Truckee Meadows Water Authority (NV0000190) PFAS Drinking-Water Results

PWSID: NV0000190
State: Nevada
System type: community water system (CWS)
Population served: 442,000
City: Reno
Counties: Washoe County
Primary source water: surface water
UCMR 5 sampling: 2023-01-11 to 2025-09-02 · 68 entry point(s) · water types: GW;MX;SW
Service-area boundary: authoritative

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

Open on the Nevada map · All Nevada systems · All results

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

Sun Valley Gid (NV0000211)
Seller's highest results: PFOA <MRL · PFOS <MRL · HI 0

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 result	Worst entry-point average*	Limit
PFOA (ppt)	5.5	5.2	4
PFOS (ppt)	20	13	4
Hazard Index	1.502	1.302	1.0†

“<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 Nevada PFAS drinking-water standard in effect or proposed as of 2026-10-17: No Nevada-specific PFAS drinking-water standard; NDEP implementing federal NPDWR.

Sampling history

Sampled 2023-01-11 to 2025-09-02 · 68 entry point(s) · water types: GW;MX;SW · 155 sampling visits. PFAS in ppt (ng/L).

Date	Entry point	Event	PFOA	PFOS	HI	Other detections
2023-01-11	21st St. Well (GW)	SE1	n/a	n/a	n/a	none
2023-01-11	4th St. Well (GW)	SE1	n/a	n/a	n/a	none
2023-01-11	Galletti Well (GW)	SE1	n/a	n/a	n/a	none
2023-01-11	View St. Well (GW)	SE1	n/a	n/a	n/a	none
2023-01-17	Chalk Bluff Truckee Surface Water Plant (SW)	SE1	n/a	n/a	n/a	none
2023-01-17	Delucchi Well (GW)	SE1	<4	<4	0	lithium 15 µg/L
2023-01-17	Glen Hare Well (GW)	SE1	n/a	n/a	n/a	none
2023-01-17	Hunter Lake Well (GW)	SE1	<4	<4	0	none
2023-01-17	Innovation Well (GW)	SE1	<4	<4	0	lithium 14 µg/L
2023-01-17	Reno High Well (GW)	SE1	<4	<4	0.34	none
2023-01-17	S. Virginia St. Well (GW)	SE1	<4	<4	0	none
2023-01-17	Sierra Plaza Well (GW)	SE1	<4	<4	0	lithium 12 µg/L
2023-01-17	Swope School Well (GW)	SE1	<4	<4	0	none
2023-01-18	Huffaker Place Well (GW)	SE1	<4	<4	0	none
2023-01-18	Patriot Well (GW)	SE1	<4	<4	0	none
2023-01-24	El Rancho Well (GW)	SE1	5.5	<4	1.102	PFHxA 5.6
2023-01-24	STMGID Well 12 (GW)	SE1	<4	<4	0	none
2023-01-24	STMGID Well 5 (GW)	SE1	n/a	n/a	n/a	none
2023-01-24	St James Well 1 (GW)	SE1	<4	<4	0	none
2023-01-24	St James Well 2 (GW)	SE1	<4	<4	0	none
2023-01-24	Thomas Creek Well 1 (GW)	SE1	<4	<4	0	none
2023-02-14	Arrowcreek Well 3 (GW)	SE1	n/a	n/a	n/a	none
2023-02-14	Double Diamond Well 3 (GW)	SE1	n/a	n/a	n/a	lithium 10 µg/L
2023-02-14	Greg Street Well (GW)	SE1	n/a	n/a	n/a	none
2023-02-14	Mt Rose Well 6 (GW)	SE1	n/a	n/a	n/a	none
2023-02-14	STMGID Well 4 (GW)	SE1	n/a	n/a	n/a	lithium 17 µg/L
2023-02-14	STMGID Well 6 (GW)	SE1	n/a	n/a	n/a	none
2023-02-14	Tessa Well 2 (GW)	SE1	<4	<4	0	none
2023-03-21	Arrowcreek Well 3 (GW)	SE1	<4	<4	0	none
2023-03-21	Double Diamond Well 3 (GW)	SE1	<4	<4	0	none
2023-03-21	Greg Street Well (GW)	SE1	<4	<4	0	none
2023-03-21	Mt Rose Well 6 (GW)	SE1	<4	<4	0	none
2023-03-21	STMGID Well 4 (GW)	SE1	<4	<4	0	none
2023-03-21	STMGID Well 6 (GW)	SE1	<4	<4	0	none
2023-03-28	21st St. Well (GW)	SE1	<4	<4	0	none
2023-03-28	4th St. Well (GW)	SE1	<4	<4	0	none
2023-03-28	Galletti Well (GW)	SE1	<4	<4	0	none
2023-03-28	View St. Well (GW)	SE1	<4	<4	0	none
2023-04-18	Chalk Bluff Truckee Surface Water Plant (SW)	SE2	<4	<4	0	none
2023-04-18	Glen Hare Well (GW)	SE1	<4	<4	0.37	none
2023-04-18	Lemmon Valley Well 5 (GW)	SE1	<4	<4	0	none
2023-04-18	Lemmon Valley Well 9 (GW)	SE1	<4	<4	0	none
2023-04-18	STMGID Well 1 (GW)	SE1	<4	<4	0	none
2023-04-18	STMGID Well 5 (GW)	SE1	<4	<4	0	none
2023-04-18	Silver Knolls Well (GW)	SE1	<4	<4	0	none
2023-04-27	Glendale Truckee River SW & GW Plant (MX)	SE1	<4	<4	0	none
2023-05-09	Lemmon Valley Well 7 (GW)	SE1	4.7	20	1.502	PFBA 6.8, PFHpA 3.9, PFHxA 12, PFPeA 10
2023-05-16	Tessa Well 1 (GW)	SE1	<4	<4	0	none
2023-06-13	Hawkings Court Well (GW)	SE1	<4	<4	0	none
2023-07-05	Delucchi Well (GW)	SE2	<4	<4	0	lithium 14 µg/L
2023-07-05	Huffaker Place Well (GW)	SE2	<4	<4	0	none
2023-07-05	Hunter Lake Well (GW)	SE2	<4	<4	0.38	none
2023-07-05	Innovation Well (GW)	SE2	<4	<4	0	lithium 15.2 µg/L
2023-07-05	Patriot Well (GW)	SE2	<4	<4	0	none
2023-07-05	STMGID Well 12 (GW)	SE2	<4	<4	0	none
2023-07-05	STMGID Well 5 (GW)	SE2	<4	<4	0	none
2023-07-05	St James Well 1 (GW)	SE2	<4	<4	0	none
2023-07-05	St James Well 2 (GW)	SE2	<4	<4	0	none
2023-07-05	Thomas Creek Well 1 (GW)	SE2	<4	<4	0	none
2023-07-10	Chalk Bluff Truckee Surface Water Plant (SW)	SE3	<4	<4	0	none
2023-07-10	Glendale Truckee River SW & GW Plant (MX)	SE2	<4	<4	0	none
2023-07-12	S. Virginia St. Well (GW)	SE2	<4	<4	0	lithium 9.82 µg/L
2023-07-12	Sierra Plaza Well (GW)	SE2	<4	<4	0	none
2023-07-18	4th St. Well (GW)	SE2	<4	<4	0	none
2023-07-18	El Rancho Well (GW)	SE2	4.9	<4	1.102	PFHxA 5.3
2023-07-18	Galletti Well (GW)	SE2	<4	<4	0	none
2023-07-18	Reno High Well (GW)	SE2	<4	<4	0.51	none
2023-07-18	Swope School Well (GW)	SE2	<4	<4	0	none
2023-07-18	View St. Well (GW)	SE2	<4	<4	0	none
2023-07-19	21st St. Well (GW)	SE2	<4	<4	0	none
2023-07-19	Glen Hare Well (GW)	SE2	<4	<4	0.31	none
2023-07-25	Holcomb Well (GW)	SE1	<4	<4	0	none
2023-07-26	STMGID Well 11 (GW)	SE1	<4	<4	0	none
2023-07-26	Silver Lake Replacement Well (GW)	SE1	<4	<4	0	none
2023-08-01	Arrowcreek Well 3 (GW)	SE2	<4	<4	0	none
2023-08-01	Double Diamond Well 3 (GW)	SE2	<4	<4	0	none
2023-08-01	Mt Rose Well 6 (GW)	SE2	<4	<4	0	none
2023-08-01	STMGID Well 4 (GW)	SE2	<4	<4	0	lithium 18.2 µg/L
2023-08-01	STMGID Well 6 (GW)	SE2	<4	<4	0	none
2023-08-01	Tessa Well 2 (GW)	SE2	<4	<4	0	none
2023-08-29	Greg Street Well (GW)	SE2	<4	<4	0	none
2023-08-29	Spring Creek Well 2 (GW)	SE1	<4	<4	0.493	PFHxA 9.1, PFPeA 13
2023-09-11	Mt Rose Treatment Plant (SW)	SE1	<4	<4	0	none
2023-09-20	Spring Creek Well 6 (GW)	SE1	<4	<4	0	none
2023-10-03	Chalk Bluff Truckee Surface Water Plant (SW)	SE4	<4	<4	0	none
2023-10-03	Glendale Truckee River SW & GW Plant (MX)	SE3	<4	<4	0	none
2023-10-03	STMGID Well 1 (GW)	SE2	<4	<4	0	none
2023-10-16	Kietzke Ln. Well PCE Stripper (GW)	SE1	<4	<4	0	lithium 10.1 µg/L
2023-10-17	Morrill Ave. & High St. PCE Stripper (GW)	SE1	<4	<4	0.32	lithium 11.7 µg/L
2023-10-18	Silver Knolls Well (GW)	SE2	<4	<4	0	none
2023-10-24	Lemmon Valley Well 5 (GW)	SE2	<4	<4	0	none
2023-10-24	Lemmon Valley Well 9 (GW)	SE2	<4	<4	0	none
2023-11-14	Lemmon Valley Well 7 (GW)	SE2	<4	6	0.69	PFHxA 4.3, PFPeA 3.4
2023-11-14	Tessa Well 1 (GW)	SE2	<4	<4	0	none
2023-12-04	Mt Rose Treatment Plant (SW)	SE2	<4	<4	0	none
2023-12-06	Hawkings Court Well (GW)	SE2	<4	<4	0	none
2024-01-03	Chalk Bluff Truckee Surface Water Plant (SW)	SE1	<4	<4	0	none
2024-01-09	Holcomb Well (GW)	SE2	<4	<4	0	none
2024-01-09	STMGID Well 11 (GW)	SE2	<4	<4	0	none
2024-01-09	Silver Lake Replacement Well (GW)	SE2	<4	<4	0	none
2024-01-10	Spring Creek Well 7 pH Adj (GW)	SE1	<4	<4	0	none
2024-02-06	Hidden Valley Well 5 (GW)	SE1	<4	<4	0	none
2024-02-21	Spring Creek Well 2 (GW)	SE2	<4	<4	0.412	PFHxA 6.1, PFPeA 11
2024-02-21	Spring Creek Well 8 (GW)	SE1	<4	<4	0	none
2024-02-27	Fish Springs Well A (GW)	SE1	<4	<4	0	none
2024-02-27	Fish Springs Well B (GW)	SE1	<4	<4	0	none
2024-02-27	Fish Springs Well C (GW)	SE1	<4	<4	0	none
2024-02-27	Fish Springs Well D (GW)	SE1	<4	<4	0	none
2024-02-27	Fish Springs Well E (GW)	SE1	<4	<4	0	none
2024-03-13	Spring Creek Well 6 (GW)	SE2	<4	<4	0	none
2024-03-14	Mt Rose Treatment Plant (SW)	SE3	<4	<4	0	none
2024-04-29	Glendale Truckee River SW & GW Plant (MX)	SE4	<4	<4	0	none
2024-05-28	Kietzke Ln. Well PCE Stripper (GW)	SE2	<4	<4	0.33	none
2024-05-28	Morrill Ave. & High St. PCE Stripper (GW)	SE2	<4	<4	0	lithium 13.8 µg/L
2024-06-04	Lakeside Dr. Well (GW)	SE1	<4	<4	0	none
2024-06-04	Poplar St. Well 2 (GW)	SE1	<4	<4	0	none
2024-07-16	Mt Rose Treatment Plant (SW)	SE4	<4	<4	0	none
2024-07-16	Spring Creek Well 7 pH Adj (GW)	SE2	<4	<4	0	none
2024-08-13	Hidden Valley Well 5 (GW)	SE2	<4	<4	0	none
2024-08-13	Spring Creek Well 8 (GW)	SE2	<4	<4	0	none
2024-08-20	Fish Springs Well A (GW)	SE2	<4	<4	0	none
2024-08-20	Fish Springs Well B (GW)	SE2	<4	<4	0	none
2024-08-20	Fish Springs Well C (GW)	SE2	<4	<4	0	none
2024-08-20	Fish Springs Well D (GW)	SE2	<4	<4	0	none
2024-08-20	Fish Springs Well E (GW)	SE2	<4	<4	0	none
2024-12-04	Lakeside Dr. Well (GW)	SE2	<4	<4	0	none
2024-12-04	Poplar St. Well 2 (GW)	SE2	<4	<4	0	none
2025-01-08	Arrowcreek Well 2 (GW)	SE1	<4	<4	0	none
2025-01-14	Sparks Ave. Well (GW)	SE1	<4	<4	0	none
2025-01-15	Double Diamond Well 1 (GW)	SE1	<4	<4	0	none
2025-01-15	Mt Rose Well 3 (GW)	SE1	<4	<4	0	none
2025-01-21	Arrowcreek Well 1 (GW)	SE1	<4	<4	0	none
2025-01-21	Longley Ln. Well (GW)	SE1	<4	<4	0	none
2025-01-21	Mt Rose Well 5 (GW)	SE1	<4	<4	0	none
2025-02-04	West Reno Well 10 (GW)	SE1	<4	<4	0	none
2025-02-04	West Reno Well 8 (GW)	SE1	<4	<4	0	none
2025-02-18	West Reno Well 7 (GW)	SE1	<4	5.3	1.302	PFPeA 3.9
2025-02-19	STMGID Well 7 (GW)	SE1	<4	<4	0	none
2025-02-26	STMGID Well 2 (GW)	SE1	<4	<4	0	lithium 86.7 µg/L
2025-02-26	West Reno Well 12 (GW)	SE1	<4	4.9	1.402	none
2025-03-17	STMGID Well 3 (GW)	SE1	<4	<4	0	none
2025-07-01	Arrowcreek Well 1 (GW)	SE2	<4	<4	0	none
2025-07-01	Arrowcreek Well 2 (GW)	SE2	<4	<4	0	none
2025-07-01	Longley Ln. Well (GW)	SE2	<4	<4	0	none
2025-07-01	Mt Rose Well 3 (GW)	SE2	<4	<4	0	none
2025-07-01	Mt Rose Well 5 (GW)	SE2	<4	<4	0	none
2025-07-10	Sparks Ave. Well (GW)	SE2	<4	<4	0	none
2025-07-15	Double Diamond Well 1 (GW)	SE2	<4	<4	0	none
2025-08-05	STMGID Well 2 (GW)	SE2	<4	<4	0	lithium 100 µg/L
2025-08-05	STMGID Well 7 (GW)	SE2	<4	<4	0	none
2025-08-13	West Reno Well 10 (GW)	SE2	<4	<4	0.37	none
2025-08-13	West Reno Well 12 (GW)	SE2	<4	4.2	1.202	none
2025-08-13	West Reno Well 7 (GW)	SE2	<4	4.9	1.302	PFHxA 3.2, PFPeA 4.8
2025-08-20	West Reno Well 8 (GW)	SE2	<4	<4	0	none
2025-09-02	STMGID Well 3 (GW)	SE2	<4	<4	0	lithium 9.71 µg/L

“<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

4260 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.

