Pcud-Pasco County Regional Pws

PFAS monitoring results for a public water system in Florida

FL6511361UCMR 5EPA monitoring data
<MRLHighest PFOA result, ppt
8.1Highest PFOS result, ppt
0.004Highest Hazard Index
960Results
PWSID
FL6511361
State
Florida
System type
community water system (CWS)
Population served
214,403
City
Land O' Lakes
Counties
Pasco County
Primary source water
surface water (purchased)
UCMR 5 sampling
2023-07-18 to 2024-05-13 · 8 entry point(s) · water types: MX
Service-area boundary
authoritative

PFOS 1–3 × its limit highest single result
PFOS 1–3 × its limit worst entry-point average

These are monitoring results collected under EPA's Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) at entry points, where treated water enters the distribution system; they are not tap-water samples. They are not compliance determinations: compliance with EPA's 2024 PFAS limits is judged on running annual averages of compliance monitoring, required from 2029, so a single UCMR 5 result at or above a limit is not a violation. “< MRL” means the compound was not quantified at EPA's minimum reporting level; it does not mean zero.

Water purchased from

Seller results are the seller's own entry-point samples, not measurements of this system's water. This system's own samples (below) may reflect purchased water, its own sources, or both.

Compared with EPA's 2024 values

Highest single resultWorst entry-point average*Limit
PFOA (ppt)<MRL04
PFOS (ppt)8.17.784
Hazard Index0.0040.0041.0†

“<MRL” = every result for the compound was below its reporting limit. * Mean of all samples at each entry point with non-detects = 0 (EPA compliance convention; the Hazard Index also uses non-detects = 0); a screening comparison, not a formal running annual average. † Rescission proposed May 2026. PFOA/PFOS MCL 4 ppt (2024 NPDWR, in effect). PFHxS, PFNA, HFPO-DA (10 ppt each) and the Hazard Index (1.0) are 2024 NPDWR values; EPA proposed rescinding them on 18 May 2026 (comment period closed 20 Jul 2026).

No Florida PFAS drinking-water standard in effect or proposed as of 2026-10-17: No state PFAS drinking-water MCL. Ch. 2022-203 Laws of Fla. (s. 376.91) concerns contaminated-site cleanup target levels, not drinking water.

Sampling history

Sampled 2023-07-18 to 2024-05-13 · 8 entry point(s) · water types: MX · 38 sampling visits. PFAS in ppt (ng/L).

