
⑤ · What to do
Test your own tap first. To reduce it: Reverse osmosis, or carbon certified for PFAS (NSF/ANSI 53 or 58 (PFOA/PFOS)).
HFPO-DA (GenX)Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals)Above EPA's 2024 limit (one sample) · Federal MCL10 ng/L federal MCL (2024)34ng/L▾
① · Measured
34 ng/L, sampled 2023-02-14 to 2023-07-25. EPA UCMR 5.
② · Compared
10 ng/L federal MCL (2024): a legal limit. That limit is judged on a yearly average, and water systems have until 2029 to meet it, so a single sample is not a violation. EPA health goal (MCLG): 10 ng/L.
③ · Meaning
One EPA sample measured 34 ng/L, above the 10 ng/L limit EPA set in 2024. That limit is judged on a yearly average, and water systems have until 2029 to meet it, so a single sample is not a violation.
④ · Where it matters
Comes with the source water; home plumbing does not add it.
⑤ · What to do
Test your own tap first. To reduce it: Reverse osmosis, or carbon certified for PFAS (NSF/ANSI 53 or 58, with HFPO-DA (GenX) named on the listing).
PFOSPerfluorooctanesulfonic acid (PFOS)Above EPA's 2024 limit (one sample) · Federal MCL4.0 ng/L federal MCL (2024)6.1ng/L▾
① · Measured
6.1 ng/L, sampled 2023-02-14 to 2023-07-25. EPA UCMR 5.
② · Compared
4.0 ng/L federal MCL (2024): a legal limit. That limit is judged on a yearly average, and water systems have until 2029 to meet it, so a single sample is not a violation. EPA health goal (MCLG): 0.
③ · Meaning
One EPA sample measured 6.1 ng/L, above the 4 ng/L limit EPA set in 2024. That limit is judged on a yearly average, and water systems have until 2029 to meet it, so a single sample is not a violation.
④ · Where it matters
Comes with the source water; home plumbing does not add it.
⑤ · What to do
Test your own tap first. To reduce it: Reverse osmosis, or carbon certified for PFAS (NSF/ANSI 53 or 58 (PFOA/PFOS)).
PFHxSPerfluorohexanesulfonic acid (PFHxS)Within reference · Federal MCL10 ng/L federal MCL (2024)8.4ng/L▾
① · Measured
8.4 ng/L, sampled 2023-02-14 to 2023-07-25. EPA UCMR 5.
② · Compared
10 ng/L federal MCL (2024): a legal limit. That limit is judged on a yearly average, and water systems have until 2029 to meet it.
③ · Meaning
Detected at up to 8.4 ng/L (below the 10 ng/L limit EPA set in 2024). That limit is judged on a yearly average, and water systems have until 2029 to meet it.
④ · Where it matters
Comes with the source water; home plumbing does not add it.
⑤ · What to do
Test your own tap first. To reduce it: Reverse osmosis, or carbon certified for PFAS (NSF/ANSI 53 or 58, with PFHxS named on the listing).
ROBESON COUNTY WATER SYSTEM (EPA PWSID NC0378055) delivers groundwater to 67,970 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.
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.
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.
The record describes water leaving treatment and samples across the system. Pipes, solder and fixtures inside a building can add lead the record can’t see, especially in older buildings with lead service lines.
Filters for the PFAS found in Robeson County water
Affiliate linksPurityMap earns a commission from these links. "Best choice" and "Budget pick" go to certified products first; commission never decides them. As an Amazon Associate, PurityMap earns from qualifying purchases. Affiliate disclosure
★ Best choice: Aquasana Claryum 2-Stage Under-Sink Filter (AQ-5200), certified for PFOA and PFOS.
Filters for the PFAS found in Robeson County water
Reverse osmosisiSpring RCC7AK Alkaline Reverse Osmosis SystemiSpring · It treats only the water from its own faucet and sends part of the water to the drain; the NSF listing for the plain RCC7AK covers dissolved solids, not lead or PFAS.Use code REFISPRING at checkout: 10% off your first iSpring order.
Reverse osmosisiSpring RO5004F Tankless Reverse Osmosis System with UViSpring · Its PFAS and lead reduction claims are iSpring's own, with no third-party certification named for this model, and it treats only the water at its own faucet.Use code REFISPRING at checkout: 10% off your first iSpring order.
Reverse osmosisWaterdrop X12 Reverse Osmosis SystemWaterdrop · Its IAPMO NSF/ANSI 58 certification covers TDS reduction only, so its PFAS and lead claims rest on Waterdrop's own SGS lab testing.