21st St. Well facility 91018 · sample point 18 · groundwater

Compound	MRL	2023-01-11 SE1	2023-03-28 SE1	2023-07-19 SE2
11Cl-PF3OUdS	5 ppt	–	< 5	< 5
4:2 FTS	3 ppt	–	< 3	< 3
6:2 FTS	5 ppt	–	< 5	< 5
8:2 FTS	5 ppt	–	< 5	< 5
9Cl-PF3ONS	2 ppt	–	< 2	< 2
ADONA	3 ppt	–	< 3	< 3
HFPO-DA	5 ppt	–	< 5	< 5
NEtFOSAA	5 ppt	< 5	–	< 5
NFDHA	20 ppt	–	< 20	< 20
NMeFOSAA	6 ppt	< 6	–	< 6
PFBA	5 ppt	–	< 5	< 5
PFBS	3 ppt	–	< 3	< 3
PFDA	3 ppt	–	< 3	< 3
PFDoA	3 ppt	–	< 3	< 3
PFEESA	3 ppt	–	< 3	< 3
PFHpA	3 ppt	–	< 3	< 3
PFHpS	3 ppt	–	< 3	< 3
PFHxA	3 ppt	–	< 3	< 3
PFHxS	3 ppt	–	< 3	< 3
PFMBA	3 ppt	–	< 3	< 3
PFMPA	4 ppt	–	< 4	< 4
PFNA	4 ppt	–	< 4	< 4
PFOA	4 ppt	–	< 4	< 4
PFOS	4 ppt	–	< 4	< 4
PFPeA	3 ppt	–	< 3	< 3
PFPeS	4 ppt	–	< 4	< 4
PFTA	8 ppt	< 8	–	< 8
PFTrDA	7 ppt	< 7	–	< 7
PFUnA	2 ppt	–	< 2	< 2
lithium	9 µg/L	< 9	–	< 9

4th St. Well facility 91023 · sample point 23 · groundwater

Compound	MRL	2023-01-11 SE1	2023-03-28 SE1	2023-07-18 SE2
11Cl-PF3OUdS	5 ppt	–	< 5	< 5
4:2 FTS	3 ppt	–	< 3	< 3
6:2 FTS	5 ppt	–	< 5	< 5
8:2 FTS	5 ppt	–	< 5	< 5
9Cl-PF3ONS	2 ppt	–	< 2	< 2
ADONA	3 ppt	–	< 3	< 3
HFPO-DA	5 ppt	–	< 5	< 5
NEtFOSAA	5 ppt	< 5	–	< 5
NFDHA	20 ppt	–	< 20	< 20
NMeFOSAA	6 ppt	< 6	–	< 6
PFBA	5 ppt	–	< 5	< 5
PFBS	3 ppt	–	< 3	< 3
PFDA	3 ppt	–	< 3	< 3
PFDoA	3 ppt	–	< 3	< 3
PFEESA	3 ppt	–	< 3	< 3
PFHpA	3 ppt	–	< 3	< 3
PFHpS	3 ppt	–	< 3	< 3
PFHxA	3 ppt	–	< 3	< 3
PFHxS	3 ppt	–	< 3	< 3
PFMBA	3 ppt	–	< 3	< 3
PFMPA	4 ppt	–	< 4	< 4
PFNA	4 ppt	–	< 4	< 4
PFOA	4 ppt	–	< 4	< 4
PFOS	4 ppt	–	< 4	< 4
PFPeA	3 ppt	–	< 3	< 3
PFPeS	4 ppt	–	< 4	< 4
PFTA	8 ppt	< 8	–	< 8
PFTrDA	7 ppt	< 7	–	< 7
PFUnA	2 ppt	–	< 2	< 2
lithium	9 µg/L	< 9	–	< 9

Arrowcreek Well 1 facility 91041 · sample point W41 · groundwater

Compound	MRL	2025-01-21 SE1	2025-07-01 SE2
11Cl-PF3OUdS	5 ppt	< 5	< 5
4:2 FTS	3 ppt	< 3	< 3
6:2 FTS	5 ppt	< 5	< 5
8:2 FTS	5 ppt	< 5	< 5
9Cl-PF3ONS	2 ppt	< 2	< 2
ADONA	3 ppt	< 3	< 3
HFPO-DA	5 ppt	< 5	< 5
NEtFOSAA	5 ppt	< 5	< 5
NFDHA	20 ppt	< 20	< 20
NMeFOSAA	6 ppt	< 6	< 6
PFBA	5 ppt	< 5	< 5
PFBS	3 ppt	< 3	< 3
PFDA	3 ppt	< 3	< 3
PFDoA	3 ppt	< 3	< 3
PFEESA	3 ppt	< 3	< 3
PFHpA	3 ppt	< 3	< 3
PFHpS	3 ppt	< 3	< 3
PFHxA	3 ppt	< 3	< 3
PFHxS	3 ppt	< 3	< 3
PFMBA	3 ppt	< 3	< 3
PFMPA	4 ppt	< 4	< 4
PFNA	4 ppt	< 4	< 4
PFOA	4 ppt	< 4	< 4
PFOS	4 ppt	< 4	< 4
PFPeA	3 ppt	< 3	< 3
PFPeS	4 ppt	< 4	< 4
PFTA	8 ppt	< 8	< 8
PFTrDA	7 ppt	< 7	< 7
PFUnA	2 ppt	< 2	< 2
lithium	9 µg/L	< 9	< 9

Arrowcreek Well 2 facility 91042 · sample point W42 · groundwater

Compound	MRL	2025-01-08 SE1	2025-07-01 SE2
11Cl-PF3OUdS	5 ppt	< 5	< 5
4:2 FTS	3 ppt	< 3	< 3
6:2 FTS	5 ppt	< 5	< 5
8:2 FTS	5 ppt	< 5	< 5
9Cl-PF3ONS	2 ppt	< 2	< 2
ADONA	3 ppt	< 3	< 3
HFPO-DA	5 ppt	< 5	< 5
NEtFOSAA	5 ppt	< 5	< 5
NFDHA	20 ppt	< 20	< 20
NMeFOSAA	6 ppt	< 6	< 6
PFBA	5 ppt	< 5	< 5
PFBS	3 ppt	< 3	< 3
PFDA	3 ppt	< 3	< 3
PFDoA	3 ppt	< 3	< 3
PFEESA	3 ppt	< 3	< 3
PFHpA	3 ppt	< 3	< 3
PFHpS	3 ppt	< 3	< 3
PFHxA	3 ppt	< 3	< 3
PFHxS	3 ppt	< 3	< 3
PFMBA	3 ppt	< 3	< 3
PFMPA	4 ppt	< 4	< 4
PFNA	4 ppt	< 4	< 4
PFOA	4 ppt	< 4	< 4
PFOS	4 ppt	< 4	< 4
PFPeA	3 ppt	< 3	< 3
PFPeS	4 ppt	< 4	< 4
PFTA	8 ppt	< 8	< 8
PFTrDA	7 ppt	< 7	< 7
PFUnA	2 ppt	< 2	< 2
lithium	9 µg/L	< 9	< 9

Arrowcreek Well 3 facility 91043 · sample point W43 · groundwater

Compound	MRL	2023-02-14 SE1	2023-03-21 SE1	2023-08-01 SE2
11Cl-PF3OUdS	5 ppt	–	< 5	< 5
4:2 FTS	3 ppt	–	< 3	< 3
6:2 FTS	5 ppt	–	< 5	< 5
8:2 FTS	5 ppt	–	< 5	< 5
9Cl-PF3ONS	2 ppt	–	< 2	< 2
ADONA	3 ppt	–	< 3	< 3
HFPO-DA	5 ppt	–	< 5	< 5
NEtFOSAA	5 ppt	< 5	–	< 5
NFDHA	20 ppt	–	< 20	< 20
NMeFOSAA	6 ppt	< 6	–	< 6
PFBA	5 ppt	–	< 5	< 5
PFBS	3 ppt	–	< 3	< 3
PFDA	3 ppt	–	< 3	< 3
PFDoA	3 ppt	–	< 3	< 3
PFEESA	3 ppt	–	< 3	< 3
PFHpA	3 ppt	–	< 3	< 3
PFHpS	3 ppt	–	< 3	< 3
PFHxA	3 ppt	–	< 3	< 3
PFHxS	3 ppt	–	< 3	< 3
PFMBA	3 ppt	–	< 3	< 3
PFMPA	4 ppt	–	< 4	< 4
PFNA	4 ppt	–	< 4	< 4
PFOA	4 ppt	–	< 4	< 4
PFOS	4 ppt	–	< 4	< 4
PFPeA	3 ppt	–	< 3	< 3
PFPeS	4 ppt	–	< 4	< 4
PFTA	8 ppt	< 8	–	< 8
PFTrDA	7 ppt	< 7	–	< 7
PFUnA	2 ppt	–	< 2	< 2
lithium	9 µg/L	< 9	–	< 9

Chalk Bluff Truckee Surface Water Plant facility 90001 · sample point TP01 · surface water

Compound	MRL	2023-01-17 SE1	2023-04-18 SE2	2023-07-10 SE3	2023-10-03 SE4	2024-01-03 SE1
11Cl-PF3OUdS	5 ppt	–	< 5	< 5	< 5	< 5
4:2 FTS	3 ppt	–	< 3	< 3	< 3	< 3
6:2 FTS	5 ppt	–	< 5	< 5	< 5	< 5
8:2 FTS	5 ppt	–	< 5	< 5	< 5	< 5
9Cl-PF3ONS	2 ppt	–	< 2	< 2	< 2	< 2
ADONA	3 ppt	–	< 3	< 3	< 3	< 3
HFPO-DA	5 ppt	–	< 5	< 5	< 5	< 5
NEtFOSAA	5 ppt	< 5	< 5	< 5	< 5	–
NFDHA	20 ppt	–	< 20	< 20	< 20	< 20
NMeFOSAA	6 ppt	< 6	< 6	< 6	< 6	–
PFBA	5 ppt	–	< 5	< 5	< 5	< 5
PFBS	3 ppt	–	< 3	< 3	< 3	< 3
PFDA	3 ppt	–	< 3	< 3	< 3	< 3
PFDoA	3 ppt	–	< 3	< 3	< 3	< 3
PFEESA	3 ppt	–	< 3	< 3	< 3	< 3
PFHpA	3 ppt	–	< 3	< 3	< 3	< 3
PFHpS	3 ppt	–	< 3	< 3	< 3	< 3
PFHxA	3 ppt	–	< 3	< 3	< 3	< 3
PFHxS	3 ppt	–	< 3	< 3	< 3	< 3
PFMBA	3 ppt	–	< 3	< 3	< 3	< 3
PFMPA	4 ppt	–	< 4	< 4	< 4	< 4
PFNA	4 ppt	–	< 4	< 4	< 4	< 4
PFOA	4 ppt	–	< 4	< 4	< 4	< 4
PFOS	4 ppt	–	< 4	< 4	< 4	< 4
PFPeA	3 ppt	–	< 3	< 3	< 3	< 3
PFPeS	4 ppt	–	< 4	< 4	< 4	< 4
PFTA	8 ppt	< 8	< 8	< 8	< 8	–
PFTrDA	7 ppt	< 7	< 7	< 7	< 7	–
PFUnA	2 ppt	–	< 2	< 2	< 2	< 2
lithium	9 µg/L	< 9	< 9	< 9	< 9	–

Delucchi Well facility 91006 · sample point 06 · groundwater

Compound	MRL	2023-01-17 SE1	2023-07-05 SE2
11Cl-PF3OUdS	5 ppt	< 5	< 5
4:2 FTS	3 ppt	< 3	< 3
6:2 FTS	5 ppt	< 5	< 5
8:2 FTS	5 ppt	< 5	< 5
9Cl-PF3ONS	2 ppt	< 2	< 2
ADONA	3 ppt	< 3	< 3
HFPO-DA	5 ppt	< 5	< 5
NEtFOSAA	5 ppt	< 5	< 5
NFDHA	20 ppt	< 20	< 20
NMeFOSAA	6 ppt	< 6	< 6
PFBA	5 ppt	< 5	< 5
PFBS	3 ppt	< 3	< 3
PFDA	3 ppt	< 3	< 3
PFDoA	3 ppt	< 3	< 3
PFEESA	3 ppt	< 3	< 3
PFHpA	3 ppt	< 3	< 3
PFHpS	3 ppt	< 3	< 3
PFHxA	3 ppt	< 3	< 3
PFHxS	3 ppt	< 3	< 3
PFMBA	3 ppt	< 3	< 3
PFMPA	4 ppt	< 4	< 4
PFNA	4 ppt	< 4	< 4
PFOA	4 ppt	< 4	< 4
PFOS	4 ppt	< 4	< 4
PFPeA	3 ppt	< 3	< 3
PFPeS	4 ppt	< 4	< 4
PFTA	8 ppt	< 8	< 8
PFTrDA	7 ppt	< 7	< 7
PFUnA	2 ppt	< 2	< 2
lithium	9 µg/L	15	14

Double Diamond Well 1 facility 91046 · sample point W46 · groundwater

Compound	MRL	2025-01-15 SE1	2025-07-15 SE2
11Cl-PF3OUdS	5 ppt	< 5	< 5
4:2 FTS	3 ppt	< 3	< 3
6:2 FTS	5 ppt	< 5	< 5
8:2 FTS	5 ppt	< 5	< 5
9Cl-PF3ONS	2 ppt	< 2	< 2
ADONA	3 ppt	< 3	< 3
HFPO-DA	5 ppt	< 5	< 5
NEtFOSAA	5 ppt	< 5	< 5
NFDHA	20 ppt	< 20	< 20
NMeFOSAA	6 ppt	< 6	< 6
PFBA	5 ppt	< 5	< 5
PFBS	3 ppt	< 3	< 3
PFDA	3 ppt	< 3	< 3
PFDoA	3 ppt	< 3	< 3
PFEESA	3 ppt	< 3	< 3
PFHpA	3 ppt	< 3	< 3
PFHpS	3 ppt	< 3	< 3
PFHxA	3 ppt	< 3	< 3
PFHxS	3 ppt	< 3	< 3
PFMBA	3 ppt	< 3	< 3
PFMPA	4 ppt	< 4	< 4
PFNA	4 ppt	< 4	< 4
PFOA	4 ppt	< 4	< 4
PFOS	4 ppt	< 4	< 4
PFPeA	3 ppt	< 3	< 3
PFPeS	4 ppt	< 4	< 4
PFTA	8 ppt	< 8	< 8
PFTrDA	7 ppt	< 7	< 7
PFUnA	2 ppt	< 2	< 2
lithium	9 µg/L	< 9	< 9

Double Diamond Well 3 facility 91083 · sample point W83 · groundwater

Compound	MRL	2023-02-14 SE1	2023-03-21 SE1	2023-08-01 SE2
11Cl-PF3OUdS	5 ppt	–	< 5	< 5
4:2 FTS	3 ppt	–	< 3	< 3
6:2 FTS	5 ppt	–	< 5	< 5
8:2 FTS	5 ppt	–	< 5	< 5
9Cl-PF3ONS	2 ppt	–	< 2	< 2
ADONA	3 ppt	–	< 3	< 3
HFPO-DA	5 ppt	–	< 5	< 5
NEtFOSAA	5 ppt	< 5	–	< 5
NFDHA	20 ppt	–	< 20	< 20
NMeFOSAA	6 ppt	< 6	–	< 6
PFBA	5 ppt	–	< 5	< 5
PFBS	3 ppt	–	< 3	< 3
PFDA	3 ppt	–	< 3	< 3
PFDoA	3 ppt	–	< 3	< 3
PFEESA	3 ppt	–	< 3	< 3
PFHpA	3 ppt	–	< 3	< 3
PFHpS	3 ppt	–	< 3	< 3
PFHxA	3 ppt	–	< 3	< 3
PFHxS	3 ppt	–	< 3	< 3
PFMBA	3 ppt	–	< 3	< 3
PFMPA	4 ppt	–	< 4	< 4
PFNA	4 ppt	–	< 4	< 4
PFOA	4 ppt	–	< 4	< 4
PFOS	4 ppt	–	< 4	< 4
PFPeA	3 ppt	–	< 3	< 3
PFPeS	4 ppt	–	< 4	< 4
PFTA	8 ppt	< 8	–	< 8
PFTrDA	7 ppt	< 7	–	< 7
PFUnA	2 ppt	–	< 2	< 2
lithium	9 µg/L	10	–	< 9

El Rancho Well facility 91025 · sample point 25 · groundwater

Compound	MRL	2023-01-24 SE1	2023-07-18 SE2
PFBS	3 ppt	3.3	3.1
PFHxA	3 ppt	5.6	5.3
PFHxS	3 ppt	11	11
PFOA	4 ppt	5.5	4.9
11Cl-PF3OUdS	5 ppt	< 5	< 5
4:2 FTS	3 ppt	< 3	< 3
6:2 FTS	5 ppt	< 5	< 5
8:2 FTS	5 ppt	< 5	< 5
9Cl-PF3ONS	2 ppt	< 2	< 2
ADONA	3 ppt	< 3	< 3
HFPO-DA	5 ppt	< 5	< 5
NEtFOSAA	5 ppt	< 5	< 5
NFDHA	20 ppt	< 20	< 20
NMeFOSAA	6 ppt	< 6	< 6
PFBA	5 ppt	< 5	< 5
PFDA	3 ppt	< 3	< 3
PFDoA	3 ppt	< 3	< 3
PFEESA	3 ppt	< 3	< 3
PFHpA	3 ppt	< 3	< 3
PFHpS	3 ppt	< 3	< 3
PFMBA	3 ppt	< 3	< 3
PFMPA	4 ppt	< 4	< 4
PFNA	4 ppt	< 4	< 4
PFOS	4 ppt	< 4	< 4
PFPeA	3 ppt	< 3	< 3
PFPeS	4 ppt	< 4	< 4
PFTA	8 ppt	< 8	< 8
PFTrDA	7 ppt	< 7	< 7
PFUnA	2 ppt	< 2	< 2
lithium	9 µg/L	< 9	< 9