DateEntry pointEventPFOAPFOSHIOther detections
2023-07-18Little Rd. WTP (MX)SE1<4<40PFHxA 3, PFPeA 3.8
2023-07-18Southwest WTP (MX)SE1<4<40PFHxA 3.7, PFPeA 4.8
2023-07-18TBW-US 41 (Cypress Creek) Intertie (MX)SE1<4<40PFHxA 3.6, PFPeA 4.7
2023-07-18Tampa Lakebridge Intertie (MX)SE1<44.40.002PFBA 5.3, PFHpA 3.8, PFHxA 8.1, PFPeA 10.4
2023-07-19Autumn Oaks WTP (MX)SE1<4<40none
2023-07-19Gowers Corner POE (MX)SE1<4<40none
2023-07-19One Pasco Center POE (MX)SE1<4<40none
2023-07-19Southeast WTP (MX)SE1<47.40.004none
2023-10-10Southwest WTP (MX)SE2<4<40PFHxA 3.2, PFPeA 4.4
2023-10-17Little Rd. WTP (MX)SE2<4<40PFPeA 3.8
2023-10-17TBW-US 41 (Cypress Creek) Intertie (MX)SE2<4<40PFPeA 3.6
2023-10-17Tampa Lakebridge Intertie (MX)SE2<4<40.002PFBA 5.7, PFHxA 5.3, PFPeA 7.4
2023-10-18Autumn Oaks WTP (MX)SE2<4<40none
2023-10-18Gowers Corner POE (MX)SE2<4<40none
2023-10-18One Pasco Center POE (MX)SE2<4<40none
2023-12-12Southeast WTP (MX)SE2<47.80.004none
2024-01-10Little Rd. WTP (MX)SE3<4<40PFHxA 3.1, PFPeA 4.1
2024-01-10Southwest WTP (MX)SE3<4<40PFHxA 4.1, PFPeA 5.4
2024-01-10TBW-US 41 (Cypress Creek) Intertie (MX)SE3<4<40PFHxA 3, PFPeA 3.8
2024-01-10Tampa Lakebridge Intertie (MX)SE3<44.20.002PFHxA 5.5, PFPeA 7.4
2024-01-11Autumn Oaks WTP (MX)SE3<4<40none
2024-01-11Gowers Corner POE (MX)SE3n/an/an/anone
2024-01-11One Pasco Center POE (MX)SE3n/an/an/anone
2024-01-11Southeast WTP (MX)SE3<47.80.004none
2024-01-31Gowers Corner POE (MX)SE3<4<40none
2024-02-28One Pasco Center POE (MX)SE3<4<40none
2024-04-16Little Rd. WTP (MX)SE4n/an/an/anone
2024-04-16Southwest WTP (MX)SE4n/an/an/anone
2024-04-16TBW-US 41 (Cypress Creek) Intertie (MX)SE4n/an/an/anone
2024-04-16Tampa Lakebridge Intertie (MX)SE4n/an/an/anone
2024-04-17Autumn Oaks WTP (MX)SE4<4<40none
2024-04-17Gowers Corner POE (MX)SE4<4<40none
2024-04-17One Pasco Center POE (MX)SE4<4<40none
2024-04-17Southeast WTP (MX)SE4<48.10.004none
2024-05-13Little Rd. WTP (MX)SE4<4<40none
2024-05-13Southwest WTP (MX)SE4<4<40none
2024-05-13TBW-US 41 (Cypress Creek) Intertie (MX)SE4<4<40none
2024-05-13Tampa Lakebridge Intertie (MX)SE4<4<40.002PFBA 6.7, PFHpA 3.3, PFHxA 6.2, PFPeA 8.4

“<4” = not detected at the reporting limit shown; “n/a” = not analyzed in that sample. Highlighted = at or above the 4 ppt MCL. HI computed per sample with non-detects as 0. Other detections lists every other quantified compound (lithium in µg/L).

All results by entry point

960 results. Each column is one sampling visit (date and UCMR 5 sample event). A number is a measured concentration; “< 4” = below the minimum reporting level shown; “–” = not analyzed in that visit. PFAS in ppt (ng/L); lithium in µg/L.

Autumn Oaks WTP facility 00002 · sample point 1361002 · MX

CompoundMRL2023-07-19
SE1
2023-10-18
SE2
2024-01-11
SE3
2024-04-17
SE4
11Cl-PF3OUdS5 ppt< 5< 5< 5< 5
4:2 FTS3 ppt< 3< 3< 3< 3
6:2 FTS5 ppt< 5< 5< 5< 5
8:2 FTS5 ppt< 5< 5< 5< 5
9Cl-PF3ONS2 ppt< 2< 2< 2< 2
ADONA3 ppt< 3< 3< 3< 3
HFPO-DA5 ppt< 5< 5< 5< 5
NEtFOSAA5 ppt< 5< 5< 5< 5
NFDHA20 ppt< 20< 20< 20< 20
NMeFOSAA6 ppt< 6< 6< 6< 6
PFBA5 ppt< 5< 5< 5< 5
PFBS3 ppt< 3< 3< 3< 3
PFDA3 ppt< 3< 3< 3< 3
PFDoA3 ppt< 3< 3< 3< 3
PFEESA3 ppt< 3< 3< 3< 3
PFHpA3 ppt< 3< 3< 3< 3
PFHpS3 ppt< 3< 3< 3< 3
PFHxA3 ppt< 3< 3< 3< 3
PFHxS3 ppt< 3< 3< 3< 3
PFMBA3 ppt< 3< 3< 3< 3
PFMPA4 ppt< 4< 4< 4< 4
PFNA4 ppt< 4< 4< 4< 4
PFOA4 ppt< 4< 4< 4< 4
PFOS4 ppt< 4< 4< 4< 4
PFPeA3 ppt< 3< 3< 3< 3
PFPeS4 ppt< 4< 4< 4< 4
PFTA8 ppt< 8< 8< 8< 8
PFTrDA7 ppt< 7< 7< 7< 7
PFUnA2 ppt< 2< 2< 2< 2
lithium9 µg/L< 9< 9< 9< 9