Why it’s listed: its current certification names PFOA, PFOS, PFHxS and Perfluoroheptanoic acid (PFHpA), found in Robeson County’s record.See the evidence
Whole-houseiSpring WGB32B-PFKS PFAS & Heavy Metals Whole House FilteriSpring · It does not reduce total dissolved solids or soften hard water, and its PFAS result comes from SGS lab testing rather than an NSF/ANSI certification.Use code REFISPRING at checkout: 10% off your first iSpring order.
PurityMap earns a commission from these links. "Best choice" and "Budget pick" go to certified products first; commission never decides them. As an Amazon Associate, PurityMap earns from qualifying purchases. Affiliate disclosure.
Is this right for my home?
Choose your situation
Your path: I live in an older buildingLead from plumbing is the main question
Older buildings may have lead service lines, solder or fixtures. Robeson County’s utility reported 20,926 service lines of unknown material in EPA’s inventory, so only a tap test tells you. Test first-draw water, then filter if needed.
10 of 29 PFAS tested were detected in Robeson County’s record (PFOA 30 ng/L, HFPO-DA (GenX) 34 ng/L and PFOS 6.1 ng/L, and more); 3 above their limit. If PFAS matters to you, a filter certification names each compound it covers.
Look forNSF/ANSI 53 or 58, with each compound you care about named on the listing
Your path: My water tastes of chlorineThe disinfectant is not in this record
Most utilities keep chlorine or chloramine in the pipes. A carbon filter certified for taste and odor reduces either; your utility can tell you which it uses.
PurityMap does not give a safe/unsafe verdict; it shows what the public records measured. For Robeson County, PFOA 30 ng/L (limit 4 ng/L), HFPO-DA (GenX) 34 ng/L (limit 10 ng/L) and PFOS 6.1 ng/L (limit 4 ng/L) were measured in one EPA sample each, above the limits EPA set in 2024 (not a violation: the limits are judged on a yearly average, due 2029); one health-based violation is on record (Combined radium-226/228). ROBESON COUNTY WATER SYSTEM (PWSID NC0378055) has a Purity Score of 56/100 (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. What we found →
Who provides tap water in Robeson County?+
ROBESON COUNTY WATER SYSTEM (PWS ID NC0378055) is the public water system on record for Robeson County, North Carolina, serving about 67,970 people. Confirm the utility on your water bill before acting on a specific finding. Water utility →
Where does Robeson County get its drinking water?+
Groundwater (primary source of record in EPA SDWIS). Water utility →
Are PFAS "forever chemicals" in Robeson County's water?+
Yes. In EPA's UCMR 5 testing (2023-02-14 to 2023-07-25), PFOA was measured at 30 ng/L in one EPA sample, above the 4 ng/L limit EPA set in 2024, HFPO-DA (GenX) was measured at 34 ng/L in one EPA sample, above the 10 ng/L limit EPA set in 2024 and PFOS was measured at 6.1 ng/L in one EPA sample, above the 4 ng/L limit EPA set in 2024. EPA's 2024 limits are judged on a yearly average, and water systems have until 2029 to meet them, so a single sample is not a violation. PFBS (8.5 ng/L, below the 2,000 ng/L EPA health advisory), PFHxA (25 ng/L, below the 400,000 ng/L state limit) and PFHxS (8.4 ng/L, below the 10 ng/L federal limit) were also detected. PFBA (11 ng/L), PFHpA (16 ng/L), PFPeA (29 ng/L) and PFPeS (4.7 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. What we found →
Is there lead in Robeson County's tap water?+
Lead is not in Robeson County'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. Your household →
Has Robeson County's water system had violations?+
The federal SDWIS record lists a health-based violation for ROBESON COUNTY WATER SYSTEM within about the last ten years: Combined radium-226/228 (2019). The findings above show each one's status. At a glance →
What does the latest Robeson County water report show?+
PurityMap's current record for Robeson County holds 32 findings: 5 above a reference, 3 detected within the reference, 4 detected with no limit and 20 not detected. Each finding links to its dated public record; a parameter that was never monitored is shown as pending, not as a pass. Records →
EPA SDWIS, EPA UCMR 5 and utility reports, each dated and linked.
02Normalize
Units converted to one basis; a non-detect kept distinct from zero.
03Classify
Each result tagged by reference type: MCL, action level, screening level or aesthetic.
04Compare to the named reference
Every value sits against its own reference, never a blended one.
05Score
Measured subjects summarised at the water-system level; an open health-based violation caps the score.
06Match treatment
Treatment is matched to what was found; a product is called certified only when its current certification names it.
What the Purity Score means: a summary of this water system’s published record, capped while a health-based violation is open. It is not a test of any tap. ROBESON COUNTY WATER SYSTEM · PWSID NC0378055 · Purity Score 56/100 (Fair) · Confidence: moderate · Assessed at the water-system level
Lead at Robeson County Water System: not detected (90th percentile, 2023–2025 monitoring period). Lead has no taste, so a taste neither shows nor rules it out.