Fish Springs Well A facility 91057 · sample point W57 · groundwater

Compound	MRL	2024-02-27 SE1	2024-08-20 SE2
11Cl-PF3OUdS	5 ppt	< 5	< 5
4:2 FTS	3 ppt	< 3	< 3
6:2 FTS	5 ppt	< 5	< 5
8:2 FTS	5 ppt	< 5	< 5
9Cl-PF3ONS	2 ppt	< 2	< 2
ADONA	3 ppt	< 3	< 3
HFPO-DA	5 ppt	< 5	< 5
NEtFOSAA	5 ppt	< 5	< 5
NFDHA	20 ppt	< 20	< 20
NMeFOSAA	6 ppt	< 6	< 6
PFBA	5 ppt	< 5	< 5
PFBS	3 ppt	< 3	< 3
PFDA	3 ppt	< 3	< 3
PFDoA	3 ppt	< 3	< 3
PFEESA	3 ppt	< 3	< 3
PFHpA	3 ppt	< 3	< 3
PFHpS	3 ppt	< 3	< 3
PFHxA	3 ppt	< 3	< 3
PFHxS	3 ppt	< 3	< 3
PFMBA	3 ppt	< 3	< 3
PFMPA	4 ppt	< 4	< 4
PFNA	4 ppt	< 4	< 4
PFOA	4 ppt	< 4	< 4
PFOS	4 ppt	< 4	< 4
PFPeA	3 ppt	< 3	< 3
PFPeS	4 ppt	< 4	< 4
PFTA	8 ppt	< 8	< 8
PFTrDA	7 ppt	< 7	< 7
PFUnA	2 ppt	< 2	< 2
lithium	9 µg/L	< 9	< 9

Fish Springs Well B facility 91058 · sample point W58 · groundwater

Compound	MRL	2024-02-27 SE1	2024-08-20 SE2
11Cl-PF3OUdS	5 ppt	< 5	< 5
4:2 FTS	3 ppt	< 3	< 3
6:2 FTS	5 ppt	< 5	< 5
8:2 FTS	5 ppt	< 5	< 5
9Cl-PF3ONS	2 ppt	< 2	< 2
ADONA	3 ppt	< 3	< 3
HFPO-DA	5 ppt	< 5	< 5
NEtFOSAA	5 ppt	< 5	< 5
NFDHA	20 ppt	< 20	< 20
NMeFOSAA	6 ppt	< 6	< 6
PFBA	5 ppt	< 5	< 5
PFBS	3 ppt	< 3	< 3
PFDA	3 ppt	< 3	< 3
PFDoA	3 ppt	< 3	< 3
PFEESA	3 ppt	< 3	< 3
PFHpA	3 ppt	< 3	< 3
PFHpS	3 ppt	< 3	< 3
PFHxA	3 ppt	< 3	< 3
PFHxS	3 ppt	< 3	< 3
PFMBA	3 ppt	< 3	< 3
PFMPA	4 ppt	< 4	< 4
PFNA	4 ppt	< 4	< 4
PFOA	4 ppt	< 4	< 4
PFOS	4 ppt	< 4	< 4
PFPeA	3 ppt	< 3	< 3
PFPeS	4 ppt	< 4	< 4
PFTA	8 ppt	< 8	< 8
PFTrDA	7 ppt	< 7	< 7
PFUnA	2 ppt	< 2	< 2
lithium	9 µg/L	< 9	< 9

Fish Springs Well C facility 91059 · sample point W59 · groundwater

Compound	MRL	2024-02-27 SE1	2024-08-20 SE2
11Cl-PF3OUdS	5 ppt	< 5	< 5
4:2 FTS	3 ppt	< 3	< 3
6:2 FTS	5 ppt	< 5	< 5
8:2 FTS	5 ppt	< 5	< 5
9Cl-PF3ONS	2 ppt	< 2	< 2
ADONA	3 ppt	< 3	< 3
HFPO-DA	5 ppt	< 5	< 5
NEtFOSAA	5 ppt	< 5	< 5
NFDHA	20 ppt	< 20	< 20
NMeFOSAA	6 ppt	< 6	< 6
PFBA	5 ppt	< 5	< 5
PFBS	3 ppt	< 3	< 3
PFDA	3 ppt	< 3	< 3
PFDoA	3 ppt	< 3	< 3
PFEESA	3 ppt	< 3	< 3
PFHpA	3 ppt	< 3	< 3
PFHpS	3 ppt	< 3	< 3
PFHxA	3 ppt	< 3	< 3
PFHxS	3 ppt	< 3	< 3
PFMBA	3 ppt	< 3	< 3
PFMPA	4 ppt	< 4	< 4
PFNA	4 ppt	< 4	< 4
PFOA	4 ppt	< 4	< 4
PFOS	4 ppt	< 4	< 4
PFPeA	3 ppt	< 3	< 3
PFPeS	4 ppt	< 4	< 4
PFTA	8 ppt	< 8	< 8
PFTrDA	7 ppt	< 7	< 7
PFUnA	2 ppt	< 2	< 2
lithium	9 µg/L	< 9	< 9

Fish Springs Well D facility 91060 · sample point W60 · groundwater

Compound	MRL	2024-02-27 SE1	2024-08-20 SE2
11Cl-PF3OUdS	5 ppt	< 5	< 5
4:2 FTS	3 ppt	< 3	< 3
6:2 FTS	5 ppt	< 5	< 5
8:2 FTS	5 ppt	< 5	< 5
9Cl-PF3ONS	2 ppt	< 2	< 2
ADONA	3 ppt	< 3	< 3
HFPO-DA	5 ppt	< 5	< 5
NEtFOSAA	5 ppt	< 5	< 5
NFDHA	20 ppt	< 20	< 20
NMeFOSAA	6 ppt	< 6	< 6
PFBA	5 ppt	< 5	< 5
PFBS	3 ppt	< 3	< 3
PFDA	3 ppt	< 3	< 3
PFDoA	3 ppt	< 3	< 3
PFEESA	3 ppt	< 3	< 3
PFHpA	3 ppt	< 3	< 3
PFHpS	3 ppt	< 3	< 3
PFHxA	3 ppt	< 3	< 3
PFHxS	3 ppt	< 3	< 3
PFMBA	3 ppt	< 3	< 3
PFMPA	4 ppt	< 4	< 4
PFNA	4 ppt	< 4	< 4
PFOA	4 ppt	< 4	< 4
PFOS	4 ppt	< 4	< 4
PFPeA	3 ppt	< 3	< 3
PFPeS	4 ppt	< 4	< 4
PFTA	8 ppt	< 8	< 8
PFTrDA	7 ppt	< 7	< 7
PFUnA	2 ppt	< 2	< 2
lithium	9 µg/L	< 9	< 9

Fish Springs Well E facility 91061 · sample point W61 · groundwater

Compound	MRL	2024-02-27 SE1	2024-08-20 SE2
11Cl-PF3OUdS	5 ppt	< 5	< 5
4:2 FTS	3 ppt	< 3	< 3
6:2 FTS	5 ppt	< 5	< 5
8:2 FTS	5 ppt	< 5	< 5
9Cl-PF3ONS	2 ppt	< 2	< 2
ADONA	3 ppt	< 3	< 3
HFPO-DA	5 ppt	< 5	< 5
NEtFOSAA	5 ppt	< 5	< 5
NFDHA	20 ppt	< 20	< 20
NMeFOSAA	6 ppt	< 6	< 6
PFBA	5 ppt	< 5	< 5
PFBS	3 ppt	< 3	< 3
PFDA	3 ppt	< 3	< 3
PFDoA	3 ppt	< 3	< 3
PFEESA	3 ppt	< 3	< 3
PFHpA	3 ppt	< 3	< 3
PFHpS	3 ppt	< 3	< 3
PFHxA	3 ppt	< 3	< 3
PFHxS	3 ppt	< 3	< 3
PFMBA	3 ppt	< 3	< 3
PFMPA	4 ppt	< 4	< 4
PFNA	4 ppt	< 4	< 4
PFOA	4 ppt	< 4	< 4
PFOS	4 ppt	< 4	< 4
PFPeA	3 ppt	< 3	< 3
PFPeS	4 ppt	< 4	< 4
PFTA	8 ppt	< 8	< 8
PFTrDA	7 ppt	< 7	< 7
PFUnA	2 ppt	< 2	< 2
lithium	9 µg/L	< 9	< 9

Galletti Well facility 91019 · sample point 19 · groundwater

Compound	MRL	2023-01-11 SE1	2023-03-28 SE1	2023-07-18 SE2
11Cl-PF3OUdS	5 ppt	–	< 5	< 5
4:2 FTS	3 ppt	–	< 3	< 3
6:2 FTS	5 ppt	–	< 5	< 5
8:2 FTS	5 ppt	–	< 5	< 5
9Cl-PF3ONS	2 ppt	–	< 2	< 2
ADONA	3 ppt	–	< 3	< 3
HFPO-DA	5 ppt	–	< 5	< 5
NEtFOSAA	5 ppt	< 5	–	< 5
NFDHA	20 ppt	–	< 20	< 20
NMeFOSAA	6 ppt	< 6	–	< 6
PFBA	5 ppt	–	< 5	< 5
PFBS	3 ppt	–	< 3	< 3
PFDA	3 ppt	–	< 3	< 3
PFDoA	3 ppt	–	< 3	< 3
PFEESA	3 ppt	–	< 3	< 3
PFHpA	3 ppt	–	< 3	< 3
PFHpS	3 ppt	–	< 3	< 3
PFHxA	3 ppt	–	< 3	< 3
PFHxS	3 ppt	–	< 3	< 3
PFMBA	3 ppt	–	< 3	< 3
PFMPA	4 ppt	–	< 4	< 4
PFNA	4 ppt	–	< 4	< 4
PFOA	4 ppt	–	< 4	< 4
PFOS	4 ppt	–	< 4	< 4
PFPeA	3 ppt	–	< 3	< 3
PFPeS	4 ppt	–	< 4	< 4
PFTA	8 ppt	< 8	–	< 8
PFTrDA	7 ppt	< 7	–	< 7
PFUnA	2 ppt	–	< 2	< 2
lithium	9 µg/L	< 9	–	< 9

Glen Hare Well facility 91028 · sample point 28 · groundwater

Compound	MRL	2023-01-17 SE1	2023-04-18 SE1	2023-07-19 SE2
PFHxS	3 ppt	–	3.7	3.1
11Cl-PF3OUdS	5 ppt	–	< 5	< 5
4:2 FTS	3 ppt	–	< 3	< 3
6:2 FTS	5 ppt	–	< 5	< 5
8:2 FTS	5 ppt	–	< 5	< 5
9Cl-PF3ONS	2 ppt	–	< 2	< 2
ADONA	3 ppt	–	< 3	< 3
HFPO-DA	5 ppt	–	< 5	< 5
NEtFOSAA	5 ppt	< 5	–	< 5
NFDHA	20 ppt	–	< 20	< 20
NMeFOSAA	6 ppt	< 6	–	< 6
PFBA	5 ppt	–	< 5	< 5
PFBS	3 ppt	–	< 3	< 3
PFDA	3 ppt	–	< 3	< 3
PFDoA	3 ppt	–	< 3	< 3
PFEESA	3 ppt	–	< 3	< 3
PFHpA	3 ppt	–	< 3	< 3
PFHpS	3 ppt	–	< 3	< 3
PFHxA	3 ppt	–	< 3	< 3
PFMBA	3 ppt	–	< 3	< 3
PFMPA	4 ppt	–	< 4	< 4
PFNA	4 ppt	–	< 4	< 4
PFOA	4 ppt	–	< 4	< 4
PFOS	4 ppt	–	< 4	< 4
PFPeA	3 ppt	–	< 3	< 3
PFPeS	4 ppt	–	< 4	< 4
PFTA	8 ppt	< 8	–	< 8
PFTrDA	7 ppt	< 7	–	< 7
PFUnA	2 ppt	–	< 2	< 2
lithium	9 µg/L	< 9	–	< 9

Glendale Truckee River SW & GW Plant facility 90013 · sample point TP13 · MX

Compound	MRL	2023-04-27 SE1	2023-07-10 SE2	2023-10-03 SE3	2024-04-29 SE4
11Cl-PF3OUdS	5 ppt	< 5	< 5	< 5	< 5
4:2 FTS	3 ppt	< 3	< 3	< 3	< 3
6:2 FTS	5 ppt	< 5	< 5	< 5	< 5
8:2 FTS	5 ppt	< 5	< 5	< 5	< 5
9Cl-PF3ONS	2 ppt	< 2	< 2	< 2	< 2
ADONA	3 ppt	< 3	< 3	< 3	< 3
HFPO-DA	5 ppt	< 5	< 5	< 5	< 5
NEtFOSAA	5 ppt	< 5	< 5	< 5	< 5
NFDHA	20 ppt	< 20	< 20	< 20	< 20
NMeFOSAA	6 ppt	< 6	< 6	< 6	< 6
PFBA	5 ppt	< 5	< 5	< 5	< 5
PFBS	3 ppt	< 3	< 3	< 3	< 3
PFDA	3 ppt	< 3	< 3	< 3	< 3
PFDoA	3 ppt	< 3	< 3	< 3	< 3
PFEESA	3 ppt	< 3	< 3	< 3	< 3
PFHpA	3 ppt	< 3	< 3	< 3	< 3
PFHpS	3 ppt	< 3	< 3	< 3	< 3
PFHxA	3 ppt	< 3	< 3	< 3	< 3
PFHxS	3 ppt	< 3	< 3	< 3	< 3
PFMBA	3 ppt	< 3	< 3	< 3	< 3
PFMPA	4 ppt	< 4	< 4	< 4	< 4
PFNA	4 ppt	< 4	< 4	< 4	< 4
PFOA	4 ppt	< 4	< 4	< 4	< 4
PFOS	4 ppt	< 4	< 4	< 4	< 4
PFPeA	3 ppt	< 3	< 3	< 3	< 3
PFPeS	4 ppt	< 4	< 4	< 4	< 4
PFTA	8 ppt	< 8	< 8	< 8	< 8
PFTrDA	7 ppt	< 7	< 7	< 7	< 7
PFUnA	2 ppt	< 2	< 2	< 2	< 2
lithium	9 µg/L	< 9	< 9	< 9	< 9

Greg Street Well facility 91010 · sample point 10 · groundwater

Compound	MRL	2023-02-14 SE1	2023-03-21 SE1	2023-08-29 SE2
11Cl-PF3OUdS	5 ppt	–	< 5	< 5
4:2 FTS	3 ppt	–	< 3	< 3
6:2 FTS	5 ppt	–	< 5	< 5
8:2 FTS	5 ppt	–	< 5	< 5
9Cl-PF3ONS	2 ppt	–	< 2	< 2
ADONA	3 ppt	–	< 3	< 3
HFPO-DA	5 ppt	–	< 5	< 5
NEtFOSAA	5 ppt	< 5	–	< 5
NFDHA	20 ppt	–	< 20	< 20
NMeFOSAA	6 ppt	< 6	–	< 6
PFBA	5 ppt	–	< 5	< 5
PFBS	3 ppt	–	< 3	< 3
PFDA	3 ppt	–	< 3	< 3
PFDoA	3 ppt	–	< 3	< 3
PFEESA	3 ppt	–	< 3	< 3
PFHpA	3 ppt	–	< 3	< 3
PFHpS	3 ppt	–	< 3	< 3
PFHxA	3 ppt	–	< 3	< 3
PFHxS	3 ppt	–	< 3	< 3
PFMBA	3 ppt	–	< 3	< 3
PFMPA	4 ppt	–	< 4	< 4
PFNA	4 ppt	–	< 4	< 4
PFOA	4 ppt	–	< 4	< 4
PFOS	4 ppt	–	< 4	< 4
PFPeA	3 ppt	–	< 3	< 3
PFPeS	4 ppt	–	< 4	< 4
PFTA	8 ppt	< 8	–	< 8
PFTrDA	7 ppt	< 7	–	< 7
PFUnA	2 ppt	–	< 2	< 2
lithium	9 µg/L	< 9	–	< 9