Gowers Corner POE facility 00007 · sample point 1361009 · MX

CompoundMRL2023-07-19
SE1
2023-10-18
SE2
2024-01-11
SE3
2024-01-31
SE3
2024-04-17
SE4
11Cl-PF3OUdS5 ppt< 5< 5–< 5< 5
4:2 FTS3 ppt< 3< 3–< 3< 3
6:2 FTS5 ppt< 5< 5–< 5< 5
8:2 FTS5 ppt< 5< 5–< 5< 5
9Cl-PF3ONS2 ppt< 2< 2–< 2< 2
ADONA3 ppt< 3< 3–< 3< 3
HFPO-DA5 ppt< 5< 5–< 5< 5
NEtFOSAA5 ppt< 5< 5< 5–< 5
NFDHA20 ppt< 20< 20–< 20< 20
NMeFOSAA6 ppt< 6< 6< 6–< 6
PFBA5 ppt< 5< 5–< 5< 5
PFBS3 ppt< 3< 3–< 3< 3
PFDA3 ppt< 3< 3–< 3< 3
PFDoA3 ppt< 3< 3–< 3< 3
PFEESA3 ppt< 3< 3–< 3< 3
PFHpA3 ppt< 3< 3–< 3< 3
PFHpS3 ppt< 3< 3–< 3< 3
PFHxA3 ppt< 3< 3–< 3< 3
PFHxS3 ppt< 3< 3–< 3< 3
PFMBA3 ppt< 3< 3–< 3< 3
PFMPA4 ppt< 4< 4–< 4< 4
PFNA4 ppt< 4< 4–< 4< 4
PFOA4 ppt< 4< 4–< 4< 4
PFOS4 ppt< 4< 4–< 4< 4
PFPeA3 ppt< 3< 3–< 3< 3
PFPeS4 ppt< 4< 4–< 4< 4
PFTA8 ppt< 8< 8< 8–< 8
PFTrDA7 ppt< 7< 7< 7–< 7
PFUnA2 ppt< 2< 2–< 2< 2
lithium9 µg/L< 9< 9< 9–< 9

Little Rd. WTP facility 00001 · sample point 1361001 · MX

CompoundMRL2023-07-18
SE1
2023-10-17
SE2
2024-01-10
SE3
2024-04-16
SE4
2024-05-13
SE4
PFHxA3 ppt3< 33.1–< 3
PFPeA3 ppt3.83.84.1–< 3
11Cl-PF3OUdS5 ppt< 5< 5< 5–< 5
4:2 FTS3 ppt< 3< 3< 3–< 3
6:2 FTS5 ppt< 5< 5< 5–< 5
8:2 FTS5 ppt< 5< 5< 5–< 5
9Cl-PF3ONS2 ppt< 2< 2< 2–< 2
ADONA3 ppt< 3< 3< 3–< 3
HFPO-DA5 ppt< 5< 5< 5–< 5
NEtFOSAA5 ppt< 5< 5< 5< 5–
NFDHA20 ppt< 20< 20< 20–< 20
NMeFOSAA6 ppt< 6< 6< 6< 6–
PFBA5 ppt< 5< 5< 5–< 5
PFBS3 ppt< 3< 3< 3–< 3
PFDA3 ppt< 3< 3< 3–< 3
PFDoA3 ppt< 3< 3< 3–< 3
PFEESA3 ppt< 3< 3< 3–< 3
PFHpA3 ppt< 3< 3< 3–< 3
PFHpS3 ppt< 3< 3< 3–< 3
PFHxS3 ppt< 3< 3< 3–< 3
PFMBA3 ppt< 3< 3< 3–< 3
PFMPA4 ppt< 4< 4< 4–< 4
PFNA4 ppt< 4< 4< 4–< 4
PFOA4 ppt< 4< 4< 4–< 4
PFOS4 ppt< 4< 4< 4–< 4
PFPeS4 ppt< 4< 4< 4–< 4
PFTA8 ppt< 8< 8< 8< 8–
PFTrDA7 ppt< 7< 7< 7< 7–
PFUnA2 ppt< 2< 2< 2–< 2
lithium9 µg/L< 9< 9< 9< 9–

