NAVAL AIR STATION SAUFLEY FIELD

Environmental Restoration Program Public Website

Sampling PFAS in Private Drinking Water Wells near Saufley Field

Certain PFAS have been detected in groundwater at Saufley Field above the DoW PFAS interim action levels for private drinking water wells. In 2019, the Navy established a sampling area 1 mile in the direction that groundwater flows away from the on base PFAS release areas. In 2025, the sampling area was expanded to 1 mile from the installation boundary.

2019 Private Drinking Water Well Sampling

The Navy sampled 54 private drinking water wells in the sampling area near Saufley Field in 2019. Laboratory results demonstrated that 14 wells on 14 properties contained PFAS above 70 ppt PFOA and/or PFOS (the Navy’s action level at the time of sampling). These 14 properties initially were provided bottled water for drinking and cooking until they were connected to Emerald Coast Utilities Authority public water by the Navy.

Upon reevaluation the 2019 data in comparison to the DoW PFAS interim action levels for private drinking water wells (Table 1), 10 wells on 10 properties have PFAS at or above DoW PFAS interim action levels for private drinking water wells.

2025 Enduring Solution Outreach and Implementation

In Spring 2025, the Navy contacted the property owners of each of the 10 private drinking water wells that had PFAS at or above DoW PFAS interim action levels for private drinking water wells to request permission to implement an enduring solution (point of entry treatment system as an interim action, with connection to the public water supply as the final action). The results of this action are summarized below.

It was determined that 4 of these private drinking water wells are on properties already connected to the public water supply. Therefore, no action was required by Navy at these 4 properties.

It was determined that 6 of these properties do not have a public water supply connection and require an enduring solution from the Navy.

Four of these 6 properties were given a point of entry treatment system as an interim solution in Spring 2025 and were subsequently connected to Emerald Coast Utilities Authority Public water in early 2026.

Two of these 6 properties have refused any action by the Navy.

2025 Private Drinking Water Well Sampling

In 2025, the Navy sampled 18 private drinking water wells in the sampling area near Saufley Field (16 wells were newly identified and 2 wells were previously sampled in 2019). Laboratory results demonstrated that none of the private drinking water wells sampled near Saufley Field in 2025 contained PFAS above 70 ppt PFOA and/or PFOS or at or above the DoW PFAS interim action levels for private drinking water wells (Table 1)

2019 and 2025 Private Drinking Water Well Results

Table 2 provides a summary of the results of the sampling. Table 3 presents the PFAS results for each of the sampled wells. Figure 3 shows the generalized sample results.

Table 2: Saufley Field 2019 and 2025 Private Drinking Water Well Results Summary

Number of Wells Sampled	Number of wells with no detections of PFOA, PFOS, PFNA, PFHxS, HFPO-DA, or PFBS	Number of wells with detections of PFAS below the DoW PFAS interim action levels*	*Number of wells with detections of PFAS at or above DoW PFAS interim action levels and below 70 ppt PFOA and/or PFOS**	Number of wells with detections of PFOA and/or PFOS above 70 ppt
70	10	36	10**	14***

*DoW PFAS interim action levels for private drinking water wells (Table 1)
**Four of these wells are on properties already connected to public water; no action by Navy required. Four of these wells are no longer used as a source for drinking water, and these properties were connected to public water by the Navy. Two of these wells have had action refused by the property owner.
***All 14 of these wells are no longer used as a source for drinking water, and these properties were connected to public water by the Navy.