Hawkings Court Well facility 91036 · sample point W36 · groundwater

Compound	MRL	2023-06-13 SE1	2023-12-06 SE2
11Cl-PF3OUdS	5 ppt	< 5	< 5
4:2 FTS	3 ppt	< 3	< 3
6:2 FTS	5 ppt	< 5	< 5
8:2 FTS	5 ppt	< 5	< 5
9Cl-PF3ONS	2 ppt	< 2	< 2
ADONA	3 ppt	< 3	< 3
HFPO-DA	5 ppt	< 5	< 5
NEtFOSAA	5 ppt	< 5	< 5
NFDHA	20 ppt	< 20	< 20
NMeFOSAA	6 ppt	< 6	< 6
PFBA	5 ppt	< 5	< 5
PFBS	3 ppt	< 3	< 3
PFDA	3 ppt	< 3	< 3
PFDoA	3 ppt	< 3	< 3
PFEESA	3 ppt	< 3	< 3
PFHpA	3 ppt	< 3	< 3
PFHpS	3 ppt	< 3	< 3
PFHxA	3 ppt	< 3	< 3
PFHxS	3 ppt	< 3	< 3
PFMBA	3 ppt	< 3	< 3
PFMPA	4 ppt	< 4	< 4
PFNA	4 ppt	< 4	< 4
PFOA	4 ppt	< 4	< 4
PFOS	4 ppt	< 4	< 4
PFPeA	3 ppt	< 3	< 3
PFPeS	4 ppt	< 4	< 4
PFTA	8 ppt	< 8	< 8
PFTrDA	7 ppt	< 7	< 7
PFUnA	2 ppt	< 2	< 2
lithium	9 µg/L	< 9	< 9

Hidden Valley Well 5 facility 91049 · sample point W49 · groundwater

Compound	MRL	2024-02-06 SE1	2024-08-13 SE2
11Cl-PF3OUdS	5 ppt	< 5	< 5
4:2 FTS	3 ppt	< 3	< 3
6:2 FTS	5 ppt	< 5	< 5
8:2 FTS	5 ppt	< 5	< 5
9Cl-PF3ONS	2 ppt	< 2	< 2
ADONA	3 ppt	< 3	< 3
HFPO-DA	5 ppt	< 5	< 5
NEtFOSAA	5 ppt	< 5	< 5
NFDHA	20 ppt	< 20	< 20
NMeFOSAA	6 ppt	< 6	< 6
PFBA	5 ppt	< 5	< 5
PFBS	3 ppt	< 3	< 3
PFDA	3 ppt	< 3	< 3
PFDoA	3 ppt	< 3	< 3
PFEESA	3 ppt	< 3	< 3
PFHpA	3 ppt	< 3	< 3
PFHpS	3 ppt	< 3	< 3
PFHxA	3 ppt	< 3	< 3
PFHxS	3 ppt	< 3	< 3
PFMBA	3 ppt	< 3	< 3
PFMPA	4 ppt	< 4	< 4
PFNA	4 ppt	< 4	< 4
PFOA	4 ppt	< 4	< 4
PFOS	4 ppt	< 4	< 4
PFPeA	3 ppt	< 3	< 3
PFPeS	4 ppt	< 4	< 4
PFTA	8 ppt	< 8	< 8
PFTrDA	7 ppt	< 7	< 7
PFUnA	2 ppt	< 2	< 2
lithium	9 µg/L	< 9	< 9

Holcomb Well facility 91001 · sample point W01 · groundwater

Compound	MRL	2023-07-25 SE1	2024-01-09 SE2
11Cl-PF3OUdS	5 ppt	< 5	< 5
4:2 FTS	3 ppt	< 3	< 3
6:2 FTS	5 ppt	< 5	< 5
8:2 FTS	5 ppt	< 5	< 5
9Cl-PF3ONS	2 ppt	< 2	< 2
ADONA	3 ppt	< 3	< 3
HFPO-DA	5 ppt	< 5	< 5
NEtFOSAA	5 ppt	< 5	< 5
NFDHA	20 ppt	< 20	< 20
NMeFOSAA	6 ppt	< 6	< 6
PFBA	5 ppt	< 5	< 5
PFBS	3 ppt	< 3	< 3
PFDA	3 ppt	< 3	< 3
PFDoA	3 ppt	< 3	< 3
PFEESA	3 ppt	< 3	< 3
PFHpA	3 ppt	< 3	< 3
PFHpS	3 ppt	< 3	< 3
PFHxA	3 ppt	< 3	< 3
PFHxS	3 ppt	< 3	< 3
PFMBA	3 ppt	< 3	< 3
PFMPA	4 ppt	< 4	< 4
PFNA	4 ppt	< 4	< 4
PFOA	4 ppt	< 4	< 4
PFOS	4 ppt	< 4	< 4
PFPeA	3 ppt	< 3	< 3
PFPeS	4 ppt	< 4	< 4
PFTA	8 ppt	< 8	< 8
PFTrDA	7 ppt	< 7	< 7
PFUnA	2 ppt	< 2	< 2
lithium	9 µg/L	< 9	< 9

Huffaker Place Well facility 91037 · sample point 37 · groundwater

Compound	MRL	2023-01-18 SE1	2023-07-05 SE2
11Cl-PF3OUdS	5 ppt	< 5	< 5
4:2 FTS	3 ppt	< 3	< 3
6:2 FTS	5 ppt	< 5	< 5
8:2 FTS	5 ppt	< 5	< 5
9Cl-PF3ONS	2 ppt	< 2	< 2
ADONA	3 ppt	< 3	< 3
HFPO-DA	5 ppt	< 5	< 5
NEtFOSAA	5 ppt	< 5	< 5
NFDHA	20 ppt	< 20	< 20
NMeFOSAA	6 ppt	< 6	< 6
PFBA	5 ppt	< 5	< 5
PFBS	3 ppt	< 3	< 3
PFDA	3 ppt	< 3	< 3
PFDoA	3 ppt	< 3	< 3
PFEESA	3 ppt	< 3	< 3
PFHpA	3 ppt	< 3	< 3
PFHpS	3 ppt	< 3	< 3
PFHxA	3 ppt	< 3	< 3
PFHxS	3 ppt	< 3	< 3
PFMBA	3 ppt	< 3	< 3
PFMPA	4 ppt	< 4	< 4
PFNA	4 ppt	< 4	< 4
PFOA	4 ppt	< 4	< 4
PFOS	4 ppt	< 4	< 4
PFPeA	3 ppt	< 3	< 3
PFPeS	4 ppt	< 4	< 4
PFTA	8 ppt	< 8	< 8
PFTrDA	7 ppt	< 7	< 7
PFUnA	2 ppt	< 2	< 2
lithium	9 µg/L	< 9	< 9

Hunter Lake Well facility 91027 · sample point 27 · groundwater

Compound	MRL	2023-01-17 SE1	2023-07-05 SE2
PFHxS	3 ppt	< 3	3.8
11Cl-PF3OUdS	5 ppt	< 5	< 5
4:2 FTS	3 ppt	< 3	< 3
6:2 FTS	5 ppt	< 5	< 5
8:2 FTS	5 ppt	< 5	< 5
9Cl-PF3ONS	2 ppt	< 2	< 2
ADONA	3 ppt	< 3	< 3
HFPO-DA	5 ppt	< 5	< 5
NEtFOSAA	5 ppt	< 5	< 5
NFDHA	20 ppt	< 20	< 20
NMeFOSAA	6 ppt	< 6	< 6
PFBA	5 ppt	< 5	< 5
PFBS	3 ppt	< 3	< 3
PFDA	3 ppt	< 3	< 3
PFDoA	3 ppt	< 3	< 3
PFEESA	3 ppt	< 3	< 3
PFHpA	3 ppt	< 3	< 3
PFHpS	3 ppt	< 3	< 3
PFHxA	3 ppt	< 3	< 3
PFMBA	3 ppt	< 3	< 3
PFMPA	4 ppt	< 4	< 4
PFNA	4 ppt	< 4	< 4
PFOA	4 ppt	< 4	< 4
PFOS	4 ppt	< 4	< 4
PFPeA	3 ppt	< 3	< 3
PFPeS	4 ppt	< 4	< 4
PFTA	8 ppt	< 8	< 8
PFTrDA	7 ppt	< 7	< 7
PFUnA	2 ppt	< 2	< 2
lithium	9 µg/L	< 9	< 9

Innovation Well facility 91040 · sample point W40 · groundwater

Compound	MRL	2023-01-17 SE1	2023-07-05 SE2
11Cl-PF3OUdS	5 ppt	< 5	< 5
4:2 FTS	3 ppt	< 3	< 3
6:2 FTS	5 ppt	< 5	< 5
8:2 FTS	5 ppt	< 5	< 5
9Cl-PF3ONS	2 ppt	< 2	< 2
ADONA	3 ppt	< 3	< 3
HFPO-DA	5 ppt	< 5	< 5
NEtFOSAA	5 ppt	< 5	< 5
NFDHA	20 ppt	< 20	< 20
NMeFOSAA	6 ppt	< 6	< 6
PFBA	5 ppt	< 5	< 5
PFBS	3 ppt	< 3	< 3
PFDA	3 ppt	< 3	< 3
PFDoA	3 ppt	< 3	< 3
PFEESA	3 ppt	< 3	< 3
PFHpA	3 ppt	< 3	< 3
PFHpS	3 ppt	< 3	< 3
PFHxA	3 ppt	< 3	< 3
PFHxS	3 ppt	< 3	< 3
PFMBA	3 ppt	< 3	< 3
PFMPA	4 ppt	< 4	< 4
PFNA	4 ppt	< 4	< 4
PFOA	4 ppt	< 4	< 4
PFOS	4 ppt	< 4	< 4
PFPeA	3 ppt	< 3	< 3
PFPeS	4 ppt	< 4	< 4
PFTA	8 ppt	< 8	< 8
PFTrDA	7 ppt	< 7	< 7
PFUnA	2 ppt	< 2	< 2
lithium	9 µg/L	14	15.2

Kietzke Ln. Well PCE Stripper facility 90022 · sample point TP22 · groundwater

Compound	MRL	2023-10-16 SE1	2024-05-28 SE2
PFHxS	3 ppt	< 3	3.3
11Cl-PF3OUdS	5 ppt	< 5	< 5
4:2 FTS	3 ppt	< 3	< 3
6:2 FTS	5 ppt	< 5	< 5
8:2 FTS	5 ppt	< 5	< 5
9Cl-PF3ONS	2 ppt	< 2	< 2
ADONA	3 ppt	< 3	< 3
HFPO-DA	5 ppt	< 5	< 5
NEtFOSAA	5 ppt	< 5	< 5
NFDHA	20 ppt	< 20	< 20
NMeFOSAA	6 ppt	< 6	< 6
PFBA	5 ppt	< 5	< 5
PFBS	3 ppt	< 3	< 3
PFDA	3 ppt	< 3	< 3
PFDoA	3 ppt	< 3	< 3
PFEESA	3 ppt	< 3	< 3
PFHpA	3 ppt	< 3	< 3
PFHpS	3 ppt	< 3	< 3
PFHxA	3 ppt	< 3	< 3
PFMBA	3 ppt	< 3	< 3
PFMPA	4 ppt	< 4	< 4
PFNA	4 ppt	< 4	< 4
PFOA	4 ppt	< 4	< 4
PFOS	4 ppt	< 4	< 4
PFPeA	3 ppt	< 3	< 3
PFPeS	4 ppt	< 4	< 4
PFTA	8 ppt	< 8	< 8
PFTrDA	7 ppt	< 7	< 7
PFUnA	2 ppt	< 2	< 2
lithium	9 µg/L	10.1	< 9

Lakeside Dr. Well facility 91007 · sample point 07 · groundwater

Compound	MRL	2024-06-04 SE1	2024-12-04 SE2
11Cl-PF3OUdS	5 ppt	< 5	< 5
4:2 FTS	3 ppt	< 3	< 3
6:2 FTS	5 ppt	< 5	< 5
8:2 FTS	5 ppt	< 5	< 5
9Cl-PF3ONS	2 ppt	< 2	< 2
ADONA	3 ppt	< 3	< 3
HFPO-DA	5 ppt	< 5	< 5
NEtFOSAA	5 ppt	< 5	< 5
NFDHA	20 ppt	< 20	< 20
NMeFOSAA	6 ppt	< 6	< 6
PFBA	5 ppt	< 5	< 5
PFBS	3 ppt	< 3	< 3
PFDA	3 ppt	< 3	< 3
PFDoA	3 ppt	< 3	< 3
PFEESA	3 ppt	< 3	< 3
PFHpA	3 ppt	< 3	< 3
PFHpS	3 ppt	< 3	< 3
PFHxA	3 ppt	< 3	< 3
PFHxS	3 ppt	< 3	< 3
PFMBA	3 ppt	< 3	< 3
PFMPA	4 ppt	< 4	< 4
PFNA	4 ppt	< 4	< 4
PFOA	4 ppt	< 4	< 4
PFOS	4 ppt	< 4	< 4
PFPeA	3 ppt	< 3	< 3
PFPeS	4 ppt	< 4	< 4
PFTA	8 ppt	< 8	< 8
PFTrDA	7 ppt	< 7	< 7
PFUnA	2 ppt	< 2	< 2
lithium	9 µg/L	< 9	< 9

Lemmon Valley Well 5 facility 91047 · sample point W47 · groundwater

Compound	MRL	2023-04-18 SE1	2023-10-24 SE2
11Cl-PF3OUdS	5 ppt	< 5	< 5
4:2 FTS	3 ppt	< 3	< 3
6:2 FTS	5 ppt	< 5	< 5
8:2 FTS	5 ppt	< 5	< 5
9Cl-PF3ONS	2 ppt	< 2	< 2
ADONA	3 ppt	< 3	< 3
HFPO-DA	5 ppt	< 5	< 5
NEtFOSAA	5 ppt	< 5	< 5
NFDHA	20 ppt	< 20	< 20
NMeFOSAA	6 ppt	< 6	< 6
PFBA	5 ppt	< 5	< 5
PFBS	3 ppt	< 3	< 3
PFDA	3 ppt	< 3	< 3
PFDoA	3 ppt	< 3	< 3
PFEESA	3 ppt	< 3	< 3
PFHpA	3 ppt	< 3	< 3
PFHpS	3 ppt	< 3	< 3
PFHxA	3 ppt	< 3	< 3
PFHxS	3 ppt	< 3	< 3
PFMBA	3 ppt	< 3	< 3
PFMPA	4 ppt	< 4	< 4
PFNA	4 ppt	< 4	< 4
PFOA	4 ppt	< 4	< 4
PFOS	4 ppt	< 4	< 4
PFPeA	3 ppt	< 3	< 3
PFPeS	4 ppt	< 4	< 4
PFTA	8 ppt	< 8	< 8
PFTrDA	7 ppt	< 7	< 7
PFUnA	2 ppt	< 2	< 2
lithium	9 µg/L	< 9	< 9

Lemmon Valley Well 7 facility 91050 · sample point W50 · groundwater

Compound	MRL	2023-05-09 SE1	2023-11-14 SE2
PFBA	5 ppt	6.8	< 5
PFBS	3 ppt	4.5	< 3
PFHpA	3 ppt	3.9	< 3
PFHxA	3 ppt	12	4.3
PFHxS	3 ppt	15	6.9
PFOA	4 ppt	4.7	< 4
PFOS	4 ppt	20	6
PFPeA	3 ppt	10	3.4
11Cl-PF3OUdS	5 ppt	< 5	< 5
4:2 FTS	3 ppt	< 3	< 3
6:2 FTS	5 ppt	< 5	< 5
8:2 FTS	5 ppt	< 5	< 5
9Cl-PF3ONS	2 ppt	< 2	< 2
ADONA	3 ppt	< 3	< 3
HFPO-DA	5 ppt	< 5	< 5
NEtFOSAA	5 ppt	< 5	< 5
NFDHA	20 ppt	< 20	< 20
NMeFOSAA	6 ppt	< 6	< 6
PFDA	3 ppt	< 3	< 3
PFDoA	3 ppt	< 3	< 3
PFEESA	3 ppt	< 3	< 3
PFHpS	3 ppt	< 3	< 3
PFMBA	3 ppt	< 3	< 3
PFMPA	4 ppt	< 4	< 4
PFNA	4 ppt	< 4	< 4
PFPeS	4 ppt	< 4	< 4
PFTA	8 ppt	< 8	< 8
PFTrDA	7 ppt	< 7	< 7
PFUnA	2 ppt	< 2	< 2
lithium	9 µg/L	< 9	< 9