One Pasco Center POE facility 00008 · sample point 1361010 · MX

CompoundMRL2023-07-19
SE1
2023-10-18
SE2
2024-01-11
SE3
2024-02-28
SE3
2024-04-17
SE4
11Cl-PF3OUdS5 ppt< 5< 5–< 5< 5
4:2 FTS3 ppt< 3< 3–< 3< 3
6:2 FTS5 ppt< 5< 5–< 5< 5
8:2 FTS5 ppt< 5< 5–< 5< 5
9Cl-PF3ONS2 ppt< 2< 2–< 2< 2
ADONA3 ppt< 3< 3–< 3< 3
HFPO-DA5 ppt< 5< 5–< 5< 5
NEtFOSAA5 ppt< 5< 5< 5–< 5
NFDHA20 ppt< 20< 20–< 20< 20
NMeFOSAA6 ppt< 6< 6< 6–< 6
PFBA5 ppt< 5< 5–< 5< 5
PFBS3 ppt< 3< 3–< 3< 3
PFDA3 ppt< 3< 3–< 3< 3
PFDoA3 ppt< 3< 3–< 3< 3
PFEESA3 ppt< 3< 3–< 3< 3
PFHpA3 ppt< 3< 3–< 3< 3
PFHpS3 ppt< 3< 3–< 3< 3
PFHxA3 ppt< 3< 3–< 3< 3
PFHxS3 ppt< 3< 3–< 3< 3
PFMBA3 ppt< 3< 3–< 3< 3
PFMPA4 ppt< 4< 4–< 4< 4
PFNA4 ppt< 4< 4–< 4< 4
PFOA4 ppt< 4< 4–< 4< 4
PFOS4 ppt< 4< 4–< 4< 4
PFPeA3 ppt< 3< 3–< 3< 3
PFPeS4 ppt< 4< 4–< 4< 4
PFTA8 ppt< 8< 8< 8–< 8
PFTrDA7 ppt< 7< 7< 7–< 7
PFUnA2 ppt< 2< 2–< 2< 2
lithium9 µg/L< 9< 9< 9–< 9

Southeast WTP facility 00006 · sample point 1361006 · MX

CompoundMRL2023-07-19
SE1
2023-12-12
SE2
2024-01-11
SE3
2024-04-17
SE4
PFBS3 ppt7.98.78.38.6
PFOS4 ppt7.47.87.88.1
11Cl-PF3OUdS5 ppt< 5< 5< 5< 5
4:2 FTS3 ppt< 3< 3< 3< 3
6:2 FTS5 ppt< 5< 5< 5< 5
8:2 FTS5 ppt< 5< 5< 5< 5
9Cl-PF3ONS2 ppt< 2< 2< 2< 2
ADONA3 ppt< 3< 3< 3< 3
HFPO-DA5 ppt< 5< 5< 5< 5
NEtFOSAA5 ppt< 5< 5< 5< 5
NFDHA20 ppt< 20< 20< 20< 20
NMeFOSAA6 ppt< 6< 6< 6< 6
PFBA5 ppt< 5< 5< 5< 5
PFDA3 ppt< 3< 3< 3< 3
PFDoA3 ppt< 3< 3< 3< 3
PFEESA3 ppt< 3< 3< 3< 3
PFHpA3 ppt< 3< 3< 3< 3
PFHpS3 ppt< 3< 3< 3< 3
PFHxA3 ppt< 3< 3< 3< 3
PFHxS3 ppt< 3< 3< 3< 3
PFMBA3 ppt< 3< 3< 3< 3
PFMPA4 ppt< 4< 4< 4< 4
PFNA4 ppt< 4< 4< 4< 4
PFOA4 ppt< 4< 4< 4< 4
PFPeA3 ppt< 3< 3< 3< 3
PFPeS4 ppt< 4< 4< 4< 4
PFTA8 ppt< 8< 8< 8< 8
PFTrDA7 ppt< 7< 7< 7< 7
PFUnA2 ppt< 2< 2< 2< 2
lithium9 µg/L< 9< 9< 9< 9