Lemmon Valley Well 9 facility 91056 · sample point W56 · groundwater

Compound	MRL	2023-04-18 SE1	2023-10-24 SE2
11Cl-PF3OUdS	5 ppt	< 5	< 5
4:2 FTS	3 ppt	< 3	< 3
6:2 FTS	5 ppt	< 5	< 5
8:2 FTS	5 ppt	< 5	< 5
9Cl-PF3ONS	2 ppt	< 2	< 2
ADONA	3 ppt	< 3	< 3
HFPO-DA	5 ppt	< 5	< 5
NEtFOSAA	5 ppt	< 5	< 5
NFDHA	20 ppt	< 20	< 20
NMeFOSAA	6 ppt	< 6	< 6
PFBA	5 ppt	< 5	< 5
PFBS	3 ppt	< 3	< 3
PFDA	3 ppt	< 3	< 3
PFDoA	3 ppt	< 3	< 3
PFEESA	3 ppt	< 3	< 3
PFHpA	3 ppt	< 3	< 3
PFHpS	3 ppt	< 3	< 3
PFHxA	3 ppt	< 3	< 3
PFHxS	3 ppt	< 3	< 3
PFMBA	3 ppt	< 3	< 3
PFMPA	4 ppt	< 4	< 4
PFNA	4 ppt	< 4	< 4
PFOA	4 ppt	< 4	< 4
PFOS	4 ppt	< 4	< 4
PFPeA	3 ppt	< 3	< 3
PFPeS	4 ppt	< 4	< 4
PFTA	8 ppt	< 8	< 8
PFTrDA	7 ppt	< 7	< 7
PFUnA	2 ppt	< 2	< 2
lithium	9 µg/L	< 9	< 9

Longley Ln. Well facility 91003 · sample point 03 · groundwater

Compound	MRL	2025-01-21 SE1	2025-07-01 SE2
11Cl-PF3OUdS	5 ppt	< 5	< 5
4:2 FTS	3 ppt	< 3	< 3
6:2 FTS	5 ppt	< 5	< 5
8:2 FTS	5 ppt	< 5	< 5
9Cl-PF3ONS	2 ppt	< 2	< 2
ADONA	3 ppt	< 3	< 3
HFPO-DA	5 ppt	< 5	< 5
NEtFOSAA	5 ppt	< 5	< 5
NFDHA	20 ppt	< 20	< 20
NMeFOSAA	6 ppt	< 6	< 6
PFBA	5 ppt	< 5	< 5
PFBS	3 ppt	< 3	< 3
PFDA	3 ppt	< 3	< 3
PFDoA	3 ppt	< 3	< 3
PFEESA	3 ppt	< 3	< 3
PFHpA	3 ppt	< 3	< 3
PFHpS	3 ppt	< 3	< 3
PFHxA	3 ppt	< 3	< 3
PFHxS	3 ppt	< 3	< 3
PFMBA	3 ppt	< 3	< 3
PFMPA	4 ppt	< 4	< 4
PFNA	4 ppt	< 4	< 4
PFOA	4 ppt	< 4	< 4
PFOS	4 ppt	< 4	< 4
PFPeA	3 ppt	< 3	< 3
PFPeS	4 ppt	< 4	< 4
PFTA	8 ppt	< 8	< 8
PFTrDA	7 ppt	< 7	< 7
PFUnA	2 ppt	< 2	< 2
lithium	9 µg/L	< 9	< 9

Morrill Ave. & High St. PCE Stripper facility 90021 · sample point TP21 · groundwater

Compound	MRL	2023-10-17 SE1	2024-05-28 SE2
PFHxS	3 ppt	3.2	< 3
11Cl-PF3OUdS	5 ppt	< 5	< 5
4:2 FTS	3 ppt	< 3	< 3
6:2 FTS	5 ppt	< 5	< 5
8:2 FTS	5 ppt	< 5	< 5
9Cl-PF3ONS	2 ppt	< 2	< 2
ADONA	3 ppt	< 3	< 3
HFPO-DA	5 ppt	< 5	< 5
NEtFOSAA	5 ppt	< 5	< 5
NFDHA	20 ppt	< 20	< 20
NMeFOSAA	6 ppt	< 6	< 6
PFBA	5 ppt	< 5	< 5
PFBS	3 ppt	< 3	< 3
PFDA	3 ppt	< 3	< 3
PFDoA	3 ppt	< 3	< 3
PFEESA	3 ppt	< 3	< 3
PFHpA	3 ppt	< 3	< 3
PFHpS	3 ppt	< 3	< 3
PFHxA	3 ppt	< 3	< 3
PFMBA	3 ppt	< 3	< 3
PFMPA	4 ppt	< 4	< 4
PFNA	4 ppt	< 4	< 4
PFOA	4 ppt	< 4	< 4
PFOS	4 ppt	< 4	< 4
PFPeA	3 ppt	< 3	< 3
PFPeS	4 ppt	< 4	< 4
PFTA	8 ppt	< 8	< 8
PFTrDA	7 ppt	< 7	< 7
PFUnA	2 ppt	< 2	< 2
lithium	9 µg/L	11.7	13.8

Mt Rose Treatment Plant facility 90081 · sample point TP81 · surface water

Compound	MRL	2023-09-11 SE1	2023-12-04 SE2	2024-03-14 SE3	2024-07-16 SE4
11Cl-PF3OUdS	5 ppt	< 5	< 5	< 5	< 5
4:2 FTS	3 ppt	< 3	< 3	< 3	< 3
6:2 FTS	5 ppt	< 5	< 5	< 5	< 5
8:2 FTS	5 ppt	< 5	< 5	< 5	< 5
9Cl-PF3ONS	2 ppt	< 2	< 2	< 2	< 2
ADONA	3 ppt	< 3	< 3	< 3	< 3
HFPO-DA	5 ppt	< 5	< 5	< 5	< 5
NEtFOSAA	5 ppt	< 5	< 5	< 5	< 5
NFDHA	20 ppt	< 20	< 20	< 20	< 20
NMeFOSAA	6 ppt	< 6	< 6	< 6	< 6
PFBA	5 ppt	< 5	< 5	< 5	< 5
PFBS	3 ppt	< 3	< 3	< 3	< 3
PFDA	3 ppt	< 3	< 3	< 3	< 3
PFDoA	3 ppt	< 3	< 3	< 3	< 3
PFEESA	3 ppt	< 3	< 3	< 3	< 3
PFHpA	3 ppt	< 3	< 3	< 3	< 3
PFHpS	3 ppt	< 3	< 3	< 3	< 3
PFHxA	3 ppt	< 3	< 3	< 3	< 3
PFHxS	3 ppt	< 3	< 3	< 3	< 3
PFMBA	3 ppt	< 3	< 3	< 3	< 3
PFMPA	4 ppt	< 4	< 4	< 4	< 4
PFNA	4 ppt	< 4	< 4	< 4	< 4
PFOA	4 ppt	< 4	< 4	< 4	< 4
PFOS	4 ppt	< 4	< 4	< 4	< 4
PFPeA	3 ppt	< 3	< 3	< 3	< 3
PFPeS	4 ppt	< 4	< 4	< 4	< 4
PFTA	8 ppt	< 8	< 8	< 8	< 8
PFTrDA	7 ppt	< 7	< 7	< 7	< 7
PFUnA	2 ppt	< 2	< 2	< 2	< 2
lithium	9 µg/L	< 9	< 9	< 9	< 9

Mt Rose Well 3 facility 91062 · sample point W62 · groundwater

Compound	MRL	2025-01-15 SE1	2025-07-01 SE2
11Cl-PF3OUdS	5 ppt	< 5	< 5
4:2 FTS	3 ppt	< 3	< 3
6:2 FTS	5 ppt	< 5	< 5
8:2 FTS	5 ppt	< 5	< 5
9Cl-PF3ONS	2 ppt	< 2	< 2
ADONA	3 ppt	< 3	< 3
HFPO-DA	5 ppt	< 5	< 5
NEtFOSAA	5 ppt	< 5	< 5
NFDHA	20 ppt	< 20	< 20
NMeFOSAA	6 ppt	< 6	< 6
PFBA	5 ppt	< 5	< 5
PFBS	3 ppt	< 3	< 3
PFDA	3 ppt	< 3	< 3
PFDoA	3 ppt	< 3	< 3
PFEESA	3 ppt	< 3	< 3
PFHpA	3 ppt	< 3	< 3
PFHpS	3 ppt	< 3	< 3
PFHxA	3 ppt	< 3	< 3
PFHxS	3 ppt	< 3	< 3
PFMBA	3 ppt	< 3	< 3
PFMPA	4 ppt	< 4	< 4
PFNA	4 ppt	< 4	< 4
PFOA	4 ppt	< 4	< 4
PFOS	4 ppt	< 4	< 4
PFPeA	3 ppt	< 3	< 3
PFPeS	4 ppt	< 4	< 4
PFTA	8 ppt	< 8	< 8
PFTrDA	7 ppt	< 7	< 7
PFUnA	2 ppt	< 2	< 2
lithium	9 µg/L	< 9	< 9

Mt Rose Well 5 facility 91063 · sample point W63 · groundwater

Compound	MRL	2025-01-21 SE1	2025-07-01 SE2
11Cl-PF3OUdS	5 ppt	< 5	< 5
4:2 FTS	3 ppt	< 3	< 3
6:2 FTS	5 ppt	< 5	< 5
8:2 FTS	5 ppt	< 5	< 5
9Cl-PF3ONS	2 ppt	< 2	< 2
ADONA	3 ppt	< 3	< 3
HFPO-DA	5 ppt	< 5	< 5
NEtFOSAA	5 ppt	< 5	< 5
NFDHA	20 ppt	< 20	< 20
NMeFOSAA	6 ppt	< 6	< 6
PFBA	5 ppt	< 5	< 5
PFBS	3 ppt	< 3	< 3
PFDA	3 ppt	< 3	< 3
PFDoA	3 ppt	< 3	< 3
PFEESA	3 ppt	< 3	< 3
PFHpA	3 ppt	< 3	< 3
PFHpS	3 ppt	< 3	< 3
PFHxA	3 ppt	< 3	< 3
PFHxS	3 ppt	< 3	< 3
PFMBA	3 ppt	< 3	< 3
PFMPA	4 ppt	< 4	< 4
PFNA	4 ppt	< 4	< 4
PFOA	4 ppt	< 4	< 4
PFOS	4 ppt	< 4	< 4
PFPeA	3 ppt	< 3	< 3
PFPeS	4 ppt	< 4	< 4
PFTA	8 ppt	< 8	< 8
PFTrDA	7 ppt	< 7	< 7
PFUnA	2 ppt	< 2	< 2
lithium	9 µg/L	< 9	< 9

Mt Rose Well 6 facility 91064 · sample point W64 · groundwater

Compound	MRL	2023-02-14 SE1	2023-03-21 SE1	2023-08-01 SE2
11Cl-PF3OUdS	5 ppt	–	< 5	< 5
4:2 FTS	3 ppt	–	< 3	< 3
6:2 FTS	5 ppt	–	< 5	< 5
8:2 FTS	5 ppt	–	< 5	< 5
9Cl-PF3ONS	2 ppt	–	< 2	< 2
ADONA	3 ppt	–	< 3	< 3
HFPO-DA	5 ppt	–	< 5	< 5
NEtFOSAA	5 ppt	< 5	–	< 5
NFDHA	20 ppt	–	< 20	< 20
NMeFOSAA	6 ppt	< 6	–	< 6
PFBA	5 ppt	–	< 5	< 5
PFBS	3 ppt	–	< 3	< 3
PFDA	3 ppt	–	< 3	< 3
PFDoA	3 ppt	–	< 3	< 3
PFEESA	3 ppt	–	< 3	< 3
PFHpA	3 ppt	–	< 3	< 3
PFHpS	3 ppt	–	< 3	< 3
PFHxA	3 ppt	–	< 3	< 3
PFHxS	3 ppt	–	< 3	< 3
PFMBA	3 ppt	–	< 3	< 3
PFMPA	4 ppt	–	< 4	< 4
PFNA	4 ppt	–	< 4	< 4
PFOA	4 ppt	–	< 4	< 4
PFOS	4 ppt	–	< 4	< 4
PFPeA	3 ppt	–	< 3	< 3
PFPeS	4 ppt	–	< 4	< 4
PFTA	8 ppt	< 8	–	< 8
PFTrDA	7 ppt	< 7	–	< 7
PFUnA	2 ppt	–	< 2	< 2
lithium	9 µg/L	< 9	–	< 9

Patriot Well facility 91002 · sample point 02 · groundwater

Compound	MRL	2023-01-18 SE1	2023-07-05 SE2
11Cl-PF3OUdS	5 ppt	< 5	< 5
4:2 FTS	3 ppt	< 3	< 3
6:2 FTS	5 ppt	< 5	< 5
8:2 FTS	5 ppt	< 5	< 5
9Cl-PF3ONS	2 ppt	< 2	< 2
ADONA	3 ppt	< 3	< 3
HFPO-DA	5 ppt	< 5	< 5
NEtFOSAA	5 ppt	< 5	< 5
NFDHA	20 ppt	< 20	< 20
NMeFOSAA	6 ppt	< 6	< 6
PFBA	5 ppt	< 5	< 5
PFBS	3 ppt	< 3	< 3
PFDA	3 ppt	< 3	< 3
PFDoA	3 ppt	< 3	< 3
PFEESA	3 ppt	< 3	< 3
PFHpA	3 ppt	< 3	< 3
PFHpS	3 ppt	< 3	< 3
PFHxA	3 ppt	< 3	< 3
PFHxS	3 ppt	< 3	< 3
PFMBA	3 ppt	< 3	< 3
PFMPA	4 ppt	< 4	< 4
PFNA	4 ppt	< 4	< 4
PFOA	4 ppt	< 4	< 4
PFOS	4 ppt	< 4	< 4
PFPeA	3 ppt	< 3	< 3
PFPeS	4 ppt	< 4	< 4
PFTA	8 ppt	< 8	< 8
PFTrDA	7 ppt	< 7	< 7
PFUnA	2 ppt	< 2	< 2
lithium	9 µg/L	< 9	< 9

Poplar St. Well 2 facility 91011 · sample point 11 · groundwater

Compound	MRL	2024-06-04 SE1	2024-12-04 SE2
11Cl-PF3OUdS	5 ppt	< 5	< 5
4:2 FTS	3 ppt	< 3	< 3
6:2 FTS	5 ppt	< 5	< 5
8:2 FTS	5 ppt	< 5	< 5
9Cl-PF3ONS	2 ppt	< 2	< 2
ADONA	3 ppt	< 3	< 3
HFPO-DA	5 ppt	< 5	< 5
NEtFOSAA	5 ppt	< 5	< 5
NFDHA	20 ppt	< 20	< 20
NMeFOSAA	6 ppt	< 6	< 6
PFBA	5 ppt	< 5	< 5
PFBS	3 ppt	< 3	< 3
PFDA	3 ppt	< 3	< 3
PFDoA	3 ppt	< 3	< 3
PFEESA	3 ppt	< 3	< 3
PFHpA	3 ppt	< 3	< 3
PFHpS	3 ppt	< 3	< 3
PFHxA	3 ppt	< 3	< 3
PFHxS	3 ppt	< 3	< 3
PFMBA	3 ppt	< 3	< 3
PFMPA	4 ppt	< 4	< 4
PFNA	4 ppt	< 4	< 4
PFOA	4 ppt	< 4	< 4
PFOS	4 ppt	< 4	< 4
PFPeA	3 ppt	< 3	< 3
PFPeS	4 ppt	< 4	< 4
PFTA	8 ppt	< 8	< 8
PFTrDA	7 ppt	< 7	< 7
PFUnA	2 ppt	< 2	< 2
lithium	9 µg/L	< 9	< 9

Reno High Well facility 91029 · sample point 29 · groundwater

Compound	MRL	2023-01-17 SE1	2023-07-18 SE2
PFHxS	3 ppt	3.4	5.1
11Cl-PF3OUdS	5 ppt	< 5	< 5
4:2 FTS	3 ppt	< 3	< 3
6:2 FTS	5 ppt	< 5	< 5
8:2 FTS	5 ppt	< 5	< 5
9Cl-PF3ONS	2 ppt	< 2	< 2
ADONA	3 ppt	< 3	< 3
HFPO-DA	5 ppt	< 5	< 5
NEtFOSAA	5 ppt	< 5	< 5
NFDHA	20 ppt	< 20	< 20
NMeFOSAA	6 ppt	< 6	< 6
PFBA	5 ppt	< 5	< 5
PFBS	3 ppt	< 3	< 3
PFDA	3 ppt	< 3	< 3
PFDoA	3 ppt	< 3	< 3
PFEESA	3 ppt	< 3	< 3
PFHpA	3 ppt	< 3	< 3
PFHpS	3 ppt	< 3	< 3
PFHxA	3 ppt	< 3	< 3
PFMBA	3 ppt	< 3	< 3
PFMPA	4 ppt	< 4	< 4
PFNA	4 ppt	< 4	< 4
PFOA	4 ppt	< 4	< 4
PFOS	4 ppt	< 4	< 4
PFPeA	3 ppt	< 3	< 3
PFPeS	4 ppt	< 4	< 4
PFTA	8 ppt	< 8	< 8
PFTrDA	7 ppt	< 7	< 7
PFUnA	2 ppt	< 2	< 2
lithium	9 µg/L	< 9	< 9

S. Virginia St. Well facility 91004 · sample point 04 · groundwater

Compound	MRL	2023-01-17 SE1	2023-07-12 SE2
11Cl-PF3OUdS	5 ppt	< 5	< 5
4:2 FTS	3 ppt	< 3	< 3
6:2 FTS	5 ppt	< 5	< 5
8:2 FTS	5 ppt	< 5	< 5
9Cl-PF3ONS	2 ppt	< 2	< 2
ADONA	3 ppt	< 3	< 3
HFPO-DA	5 ppt	< 5	< 5
NEtFOSAA	5 ppt	< 5	< 5
NFDHA	20 ppt	< 20	< 20
NMeFOSAA	6 ppt	< 6	< 6
PFBA	5 ppt	< 5	< 5
PFBS	3 ppt	< 3	< 3
PFDA	3 ppt	< 3	< 3
PFDoA	3 ppt	< 3	< 3
PFEESA	3 ppt	< 3	< 3
PFHpA	3 ppt	< 3	< 3
PFHpS	3 ppt	< 3	< 3
PFHxA	3 ppt	< 3	< 3
PFHxS	3 ppt	< 3	< 3
PFMBA	3 ppt	< 3	< 3
PFMPA	4 ppt	< 4	< 4
PFNA	4 ppt	< 4	< 4
PFOA	4 ppt	< 4	< 4
PFOS	4 ppt	< 4	< 4
PFPeA	3 ppt	< 3	< 3
PFPeS	4 ppt	< 4	< 4
PFTA	8 ppt	< 8	< 8
PFTrDA	7 ppt	< 7	< 7
PFUnA	2 ppt	< 2	< 2
lithium	9 µg/L	< 9	9.82

STMGID Well 1 facility 91067 · sample point W67 · groundwater

Compound	MRL	2023-04-18 SE1	2023-10-03 SE2
11Cl-PF3OUdS	5 ppt	< 5	< 5
4:2 FTS	3 ppt	< 3	< 3
6:2 FTS	5 ppt	< 5	< 5
8:2 FTS	5 ppt	< 5	< 5
9Cl-PF3ONS	2 ppt	< 2	< 2
ADONA	3 ppt	< 3	< 3
HFPO-DA	5 ppt	< 5	< 5
NEtFOSAA	5 ppt	< 5	< 5
NFDHA	20 ppt	< 20	< 20
NMeFOSAA	6 ppt	< 6	< 6
PFBA	5 ppt	< 5	< 5
PFBS	3 ppt	< 3	< 3
PFDA	3 ppt	< 3	< 3
PFDoA	3 ppt	< 3	< 3
PFEESA	3 ppt	< 3	< 3
PFHpA	3 ppt	< 3	< 3
PFHpS	3 ppt	< 3	< 3
PFHxA	3 ppt	< 3	< 3
PFHxS	3 ppt	< 3	< 3
PFMBA	3 ppt	< 3	< 3
PFMPA	4 ppt	< 4	< 4
PFNA	4 ppt	< 4	< 4
PFOA	4 ppt	< 4	< 4
PFOS	4 ppt	< 4	< 4
PFPeA	3 ppt	< 3	< 3
PFPeS	4 ppt	< 4	< 4
PFTA	8 ppt	< 8	< 8
PFTrDA	7 ppt	< 7	< 7
PFUnA	2 ppt	< 2	< 2
lithium	9 µg/L	< 9	< 9

STMGID Well 11 facility 91073 · sample point W73 · groundwater

Compound	MRL	2023-07-26 SE1	2024-01-09 SE2
11Cl-PF3OUdS	5 ppt	< 5	< 5
4:2 FTS	3 ppt	< 3	< 3
6:2 FTS	5 ppt	< 5	< 5
8:2 FTS	5 ppt	< 5	< 5
9Cl-PF3ONS	2 ppt	< 2	< 2
ADONA	3 ppt	< 3	< 3
HFPO-DA	5 ppt	< 5	< 5
NEtFOSAA	5 ppt	< 5	< 5
NFDHA	20 ppt	< 20	< 20
NMeFOSAA	6 ppt	< 6	< 6
PFBA	5 ppt	< 5	< 5
PFBS	3 ppt	< 3	< 3
PFDA	3 ppt	< 3	< 3
PFDoA	3 ppt	< 3	< 3
PFEESA	3 ppt	< 3	< 3
PFHpA	3 ppt	< 3	< 3
PFHpS	3 ppt	< 3	< 3
PFHxA	3 ppt	< 3	< 3
PFHxS	3 ppt	< 3	< 3
PFMBA	3 ppt	< 3	< 3
PFMPA	4 ppt	< 4	< 4
PFNA	4 ppt	< 4	< 4
PFOA	4 ppt	< 4	< 4
PFOS	4 ppt	< 4	< 4
PFPeA	3 ppt	< 3	< 3
PFPeS	4 ppt	< 4	< 4
PFTA	8 ppt	< 8	< 8
PFTrDA	7 ppt	< 7	< 7
PFUnA	2 ppt	< 2	< 2
lithium	9 µg/L	< 9	< 9

STMGID Well 12 facility 91074 · sample point W74 · groundwater

Compound	MRL	2023-01-24 SE1	2023-07-05 SE2
11Cl-PF3OUdS	5 ppt	< 5	< 5
4:2 FTS	3 ppt	< 3	< 3
6:2 FTS	5 ppt	< 5	< 5
8:2 FTS	5 ppt	< 5	< 5
9Cl-PF3ONS	2 ppt	< 2	< 2
ADONA	3 ppt	< 3	< 3
HFPO-DA	5 ppt	< 5	< 5
NEtFOSAA	5 ppt	< 5	< 5
NFDHA	20 ppt	< 20	< 20
NMeFOSAA	6 ppt	< 6	< 6
PFBA	5 ppt	< 5	< 5
PFBS	3 ppt	< 3	< 3
PFDA	3 ppt	< 3	< 3
PFDoA	3 ppt	< 3	< 3
PFEESA	3 ppt	< 3	< 3
PFHpA	3 ppt	< 3	< 3
PFHpS	3 ppt	< 3	< 3
PFHxA	3 ppt	< 3	< 3
PFHxS	3 ppt	< 3	< 3
PFMBA	3 ppt	< 3	< 3
PFMPA	4 ppt	< 4	< 4
PFNA	4 ppt	< 4	< 4
PFOA	4 ppt	< 4	< 4
PFOS	4 ppt	< 4	< 4
PFPeA	3 ppt	< 3	< 3
PFPeS	4 ppt	< 4	< 4
PFTA	8 ppt	< 8	< 8
PFTrDA	7 ppt	< 7	< 7
PFUnA	2 ppt	< 2	< 2
lithium	9 µg/L	< 9	< 9

STMGID Well 2 facility 91068 · sample point W68 · groundwater

Compound	MRL	2025-02-26 SE1	2025-08-05 SE2
11Cl-PF3OUdS	5 ppt	< 5	< 5
4:2 FTS	3 ppt	< 3	< 3
6:2 FTS	5 ppt	< 5	< 5
8:2 FTS	5 ppt	< 5	< 5
9Cl-PF3ONS	2 ppt	< 2	< 2
ADONA	3 ppt	< 3	< 3
HFPO-DA	5 ppt	< 5	< 5
NEtFOSAA	5 ppt	< 5	< 5
NFDHA	20 ppt	< 20	< 20
NMeFOSAA	6 ppt	< 6	< 6
PFBA	5 ppt	< 5	< 5
PFBS	3 ppt	< 3	< 3
PFDA	3 ppt	< 3	< 3
PFDoA	3 ppt	< 3	< 3
PFEESA	3 ppt	< 3	< 3
PFHpA	3 ppt	< 3	< 3
PFHpS	3 ppt	< 3	< 3
PFHxA	3 ppt	< 3	< 3
PFHxS	3 ppt	< 3	< 3
PFMBA	3 ppt	< 3	< 3
PFMPA	4 ppt	< 4	< 4
PFNA	4 ppt	< 4	< 4
PFOA	4 ppt	< 4	< 4
PFOS	4 ppt	< 4	< 4
PFPeA	3 ppt	< 3	< 3
PFPeS	4 ppt	< 4	< 4
PFTA	8 ppt	< 8	< 8
PFTrDA	7 ppt	< 7	< 7
PFUnA	2 ppt	< 2	< 2
lithium	9 µg/L	86.7	100

STMGID Well 3 facility 91069 · sample point W69 · groundwater

Compound	MRL	2025-03-17 SE1	2025-09-02 SE2
11Cl-PF3OUdS	5 ppt	< 5	< 5
4:2 FTS	3 ppt	< 3	< 3
6:2 FTS	5 ppt	< 5	< 5
8:2 FTS	5 ppt	< 5	< 5
9Cl-PF3ONS	2 ppt	< 2	< 2
ADONA	3 ppt	< 3	< 3
HFPO-DA	5 ppt	< 5	< 5
NEtFOSAA	5 ppt	< 5	< 5
NFDHA	20 ppt	< 20	< 20
NMeFOSAA	6 ppt	< 6	< 6
PFBA	5 ppt	< 5	< 5
PFBS	3 ppt	< 3	< 3
PFDA	3 ppt	< 3	< 3
PFDoA	3 ppt	< 3	< 3
PFEESA	3 ppt	< 3	< 3
PFHpA	3 ppt	< 3	< 3
PFHpS	3 ppt	< 3	< 3
PFHxA	3 ppt	< 3	< 3
PFHxS	3 ppt	< 3	< 3
PFMBA	3 ppt	< 3	< 3
PFMPA	4 ppt	< 4	< 4
PFNA	4 ppt	< 4	< 4
PFOA	4 ppt	< 4	< 4
PFOS	4 ppt	< 4	< 4
PFPeA	3 ppt	< 3	< 3
PFPeS	4 ppt	< 4	< 4
PFTA	8 ppt	< 8	< 8
PFTrDA	7 ppt	< 7	< 7
PFUnA	2 ppt	< 2	< 2
lithium	9 µg/L	< 9	9.71

STMGID Well 4 facility 91070 · sample point W70 · groundwater

Compound	MRL	2023-02-14 SE1	2023-03-21 SE1	2023-08-01 SE2
11Cl-PF3OUdS	5 ppt	–	< 5	< 5
4:2 FTS	3 ppt	–	< 3	< 3
6:2 FTS	5 ppt	–	< 5	< 5
8:2 FTS	5 ppt	–	< 5	< 5
9Cl-PF3ONS	2 ppt	–	< 2	< 2
ADONA	3 ppt	–	< 3	< 3
HFPO-DA	5 ppt	–	< 5	< 5
NEtFOSAA	5 ppt	< 5	–	< 5
NFDHA	20 ppt	–	< 20	< 20
NMeFOSAA	6 ppt	< 6	–	< 6
PFBA	5 ppt	–	< 5	< 5
PFBS	3 ppt	–	< 3	< 3
PFDA	3 ppt	–	< 3	< 3
PFDoA	3 ppt	–	< 3	< 3
PFEESA	3 ppt	–	< 3	< 3
PFHpA	3 ppt	–	< 3	< 3
PFHpS	3 ppt	–	< 3	< 3
PFHxA	3 ppt	–	< 3	< 3
PFHxS	3 ppt	–	< 3	< 3
PFMBA	3 ppt	–	< 3	< 3
PFMPA	4 ppt	–	< 4	< 4
PFNA	4 ppt	–	< 4	< 4
PFOA	4 ppt	–	< 4	< 4
PFOS	4 ppt	–	< 4	< 4
PFPeA	3 ppt	–	< 3	< 3
PFPeS	4 ppt	–	< 4	< 4
PFTA	8 ppt	< 8	–	< 8
PFTrDA	7 ppt	< 7	–	< 7
PFUnA	2 ppt	–	< 2	< 2
lithium	9 µg/L	17	–	18.2

STMGID Well 5 facility 91071 · sample point W71 · groundwater

Compound	MRL	2023-01-24 SE1	2023-04-18 SE1	2023-07-05 SE2
11Cl-PF3OUdS	5 ppt	–	< 5	< 5
4:2 FTS	3 ppt	–	< 3	< 3
6:2 FTS	5 ppt	–	< 5	< 5
8:2 FTS	5 ppt	–	< 5	< 5
9Cl-PF3ONS	2 ppt	–	< 2	< 2
ADONA	3 ppt	–	< 3	< 3
HFPO-DA	5 ppt	–	< 5	< 5
NEtFOSAA	5 ppt	< 5	–	< 5
NFDHA	20 ppt	–	< 20	< 20
NMeFOSAA	6 ppt	< 6	–	< 6
PFBA	5 ppt	–	< 5	< 5
PFBS	3 ppt	–	< 3	< 3
PFDA	3 ppt	–	< 3	< 3
PFDoA	3 ppt	–	< 3	< 3
PFEESA	3 ppt	–	< 3	< 3
PFHpA	3 ppt	–	< 3	< 3
PFHpS	3 ppt	–	< 3	< 3
PFHxA	3 ppt	–	< 3	< 3
PFHxS	3 ppt	–	< 3	< 3
PFMBA	3 ppt	–	< 3	< 3
PFMPA	4 ppt	–	< 4	< 4
PFNA	4 ppt	–	< 4	< 4
PFOA	4 ppt	–	< 4	< 4
PFOS	4 ppt	–	< 4	< 4
PFPeA	3 ppt	–	< 3	< 3
PFPeS	4 ppt	–	< 4	< 4
PFTA	8 ppt	< 8	–	< 8
PFTrDA	7 ppt	< 7	–	< 7
PFUnA	2 ppt	–	< 2	< 2
lithium	9 µg/L	< 9	–	< 9

STMGID Well 6 facility 91072 · sample point W72 · groundwater

Compound	MRL	2023-02-14 SE1	2023-03-21 SE1	2023-08-01 SE2
11Cl-PF3OUdS	5 ppt	–	< 5	< 5
4:2 FTS	3 ppt	–	< 3	< 3
6:2 FTS	5 ppt	–	< 5	< 5
8:2 FTS	5 ppt	–	< 5	< 5
9Cl-PF3ONS	2 ppt	–	< 2	< 2
ADONA	3 ppt	–	< 3	< 3
HFPO-DA	5 ppt	–	< 5	< 5
NEtFOSAA	5 ppt	< 5	–	< 5
NFDHA	20 ppt	–	< 20	< 20
NMeFOSAA	6 ppt	< 6	–	< 6
PFBA	5 ppt	–	< 5	< 5
PFBS	3 ppt	–	< 3	< 3
PFDA	3 ppt	–	< 3	< 3
PFDoA	3 ppt	–	< 3	< 3
PFEESA	3 ppt	–	< 3	< 3
PFHpA	3 ppt	–	< 3	< 3
PFHpS	3 ppt	–	< 3	< 3
PFHxA	3 ppt	–	< 3	< 3
PFHxS	3 ppt	–	< 3	< 3
PFMBA	3 ppt	–	< 3	< 3
PFMPA	4 ppt	–	< 4	< 4
PFNA	4 ppt	–	< 4	< 4
PFOA	4 ppt	–	< 4	< 4
PFOS	4 ppt	–	< 4	< 4
PFPeA	3 ppt	–	< 3	< 3
PFPeS	4 ppt	–	< 4	< 4
PFTA	8 ppt	< 8	–	< 8
PFTrDA	7 ppt	< 7	–	< 7
PFUnA	2 ppt	–	< 2	< 2
lithium	9 µg/L	< 9	–	< 9

STMGID Well 7 facility 91080 · sample point W80 · groundwater

Compound	MRL	2025-02-19 SE1	2025-08-05 SE2
11Cl-PF3OUdS	5 ppt	< 5	< 5
4:2 FTS	3 ppt	< 3	< 3
6:2 FTS	5 ppt	< 5	< 5
8:2 FTS	5 ppt	< 5	< 5
9Cl-PF3ONS	2 ppt	< 2	< 2
ADONA	3 ppt	< 3	< 3
HFPO-DA	5 ppt	< 5	< 5
NEtFOSAA	5 ppt	< 5	< 5
NFDHA	20 ppt	< 20	< 20
NMeFOSAA	6 ppt	< 6	< 6
PFBA	5 ppt	< 5	< 5
PFBS	3 ppt	< 3	< 3
PFDA	3 ppt	< 3	< 3
PFDoA	3 ppt	< 3	< 3
PFEESA	3 ppt	< 3	< 3
PFHpA	3 ppt	< 3	< 3
PFHpS	3 ppt	< 3	< 3
PFHxA	3 ppt	< 3	< 3
PFHxS	3 ppt	< 3	< 3
PFMBA	3 ppt	< 3	< 3
PFMPA	4 ppt	< 4	< 4
PFNA	4 ppt	< 4	< 4
PFOA	4 ppt	< 4	< 4
PFOS	4 ppt	< 4	< 4
PFPeA	3 ppt	< 3	< 3
PFPeS	4 ppt	< 4	< 4
PFTA	8 ppt	< 8	< 8
PFTrDA	7 ppt	< 7	< 7
PFUnA	2 ppt	< 2	< 2
lithium	9 µg/L	< 9	< 9