Southwest WTP facility 00003 · sample point 1361003 · MX

CompoundMRL2023-07-18
SE1
2023-10-10
SE2
2024-01-10
SE3
2024-04-16
SE4
2024-05-13
SE4
PFHxA3 ppt3.73.24.1–< 3
PFPeA3 ppt4.84.45.4–< 3
11Cl-PF3OUdS5 ppt< 5< 5< 5–< 5
4:2 FTS3 ppt< 3< 3< 3–< 3
6:2 FTS5 ppt< 5< 5< 5–< 5
8:2 FTS5 ppt< 5< 5< 5–< 5
9Cl-PF3ONS2 ppt< 2< 2< 2–< 2
ADONA3 ppt< 3< 3< 3–< 3
HFPO-DA5 ppt< 5< 5< 5–< 5
NEtFOSAA5 ppt< 5< 5< 5< 5–
NFDHA20 ppt< 20< 20< 20–< 20
NMeFOSAA6 ppt< 6< 6< 6< 6–
PFBA5 ppt< 5< 5< 5–< 5
PFBS3 ppt< 3< 3< 3–< 3
PFDA3 ppt< 3< 3< 3–< 3
PFDoA3 ppt< 3< 3< 3–< 3
PFEESA3 ppt< 3< 3< 3–< 3
PFHpA3 ppt< 3< 3< 3–< 3
PFHpS3 ppt< 3< 3< 3–< 3
PFHxS3 ppt< 3< 3< 3–< 3
PFMBA3 ppt< 3< 3< 3–< 3
PFMPA4 ppt< 4< 4< 4–< 4
PFNA4 ppt< 4< 4< 4–< 4
PFOA4 ppt< 4< 4< 4–< 4
PFOS4 ppt< 4< 4< 4–< 4
PFPeS4 ppt< 4< 4< 4–< 4
PFTA8 ppt< 8< 8< 8< 8–
PFTrDA7 ppt< 7< 7< 7< 7–
PFUnA2 ppt< 2< 2< 2–< 2
lithium9 µg/L< 9< 9< 9< 9–

TBW-US 41 (Cypress Creek) Intertie facility 00009 · sample point 138002 · MX

CompoundMRL2023-07-18
SE1
2023-10-17
SE2
2024-01-10
SE3
2024-04-16
SE4
2024-05-13
SE4
PFHxA3 ppt3.6< 33–< 3
PFPeA3 ppt4.73.63.8–< 3
11Cl-PF3OUdS5 ppt< 5< 5< 5–< 5
4:2 FTS3 ppt< 3< 3< 3–< 3
6:2 FTS5 ppt< 5< 5< 5–< 5
8:2 FTS5 ppt< 5< 5< 5–< 5
9Cl-PF3ONS2 ppt< 2< 2< 2–< 2
ADONA3 ppt< 3< 3< 3–< 3
HFPO-DA5 ppt< 5< 5< 5–< 5
NEtFOSAA5 ppt< 5< 5< 5< 5–
NFDHA20 ppt< 20< 20< 20–< 20
NMeFOSAA6 ppt< 6< 6< 6< 6–
PFBA5 ppt< 5< 5< 5–< 5
PFBS3 ppt< 3< 3< 3–< 3
PFDA3 ppt< 3< 3< 3–< 3
PFDoA3 ppt< 3< 3< 3–< 3
PFEESA3 ppt< 3< 3< 3–< 3
PFHpA3 ppt< 3< 3< 3–< 3
PFHpS3 ppt< 3< 3< 3–< 3
PFHxS3 ppt< 3< 3< 3–< 3
PFMBA3 ppt< 3< 3< 3–< 3
PFMPA4 ppt< 4< 4< 4–< 4
PFNA4 ppt< 4< 4< 4–< 4
PFOA4 ppt< 4< 4< 4–< 4
PFOS4 ppt< 4< 4< 4–< 4
PFPeS4 ppt< 4< 4< 4–< 4
PFTA8 ppt< 8< 8< 8< 8–
PFTrDA7 ppt< 7< 7< 7< 7–
PFUnA2 ppt< 2< 2< 2–< 2
lithium9 µg/L< 9< 9< 9< 9–