Sierra Plaza Well facility 91005 · sample point 05 · groundwater

Compound	MRL	2023-01-17 SE1	2023-07-12 SE2
11Cl-PF3OUdS	5 ppt	< 5	< 5
4:2 FTS	3 ppt	< 3	< 3
6:2 FTS	5 ppt	< 5	< 5
8:2 FTS	5 ppt	< 5	< 5
9Cl-PF3ONS	2 ppt	< 2	< 2
ADONA	3 ppt	< 3	< 3
HFPO-DA	5 ppt	< 5	< 5
NEtFOSAA	5 ppt	< 5	< 5
NFDHA	20 ppt	< 20	< 20
NMeFOSAA	6 ppt	< 6	< 6
PFBA	5 ppt	< 5	< 5
PFBS	3 ppt	< 3	< 3
PFDA	3 ppt	< 3	< 3
PFDoA	3 ppt	< 3	< 3
PFEESA	3 ppt	< 3	< 3
PFHpA	3 ppt	< 3	< 3
PFHpS	3 ppt	< 3	< 3
PFHxA	3 ppt	< 3	< 3
PFHxS	3 ppt	< 3	< 3
PFMBA	3 ppt	< 3	< 3
PFMPA	4 ppt	< 4	< 4
PFNA	4 ppt	< 4	< 4
PFOA	4 ppt	< 4	< 4
PFOS	4 ppt	< 4	< 4
PFPeA	3 ppt	< 3	< 3
PFPeS	4 ppt	< 4	< 4
PFTA	8 ppt	< 8	< 8
PFTrDA	7 ppt	< 7	< 7
PFUnA	2 ppt	< 2	< 2
lithium	9 µg/L	12	< 9

Silver Knolls Well facility 91034 · sample point 34 · groundwater

Compound	MRL	2023-04-18 SE1	2023-10-18 SE2
11Cl-PF3OUdS	5 ppt	< 5	< 5
4:2 FTS	3 ppt	< 3	< 3
6:2 FTS	5 ppt	< 5	< 5
8:2 FTS	5 ppt	< 5	< 5
9Cl-PF3ONS	2 ppt	< 2	< 2
ADONA	3 ppt	< 3	< 3
HFPO-DA	5 ppt	< 5	< 5
NEtFOSAA	5 ppt	< 5	< 5
NFDHA	20 ppt	< 20	< 20
NMeFOSAA	6 ppt	< 6	< 6
PFBA	5 ppt	< 5	< 5
PFBS	3 ppt	< 3	< 3
PFDA	3 ppt	< 3	< 3
PFDoA	3 ppt	< 3	< 3
PFEESA	3 ppt	< 3	< 3
PFHpA	3 ppt	< 3	< 3
PFHpS	3 ppt	< 3	< 3
PFHxA	3 ppt	< 3	< 3
PFHxS	3 ppt	< 3	< 3
PFMBA	3 ppt	< 3	< 3
PFMPA	4 ppt	< 4	< 4
PFNA	4 ppt	< 4	< 4
PFOA	4 ppt	< 4	< 4
PFOS	4 ppt	< 4	< 4
PFPeA	3 ppt	< 3	< 3
PFPeS	4 ppt	< 4	< 4
PFTA	8 ppt	< 8	< 8
PFTrDA	7 ppt	< 7	< 7
PFUnA	2 ppt	< 2	< 2
lithium	9 µg/L	< 9	< 9

Silver Lake Replacement Well facility 91033 · sample point W33 · groundwater

Compound	MRL	2023-07-26 SE1	2024-01-09 SE2
11Cl-PF3OUdS	5 ppt	< 5	< 5
4:2 FTS	3 ppt	< 3	< 3
6:2 FTS	5 ppt	< 5	< 5
8:2 FTS	5 ppt	< 5	< 5
9Cl-PF3ONS	2 ppt	< 2	< 2
ADONA	3 ppt	< 3	< 3
HFPO-DA	5 ppt	< 5	< 5
NEtFOSAA	5 ppt	< 5	< 5
NFDHA	20 ppt	< 20	< 20
NMeFOSAA	6 ppt	< 6	< 6
PFBA	5 ppt	< 5	< 5
PFBS	3 ppt	< 3	< 3
PFDA	3 ppt	< 3	< 3
PFDoA	3 ppt	< 3	< 3
PFEESA	3 ppt	< 3	< 3
PFHpA	3 ppt	< 3	< 3
PFHpS	3 ppt	< 3	< 3
PFHxA	3 ppt	< 3	< 3
PFHxS	3 ppt	< 3	< 3
PFMBA	3 ppt	< 3	< 3
PFMPA	4 ppt	< 4	< 4
PFNA	4 ppt	< 4	< 4
PFOA	4 ppt	< 4	< 4
PFOS	4 ppt	< 4	< 4
PFPeA	3 ppt	< 3	< 3
PFPeS	4 ppt	< 4	< 4
PFTA	8 ppt	< 8	< 8
PFTrDA	7 ppt	< 7	< 7
PFUnA	2 ppt	< 2	< 2
lithium	9 µg/L	< 9	< 9

Sparks Ave. Well facility 91013 · sample point 13 · groundwater

Compound	MRL	2025-01-14 SE1	2025-07-10 SE2
11Cl-PF3OUdS	5 ppt	< 5	< 5
4:2 FTS	3 ppt	< 3	< 3
6:2 FTS	5 ppt	< 5	< 5
8:2 FTS	5 ppt	< 5	< 5
9Cl-PF3ONS	2 ppt	< 2	< 2
ADONA	3 ppt	< 3	< 3
HFPO-DA	5 ppt	< 5	< 5
NEtFOSAA	5 ppt	< 5	< 5
NFDHA	20 ppt	< 20	< 20
NMeFOSAA	6 ppt	< 6	< 6
PFBA	5 ppt	< 5	< 5
PFBS	3 ppt	< 3	< 3
PFDA	3 ppt	< 3	< 3
PFDoA	3 ppt	< 3	< 3
PFEESA	3 ppt	< 3	< 3
PFHpA	3 ppt	< 3	< 3
PFHpS	3 ppt	< 3	< 3
PFHxA	3 ppt	< 3	< 3
PFHxS	3 ppt	< 3	< 3
PFMBA	3 ppt	< 3	< 3
PFMPA	4 ppt	< 4	< 4
PFNA	4 ppt	< 4	< 4
PFOA	4 ppt	< 4	< 4
PFOS	4 ppt	< 4	< 4
PFPeA	3 ppt	< 3	< 3
PFPeS	4 ppt	< 4	< 4
PFTA	8 ppt	< 8	< 8
PFTrDA	7 ppt	< 7	< 7
PFUnA	2 ppt	< 2	< 2
lithium	9 µg/L	< 9	< 9

Spring Creek Well 2 facility 91075 · sample point W75 · groundwater

Compound	MRL	2023-08-29 SE1	2024-02-21 SE2
PFBS	3 ppt	5.7	4.2
PFHxA	3 ppt	9.1	6.1
PFHxS	3 ppt	4.9	4.1
PFPeA	3 ppt	13	11
11Cl-PF3OUdS	5 ppt	< 5	< 5
4:2 FTS	3 ppt	< 3	< 3
6:2 FTS	5 ppt	< 5	< 5
8:2 FTS	5 ppt	< 5	< 5
9Cl-PF3ONS	2 ppt	< 2	< 2
ADONA	3 ppt	< 3	< 3
HFPO-DA	5 ppt	< 5	< 5
NEtFOSAA	5 ppt	< 5	< 5
NFDHA	20 ppt	< 20	< 20
NMeFOSAA	6 ppt	< 6	< 6
PFBA	5 ppt	< 5	< 5
PFDA	3 ppt	< 3	< 3
PFDoA	3 ppt	< 3	< 3
PFEESA	3 ppt	< 3	< 3
PFHpA	3 ppt	< 3	< 3
PFHpS	3 ppt	< 3	< 3
PFMBA	3 ppt	< 3	< 3
PFMPA	4 ppt	< 4	< 4
PFNA	4 ppt	< 4	< 4
PFOA	4 ppt	< 4	< 4
PFOS	4 ppt	< 4	< 4
PFPeS	4 ppt	< 4	< 4
PFTA	8 ppt	< 8	< 8
PFTrDA	7 ppt	< 7	< 7
PFUnA	2 ppt	< 2	< 2
lithium	9 µg/L	< 9	< 9

Spring Creek Well 6 facility 91077 · sample point W77 · groundwater

Compound	MRL	2023-09-20 SE1	2024-03-13 SE2
11Cl-PF3OUdS	5 ppt	< 5	< 5
4:2 FTS	3 ppt	< 3	< 3
6:2 FTS	5 ppt	< 5	< 5
8:2 FTS	5 ppt	< 5	< 5
9Cl-PF3ONS	2 ppt	< 2	< 2
ADONA	3 ppt	< 3	< 3
HFPO-DA	5 ppt	< 5	< 5
NEtFOSAA	5 ppt	< 5	< 5
NFDHA	20 ppt	< 20	< 20
NMeFOSAA	6 ppt	< 6	< 6
PFBA	5 ppt	< 5	< 5
PFBS	3 ppt	< 3	< 3
PFDA	3 ppt	< 3	< 3
PFDoA	3 ppt	< 3	< 3
PFEESA	3 ppt	< 3	< 3
PFHpA	3 ppt	< 3	< 3
PFHpS	3 ppt	< 3	< 3
PFHxA	3 ppt	< 3	< 3
PFHxS	3 ppt	< 3	< 3
PFMBA	3 ppt	< 3	< 3
PFMPA	4 ppt	< 4	< 4
PFNA	4 ppt	< 4	< 4
PFOA	4 ppt	< 4	< 4
PFOS	4 ppt	< 4	< 4
PFPeA	3 ppt	< 3	< 3
PFPeS	4 ppt	< 4	< 4
PFTA	8 ppt	< 8	< 8
PFTrDA	7 ppt	< 7	< 7
PFUnA	2 ppt	< 2	< 2
lithium	9 µg/L	< 9	< 9

Spring Creek Well 7 pH Adj facility 90082 · sample point TP82 · groundwater

Compound	MRL	2024-01-10 SE1	2024-07-16 SE2
11Cl-PF3OUdS	5 ppt	< 5	< 5
4:2 FTS	3 ppt	< 3	< 3
6:2 FTS	5 ppt	< 5	< 5
8:2 FTS	5 ppt	< 5	< 5
9Cl-PF3ONS	2 ppt	< 2	< 2
ADONA	3 ppt	< 3	< 3
HFPO-DA	5 ppt	< 5	< 5
NEtFOSAA	5 ppt	< 5	< 5
NFDHA	20 ppt	< 20	< 20
NMeFOSAA	6 ppt	< 6	< 6
PFBA	5 ppt	< 5	< 5
PFBS	3 ppt	< 3	< 3
PFDA	3 ppt	< 3	< 3
PFDoA	3 ppt	< 3	< 3
PFEESA	3 ppt	< 3	< 3
PFHpA	3 ppt	< 3	< 3
PFHpS	3 ppt	< 3	< 3
PFHxA	3 ppt	< 3	< 3
PFHxS	3 ppt	< 3	< 3
PFMBA	3 ppt	< 3	< 3
PFMPA	4 ppt	< 4	< 4
PFNA	4 ppt	< 4	< 4
PFOA	4 ppt	< 4	< 4
PFOS	4 ppt	< 4	< 4
PFPeA	3 ppt	< 3	< 3
PFPeS	4 ppt	< 4	< 4
PFTA	8 ppt	< 8	< 8
PFTrDA	7 ppt	< 7	< 7
PFUnA	2 ppt	< 2	< 2
lithium	9 µg/L	< 9	< 9

Spring Creek Well 8 facility 91088 · sample point W88 · groundwater

Compound	MRL	2024-02-21 SE1	2024-08-13 SE2
11Cl-PF3OUdS	5 ppt	< 5	< 5
4:2 FTS	3 ppt	< 3	< 3
6:2 FTS	5 ppt	< 5	< 5
8:2 FTS	5 ppt	< 5	< 5
9Cl-PF3ONS	2 ppt	< 2	< 2
ADONA	3 ppt	< 3	< 3
HFPO-DA	5 ppt	< 5	< 5
NEtFOSAA	5 ppt	< 5	< 5
NFDHA	20 ppt	< 20	< 20
NMeFOSAA	6 ppt	< 6	< 6
PFBA	5 ppt	< 5	< 5
PFBS	3 ppt	< 3	< 3
PFDA	3 ppt	< 3	< 3
PFDoA	3 ppt	< 3	< 3
PFEESA	3 ppt	< 3	< 3
PFHpA	3 ppt	< 3	< 3
PFHpS	3 ppt	< 3	< 3
PFHxA	3 ppt	< 3	< 3
PFHxS	3 ppt	< 3	< 3
PFMBA	3 ppt	< 3	< 3
PFMPA	4 ppt	< 4	< 4
PFNA	4 ppt	< 4	< 4
PFOA	4 ppt	< 4	< 4
PFOS	4 ppt	< 4	< 4
PFPeA	3 ppt	< 3	< 3
PFPeS	4 ppt	< 4	< 4
PFTA	8 ppt	< 8	< 8
PFTrDA	7 ppt	< 7	< 7
PFUnA	2 ppt	< 2	< 2
lithium	9 µg/L	< 9	< 9

St James Well 1 facility 91065 · sample point W65 · groundwater

Compound	MRL	2023-01-24 SE1	2023-07-05 SE2
11Cl-PF3OUdS	5 ppt	< 5	< 5
4:2 FTS	3 ppt	< 3	< 3
6:2 FTS	5 ppt	< 5	< 5
8:2 FTS	5 ppt	< 5	< 5
9Cl-PF3ONS	2 ppt	< 2	< 2
ADONA	3 ppt	< 3	< 3
HFPO-DA	5 ppt	< 5	< 5
NEtFOSAA	5 ppt	< 5	< 5
NFDHA	20 ppt	< 20	< 20
NMeFOSAA	6 ppt	< 6	< 6
PFBA	5 ppt	< 5	< 5
PFBS	3 ppt	< 3	< 3
PFDA	3 ppt	< 3	< 3
PFDoA	3 ppt	< 3	< 3
PFEESA	3 ppt	< 3	< 3
PFHpA	3 ppt	< 3	< 3
PFHpS	3 ppt	< 3	< 3
PFHxA	3 ppt	< 3	< 3
PFHxS	3 ppt	< 3	< 3
PFMBA	3 ppt	< 3	< 3
PFMPA	4 ppt	< 4	< 4
PFNA	4 ppt	< 4	< 4
PFOA	4 ppt	< 4	< 4
PFOS	4 ppt	< 4	< 4
PFPeA	3 ppt	< 3	< 3
PFPeS	4 ppt	< 4	< 4
PFTA	8 ppt	< 8	< 8
PFTrDA	7 ppt	< 7	< 7
PFUnA	2 ppt	< 2	< 2
lithium	9 µg/L	< 9	< 9

St James Well 2 facility 91066 · sample point W66 · groundwater

Compound	MRL	2023-01-24 SE1	2023-07-05 SE2
11Cl-PF3OUdS	5 ppt	< 5	< 5
4:2 FTS	3 ppt	< 3	< 3
6:2 FTS	5 ppt	< 5	< 5
8:2 FTS	5 ppt	< 5	< 5
9Cl-PF3ONS	2 ppt	< 2	< 2
ADONA	3 ppt	< 3	< 3
HFPO-DA	5 ppt	< 5	< 5
NEtFOSAA	5 ppt	< 5	< 5
NFDHA	20 ppt	< 20	< 20
NMeFOSAA	6 ppt	< 6	< 6
PFBA	5 ppt	< 5	< 5
PFBS	3 ppt	< 3	< 3
PFDA	3 ppt	< 3	< 3
PFDoA	3 ppt	< 3	< 3
PFEESA	3 ppt	< 3	< 3
PFHpA	3 ppt	< 3	< 3
PFHpS	3 ppt	< 3	< 3
PFHxA	3 ppt	< 3	< 3
PFHxS	3 ppt	< 3	< 3
PFMBA	3 ppt	< 3	< 3
PFMPA	4 ppt	< 4	< 4
PFNA	4 ppt	< 4	< 4
PFOA	4 ppt	< 4	< 4
PFOS	4 ppt	< 4	< 4
PFPeA	3 ppt	< 3	< 3
PFPeS	4 ppt	< 4	< 4
PFTA	8 ppt	< 8	< 8
PFTrDA	7 ppt	< 7	< 7
PFUnA	2 ppt	< 2	< 2
lithium	9 µg/L	< 9	< 9

Swope School Well facility 91026 · sample point 26 · groundwater

Compound	MRL	2023-01-17 SE1	2023-07-18 SE2
11Cl-PF3OUdS	5 ppt	< 5	< 5
4:2 FTS	3 ppt	< 3	< 3
6:2 FTS	5 ppt	< 5	< 5
8:2 FTS	5 ppt	< 5	< 5
9Cl-PF3ONS	2 ppt	< 2	< 2
ADONA	3 ppt	< 3	< 3
HFPO-DA	5 ppt	< 5	< 5
NEtFOSAA	5 ppt	< 5	< 5
NFDHA	20 ppt	< 20	< 20
NMeFOSAA	6 ppt	< 6	< 6
PFBA	5 ppt	< 5	< 5
PFBS	3 ppt	< 3	< 3
PFDA	3 ppt	< 3	< 3
PFDoA	3 ppt	< 3	< 3
PFEESA	3 ppt	< 3	< 3
PFHpA	3 ppt	< 3	< 3
PFHpS	3 ppt	< 3	< 3
PFHxA	3 ppt	< 3	< 3
PFHxS	3 ppt	< 3	< 3
PFMBA	3 ppt	< 3	< 3
PFMPA	4 ppt	< 4	< 4
PFNA	4 ppt	< 4	< 4
PFOA	4 ppt	< 4	< 4
PFOS	4 ppt	< 4	< 4
PFPeA	3 ppt	< 3	< 3
PFPeS	4 ppt	< 4	< 4
PFTA	8 ppt	< 8	< 8
PFTrDA	7 ppt	< 7	< 7
PFUnA	2 ppt	< 2	< 2
lithium	9 µg/L	< 9	< 9

Tessa Well 1 facility 91044 · sample point W44 · groundwater

Compound	MRL	2023-05-16 SE1	2023-11-14 SE2
11Cl-PF3OUdS	5 ppt	< 5	< 5
4:2 FTS	3 ppt	< 3	< 3
6:2 FTS	5 ppt	< 5	< 5
8:2 FTS	5 ppt	< 5	< 5
9Cl-PF3ONS	2 ppt	< 2	< 2
ADONA	3 ppt	< 3	< 3
HFPO-DA	5 ppt	< 5	< 5
NEtFOSAA	5 ppt	< 5	< 5
NFDHA	20 ppt	< 20	< 20
NMeFOSAA	6 ppt	< 6	< 6
PFBA	5 ppt	< 5	< 5
PFBS	3 ppt	< 3	< 3
PFDA	3 ppt	< 3	< 3
PFDoA	3 ppt	< 3	< 3
PFEESA	3 ppt	< 3	< 3
PFHpA	3 ppt	< 3	< 3
PFHpS	3 ppt	< 3	< 3
PFHxA	3 ppt	< 3	< 3
PFHxS	3 ppt	< 3	< 3
PFMBA	3 ppt	< 3	< 3
PFMPA	4 ppt	< 4	< 4
PFNA	4 ppt	< 4	< 4
PFOA	4 ppt	< 4	< 4
PFOS	4 ppt	< 4	< 4
PFPeA	3 ppt	< 3	< 3
PFPeS	4 ppt	< 4	< 4
PFTA	8 ppt	< 8	< 8
PFTrDA	7 ppt	< 7	< 7
PFUnA	2 ppt	< 2	< 2
lithium	9 µg/L	< 9	< 9

Tessa Well 2 facility 91045 · sample point W45 · groundwater

Compound	MRL	2023-02-14 SE1	2023-08-01 SE2
11Cl-PF3OUdS	5 ppt	< 5	< 5
4:2 FTS	3 ppt	< 3	< 3
6:2 FTS	5 ppt	< 5	< 5
8:2 FTS	5 ppt	< 5	< 5
9Cl-PF3ONS	2 ppt	< 2	< 2
ADONA	3 ppt	< 3	< 3
HFPO-DA	5 ppt	< 5	< 5
NEtFOSAA	5 ppt	< 5	< 5
NFDHA	20 ppt	< 20	< 20
NMeFOSAA	6 ppt	< 6	< 6
PFBA	5 ppt	< 5	< 5
PFBS	3 ppt	< 3	< 3
PFDA	3 ppt	< 3	< 3
PFDoA	3 ppt	< 3	< 3
PFEESA	3 ppt	< 3	< 3
PFHpA	3 ppt	< 3	< 3
PFHpS	3 ppt	< 3	< 3
PFHxA	3 ppt	< 3	< 3
PFHxS	3 ppt	< 3	< 3
PFMBA	3 ppt	< 3	< 3
PFMPA	4 ppt	< 4	< 4
PFNA	4 ppt	< 4	< 4
PFOA	4 ppt	< 4	< 4
PFOS	4 ppt	< 4	< 4
PFPeA	3 ppt	< 3	< 3
PFPeS	4 ppt	< 4	< 4
PFTA	8 ppt	< 8	< 8
PFTrDA	7 ppt	< 7	< 7
PFUnA	2 ppt	< 2	< 2
lithium	9 µg/L	< 9	< 9

Thomas Creek Well 1 facility 91079 · sample point W79 · groundwater

Compound	MRL	2023-01-24 SE1	2023-07-05 SE2
11Cl-PF3OUdS	5 ppt	< 5	< 5
4:2 FTS	3 ppt	< 3	< 3
6:2 FTS	5 ppt	< 5	< 5
8:2 FTS	5 ppt	< 5	< 5
9Cl-PF3ONS	2 ppt	< 2	< 2
ADONA	3 ppt	< 3	< 3
HFPO-DA	5 ppt	< 5	< 5
NEtFOSAA	5 ppt	< 5	< 5
NFDHA	20 ppt	< 20	< 20
NMeFOSAA	6 ppt	< 6	< 6
PFBA	5 ppt	< 5	< 5
PFBS	3 ppt	< 3	< 3
PFDA	3 ppt	< 3	< 3
PFDoA	3 ppt	< 3	< 3
PFEESA	3 ppt	< 3	< 3
PFHpA	3 ppt	< 3	< 3
PFHpS	3 ppt	< 3	< 3
PFHxA	3 ppt	< 3	< 3
PFHxS	3 ppt	< 3	< 3
PFMBA	3 ppt	< 3	< 3
PFMPA	4 ppt	< 4	< 4
PFNA	4 ppt	< 4	< 4
PFOA	4 ppt	< 4	< 4
PFOS	4 ppt	< 4	< 4
PFPeA	3 ppt	< 3	< 3
PFPeS	4 ppt	< 4	< 4
PFTA	8 ppt	< 8	< 8
PFTrDA	7 ppt	< 7	< 7
PFUnA	2 ppt	< 2	< 2
lithium	9 µg/L	< 9	< 9

View St. Well facility 91024 · sample point 24 · groundwater

Compound	MRL	2023-01-11 SE1	2023-03-28 SE1	2023-07-18 SE2
11Cl-PF3OUdS	5 ppt	–	< 5	< 5
4:2 FTS	3 ppt	–	< 3	< 3
6:2 FTS	5 ppt	–	< 5	< 5
8:2 FTS	5 ppt	–	< 5	< 5
9Cl-PF3ONS	2 ppt	–	< 2	< 2
ADONA	3 ppt	–	< 3	< 3
HFPO-DA	5 ppt	–	< 5	< 5
NEtFOSAA	5 ppt	< 5	–	< 5
NFDHA	20 ppt	–	< 20	< 20
NMeFOSAA	6 ppt	< 6	–	< 6
PFBA	5 ppt	–	< 5	< 5
PFBS	3 ppt	–	< 3	< 3
PFDA	3 ppt	–	< 3	< 3
PFDoA	3 ppt	–	< 3	< 3
PFEESA	3 ppt	–	< 3	< 3
PFHpA	3 ppt	–	< 3	< 3
PFHpS	3 ppt	–	< 3	< 3
PFHxA	3 ppt	–	< 3	< 3
PFHxS	3 ppt	–	< 3	< 3
PFMBA	3 ppt	–	< 3	< 3
PFMPA	4 ppt	–	< 4	< 4
PFNA	4 ppt	–	< 4	< 4
PFOA	4 ppt	–	< 4	< 4
PFOS	4 ppt	–	< 4	< 4
PFPeA	3 ppt	–	< 3	< 3
PFPeS	4 ppt	–	< 4	< 4
PFTA	8 ppt	< 8	–	< 8
PFTrDA	7 ppt	< 7	–	< 7
PFUnA	2 ppt	–	< 2	< 2
lithium	9 µg/L	< 9	–	< 9

West Reno Well 10 facility 91086 · sample point W86 · groundwater

Compound	MRL	2025-02-04 SE1	2025-08-13 SE2
PFHxS	3 ppt	< 3	3.7
11Cl-PF3OUdS	5 ppt	< 5	< 5
4:2 FTS	3 ppt	< 3	< 3
6:2 FTS	5 ppt	< 5	< 5
8:2 FTS	5 ppt	< 5	< 5
9Cl-PF3ONS	2 ppt	< 2	< 2
ADONA	3 ppt	< 3	< 3
HFPO-DA	5 ppt	< 5	< 5
NEtFOSAA	5 ppt	< 5	< 5
NFDHA	20 ppt	< 20	< 20
NMeFOSAA	6 ppt	< 6	< 6
PFBA	5 ppt	< 5	< 5
PFBS	3 ppt	< 3	< 3
PFDA	3 ppt	< 3	< 3
PFDoA	3 ppt	< 3	< 3
PFEESA	3 ppt	< 3	< 3
PFHpA	3 ppt	< 3	< 3
PFHpS	3 ppt	< 3	< 3
PFHxA	3 ppt	< 3	< 3
PFMBA	3 ppt	< 3	< 3
PFMPA	4 ppt	< 4	< 4
PFNA	4 ppt	< 4	< 4
PFOA	4 ppt	< 4	< 4
PFOS	4 ppt	< 4	< 4
PFPeA	3 ppt	< 3	< 3
PFPeS	4 ppt	< 4	< 4
PFTA	8 ppt	< 8	< 8
PFTrDA	7 ppt	< 7	< 7
PFUnA	2 ppt	< 2	< 2
lithium	9 µg/L	< 9	< 9

West Reno Well 12 facility 91087 · sample point W87 · groundwater

Compound	MRL	2025-02-26 SE1	2025-08-13 SE2
PFBS	3 ppt	3.8	3.4
PFHxS	3 ppt	14	12
PFOS	4 ppt	4.9	4.2
11Cl-PF3OUdS	5 ppt	< 5	< 5
4:2 FTS	3 ppt	< 3	< 3
6:2 FTS	5 ppt	< 5	< 5
8:2 FTS	5 ppt	< 5	< 5
9Cl-PF3ONS	2 ppt	< 2	< 2
ADONA	3 ppt	< 3	< 3
HFPO-DA	5 ppt	< 5	< 5
NEtFOSAA	5 ppt	< 5	< 5
NFDHA	20 ppt	< 20	< 20
NMeFOSAA	6 ppt	< 6	< 6
PFBA	5 ppt	< 5	< 5
PFDA	3 ppt	< 3	< 3
PFDoA	3 ppt	< 3	< 3
PFEESA	3 ppt	< 3	< 3
PFHpA	3 ppt	< 3	< 3
PFHpS	3 ppt	< 3	< 3
PFHxA	3 ppt	< 3	< 3
PFMBA	3 ppt	< 3	< 3
PFMPA	4 ppt	< 4	< 4
PFNA	4 ppt	< 4	< 4
PFOA	4 ppt	< 4	< 4
PFPeA	3 ppt	< 3	< 3
PFPeS	4 ppt	< 4	< 4
PFTA	8 ppt	< 8	< 8
PFTrDA	7 ppt	< 7	< 7
PFUnA	2 ppt	< 2	< 2
lithium	9 µg/L	< 9	< 9

West Reno Well 7 facility 91084 · sample point W84 · groundwater

Compound	MRL	2025-02-18 SE1	2025-08-13 SE2
PFBS	3 ppt	3.7	3.9
PFHxA	3 ppt	< 3	3.2
PFHxS	3 ppt	13	13
PFOS	4 ppt	5.3	4.9
PFPeA	3 ppt	3.9	4.8
11Cl-PF3OUdS	5 ppt	< 5	< 5
4:2 FTS	3 ppt	< 3	< 3
6:2 FTS	5 ppt	< 5	< 5
8:2 FTS	5 ppt	< 5	< 5
9Cl-PF3ONS	2 ppt	< 2	< 2
ADONA	3 ppt	< 3	< 3
HFPO-DA	5 ppt	< 5	< 5
NEtFOSAA	5 ppt	< 5	< 5
NFDHA	20 ppt	< 20	< 20
NMeFOSAA	6 ppt	< 6	< 6
PFBA	5 ppt	< 5	< 5
PFDA	3 ppt	< 3	< 3
PFDoA	3 ppt	< 3	< 3
PFEESA	3 ppt	< 3	< 3
PFHpA	3 ppt	< 3	< 3
PFHpS	3 ppt	< 3	< 3
PFMBA	3 ppt	< 3	< 3
PFMPA	4 ppt	< 4	< 4
PFNA	4 ppt	< 4	< 4
PFOA	4 ppt	< 4	< 4
PFPeS	4 ppt	< 4	< 4
PFTA	8 ppt	< 8	< 8
PFTrDA	7 ppt	< 7	< 7
PFUnA	2 ppt	< 2	< 2
lithium	9 µg/L	< 9	< 9

West Reno Well 8 facility 91085 · sample point W85 · groundwater

Compound	MRL	2025-02-04 SE1	2025-08-20 SE2
11Cl-PF3OUdS	5 ppt	< 5	< 5
4:2 FTS	3 ppt	< 3	< 3
6:2 FTS	5 ppt	< 5	< 5
8:2 FTS	5 ppt	< 5	< 5
9Cl-PF3ONS	2 ppt	< 2	< 2
ADONA	3 ppt	< 3	< 3
HFPO-DA	5 ppt	< 5	< 5
NEtFOSAA	5 ppt	< 5	< 5
NFDHA	20 ppt	< 20	< 20
NMeFOSAA	6 ppt	< 6	< 6
PFBA	5 ppt	< 5	< 5
PFBS	3 ppt	< 3	< 3
PFDA	3 ppt	< 3	< 3
PFDoA	3 ppt	< 3	< 3
PFEESA	3 ppt	< 3	< 3
PFHpA	3 ppt	< 3	< 3
PFHpS	3 ppt	< 3	< 3
PFHxA	3 ppt	< 3	< 3
PFHxS	3 ppt	< 3	< 3
PFMBA	3 ppt	< 3	< 3
PFMPA	4 ppt	< 4	< 4
PFNA	4 ppt	< 4	< 4
PFOA	4 ppt	< 4	< 4
PFOS	4 ppt	< 4	< 4
PFPeA	3 ppt	< 3	< 3
PFPeS	4 ppt	< 4	< 4
PFTA	8 ppt	< 8	< 8
PFTrDA	7 ppt	< 7	< 7
PFUnA	2 ppt	< 2	< 2
lithium	9 µg/L	< 9	< 9

Statistics by compound

Compound	Results	Detected	Highest (date)	Mean bounds	KM median	P75	P90	P95
PFHxS	142	13%	15 2023-05-09	0.95–3.56	<MRL	<MRL	3.4	6.9
lithium	142	11%	100 2025-08-05	2.52–10.56	<MRL	<MRL	9.71	14
PFBS	142	6%	5.7 2023-08-29	0.25–3.06	<MRL	<MRL	<MRL	3.3
PFHxA	142	5%	12 2023-05-09	0.32–3.17	<MRL	<MRL	<MRL	<MRL
PFOS	142	4%	20 2023-05-09	0.32–4.15	<MRL	<MRL	<MRL	<MRL
PFPeA	142	4%	13 2023-08-29	0.32–3.2	<MRL	<MRL	<MRL	<MRL
PFOA	142	2%	5.5 2023-01-24	0.11–4.02	<MRL	<MRL	<MRL	<MRL
PFBA	142	1%	6.8 2023-05-09	0.05–5.01	<MRL	<MRL	<MRL	<MRL
PFHpA	142	1%	3.9 2023-05-09	0.03–3.01	<MRL	<MRL	<MRL	<MRL

Never detected (21): 11Cl-PF3OUdS, 4:2 FTS, 6:2 FTS, 8:2 FTS, 9Cl-PF3ONS, ADONA, HFPO-DA, NEtFOSAA, NFDHA, NMeFOSAA, PFDA, PFDoA, PFEESA, PFHpS, PFMBA, PFMPA, PFNA, PFPeS, PFTA, PFTrDA, PFUnA.

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 2023-01-09 to 2026-06-16; 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 4c0ec2d78e0b · 2026-10-18T04:05Z · UCMR 5 release Jul2026 · SDWIS 2026Q3. Data and methods.