Tampa Lakebridge Intertie facility 00010 · sample point 1361012 · MX

CompoundMRL2023-07-18
SE1
2023-10-17
SE2
2024-01-10
SE3
2024-04-16
SE4
2024-05-13
SE4
PFBA5 ppt5.35.7< 5–6.7
PFBS3 ppt43.54.1–4.2
PFHpA3 ppt3.8< 3< 3–3.3
PFHxA3 ppt8.15.35.5–6.2
PFOS4 ppt4.4< 44.2–< 4
PFPeA3 ppt10.47.47.4–8.4
11Cl-PF3OUdS5 ppt< 5< 5< 5–< 5
4:2 FTS3 ppt< 3< 3< 3–< 3
6:2 FTS5 ppt< 5< 5< 5–< 5
8:2 FTS5 ppt< 5< 5< 5–< 5
9Cl-PF3ONS2 ppt< 2< 2< 2–< 2
ADONA3 ppt< 3< 3< 3–< 3
HFPO-DA5 ppt< 5< 5< 5–< 5
NEtFOSAA5 ppt< 5< 5< 5< 5–
NFDHA20 ppt< 20< 20< 20–< 20
NMeFOSAA6 ppt< 6< 6< 6< 6–
PFDA3 ppt< 3< 3< 3–< 3
PFDoA3 ppt< 3< 3< 3–< 3
PFEESA3 ppt< 3< 3< 3–< 3
PFHpS3 ppt< 3< 3< 3–< 3
PFHxS3 ppt< 3< 3< 3–< 3
PFMBA3 ppt< 3< 3< 3–< 3
PFMPA4 ppt< 4< 4< 4–< 4
PFNA4 ppt< 4< 4< 4–< 4
PFOA4 ppt< 4< 4< 4–< 4
PFPeS4 ppt< 4< 4< 4–< 4
PFTA8 ppt< 8< 8< 8< 8–
PFTrDA7 ppt< 7< 7< 7< 7–
PFUnA2 ppt< 2< 2< 2–< 2
lithium9 µg/L< 9< 9< 9< 9–

Statistics by compound

CompoundResultsDetectedHighest (date)Mean boundsKM medianP75P90P95
PFPeA3241%10.4
2023-07-18
2.25–4.03<MRL4.17.48.4
PFHxA3234%8.1
2023-07-18
1.52–3.49<MRL3.15.36.2
PFBS3225%8.7
2023-12-12
1.54–3.79<MRL<MRL7.98.6
PFOS3219%8.1
2024-04-17
1.24–4.49<MRL<MRL7.47.8
PFBA329%6.7
2024-05-13
0.55–5.08<MRL<MRL<MRL5.7
PFHpA326%3.8
2023-07-18
0.22–3.03<MRL<MRL<MRL3.3

Never detected (24): 11Cl-PF3OUdS, 4:2 FTS, 6:2 FTS, 8:2 FTS, 9Cl-PF3ONS, ADONA, HFPO-DA, NEtFOSAA, NFDHA, NMeFOSAA, PFDA, PFDoA, PFEESA, PFHpS, PFHxS, PFMBA, PFMPA, PFNA, PFOA, PFPeS, PFTA, PFTrDA, PFUnA, lithium.

Left-censored Kaplan–Meier statistics (Helsel 2005; Helsel & Lee 2006, NADA for R). Units: ppt; lithium µg/L. Each compound has one reporting limit, so the Kaplan–Meier mean equals the upper mean bound (non-detects at the MRL); the lower bound sets non-detects to 0. “<MRL” = the percentile falls below the reporting limit and cannot be estimated. These describe this system's UCMR 5 samples, not population estimates.

Sources

  • EPA UCMR 5 occurrence data text files (UCMR5_All.txt; samples 2023-01-03 to 2026-06-09; data summary dated Jul 2026)
  • EPA SDWIS via ECHO SDWA downloads, quarter 2026Q3
  • EPA Public Water System Service Areas v3 (Mar 2026)
  • US Census Bureau cartographic boundary counties 1:500k, 2024
  • EPA/USGS NHDPlus V2 (medium resolution) flowlines, Strahler order 2+

Data build 77d99d3b80c8 · 2026-10-18T04:10Z · UCMR 5 release Jul2026 · SDWIS 2026Q3. Data and methods.