Table 3: Saufley Field 2019 and 2025 Private Drinking Water Well Results

Sample	PFOA (ppt)	PFOS (ppt)>/b>	PFOA+PFOS (ppt)	PFNA (ppt)	PFHxS (ppt)	HFPO-DA (ppt)	PFBS (ppt)	Hazard Index
1	1,756.99 J	183.89 J	1,940.88	0.44 J	271.22 J	ND	30.92 J	27.18
2	5.79	4.68	10.47	0.28 J	3.98	ND	0.98 J	0.43
3	13.89	1.7 J	15.59	ND	1.42 J	ND	0.42 J	0.14
4	1,005.31 J	31.25 J	1,036.56	0.2 J	78.75 J	ND	9.47 J	7.90
5	1,012.08 J	103.25 J	1,115.33	0.33 J	132.88 J	ND	13.76 J	13.33
6	3.85	6.55	10.4	0.14 J	1.98 J	ND	5.24	0.21
7	641.88 J	1,420.09 J	2,061.97	3.48 J	678.25 J	ND	57.75 J	68.20
8	5.54	7.27	12.81	ND	19.07	ND	1.47 J	1.91
9	4.22	ND	4.22	ND	1.61 J	ND	0.51 J	0.16
10	59.11	363.78	422.89	2.91 J	95.96	ND	5.25 J	9.89
11	187.3	630.69	817.99	2.85 J	334.03	ND	23.34 J	33.70
12	3,489.42 J	232.57 J	3,721.99	0.42 J	447.98 J	ND	50.21 J	44.87
13	15.21	33.97	49.18	1.01 J	13.69	ND	10.65	1.43
14	13.9 J	23.7	35.5	2.23 J	5.11	ND	10.79	0.72
15	2,363.34 J	7,337.72 J	9,701.06	3.57 J	1,475.91 J	ND	178.63 J	148.04
16	18	5.36	23.36	0.24 J	13.39	ND	2.37	1.36
17	21.69	4.84	26.53	0.23 J	14.18	ND	1.94 J	1.44
18	5.81	4.59	10.4	0.46 J	0.81 J	ND	15.69	0.13
19	1,296.55	353.32	1,649.87	0.69 J	284.91	ND	31.7 J	28.58
20	957.09	1,828.99	2,786.08	2.55 J	901.87	ND	64.56	90.47
21	0.59 J	0.53 J	1.12	ND	0.19 J	ND	ND	NC
22*	3.8	4	7.8	0.2 J	2.72	ND	11	0.30
23	ND	0.15 J	0.15	ND	ND	ND	ND	NC
24	ND	ND	ND	ND	ND	ND	ND	NC
25	ND	ND	ND	ND	ND	ND	ND	NC
26	0.59 J	1.19 J	1.78	ND	0.45 J	ND	0.19 J	0.05
27	5.01	4.86	9.87	0.25 J	2.78	ND	2.51	0.30
28*	0.63 J	ND	0.63	ND	0.47 J	ND	ND	NC
29	4.87	2.01 J	6.88	ND	1.04 J	ND	0.13 J	0.10
30	ND	ND	ND	ND	ND	ND	ND	NC
31	256.94 J	403.97 J	660.91	2.77 J	94.73 J	ND	10.49 J	9.76
32	21.14	45.99	67.13	0.76 J	9.54	ND	36.81	1.04
33	ND	0.13 J	0.13	ND	ND	ND	ND	NC
34	4.43	3.08	7.51	0.15 J	0.91 J	ND	4.76	0.11
35	1.07 J	6.82	7.82	ND	0.61 J	ND	0.34 J	0.06
36	ND	ND	ND	ND	ND	ND	ND	NC
37	ND	ND	ND	ND	ND	ND	ND	NC
38	3.43	6.33	9.76	0.14 J	1.91 J	ND	1.31 J	0.21
39	17.27	1.51 J	18.78	ND	1.66 J	ND	0.17 J	0.17
40	475.6	905.24 J	1,380.84	1.91 J	581.05 J	ND	59.12	58.33
41	2,034.49 J	299.39 J	2,333.88	0.61 J	387.57 J	ND	45.54 J	38.84
42	ND	ND	ND	ND	ND	ND	ND	NC
43	2.33	1.46 J	3.79	ND	0.98 J	ND	0.16 J	0.10
44	1.98 J	2.99	4.97	0.12 J	1.5 J	ND	0.29 J	0.16
45	2.45	12.03	14.48	0.11 J	1.35 J	ND	0.91 J	0.15
46	2.71	2.45	5.16	0.13 J	1.32 J	ND	2.86	0.15
47	4.35 J	13.22 J	17.57	0.16 J	1.51 J	ND	ND	0.17
48	ND	ND	ND	ND	0.36 J	ND	ND	NC
49	18.94	8.07	27.01	0.28 J	5.82	ND	ND	0.61
50	ND	ND	ND	ND	ND	ND	ND	NC
51	10.42	11.54	21.96	0.61 J	5.17	ND	1.6 J	0.58
52	ND	0.24 J	0.24	ND	0.51 J	ND	0.13 J	0.05
53	0.68 J	0.49 J	1.17	ND	0.36 J	ND	ND	NC
54	58.1	26	84.1	2.02 J	18	ND	7.73	1.86
55	ND	ND	ND	ND	ND	ND	ND	NC
56	3.9	3.1	7	ND	0.91 J	ND	1.4 J	0.09
57	2.4	2.9	5.3	ND	1.6 J	ND	1.2 J	0.16
58	ND	ND	ND	ND	ND	ND	ND	NC
59	2.9	1.7	4.6	ND	1.7	ND	3.1	0.17
60	2.4	1.1 J	3.5	ND	2.4	ND	3.6	0.24
61	8.7	6.7	15.4	ND	3.3	ND	4.2	0.33
62	1.1 J	1.4 J	2.5	ND	0.96 J	0.52 J	ND	0.15
63	2.2	2.8	5	ND	0.77 J	ND	2.3	0.08
64	ND	ND	ND	ND	ND	ND	0.87 J	NC
65	6.9	2.3	9.2	ND	2.3	ND	0.51 J	0.23
66	1.1 J	ND	1.1	ND	ND	ND	ND	NC
67	ND	ND	ND	ND	ND	ND	ND	NC
68	3.9	5.7	9.6	ND	3.5	ND	1.6 J	0.35
69	11	4.1	15.1	ND	2.5	ND	ND	NC
70	6.3	3.8	10.1	ND	1.9	ND	1.7 J	0.19

ppt = parts per trillion
HI - Hazard Index; calculated if two or more applicable PFAS (PFNA, PFHxS, HFPO-DA, and PFBS) are detected in the sample. EPA Hazard Index Fact Sheet
ND - not detected
NC = hazard index not calculated because less than two of the applicable PFAS were detected in the sample
J = laboratory estimated value
*For the 2 wells that were sampled in both 2019 and 2025; the highest result for each PFAS is presented.

Figure 2: Private Drinking Water Well Sampling Area – Saufley Field

Figure 3: Saufley Field 2019 and 2025 Private Drinking Water Well Results

Identification of PFAS Releases at Saufley Field

Confirmed and potential release areas at Saufley Field were identified during a thorough records review and completion of personnel interviews. Groundwater, surface water, and soil samples were subsequently collected and PFAS were detected in groundwater and soil samples. The potential/suspected PFAS release areas that were investigated are depicted in Figure 4 and listed below. The Navy will continue investigating PFAS at Saufley Field in accordance with the CERCLA process and will evaluate whether further actions are needed. To find out more about the environmental investigation at NAS Pensacola, visit the Administrative Record.

Potential/Suspected PFAS Release Areas – Saufley Field

Chlorinated Pump House (Former Building 834)
Sewage Treatment Plant (Former Building 834-A)
General Storage (Former Building 859-B) and Chlorinator Building/Sewage Treatment (Former Building 859-C)
Former Fire Truck Staging Areas
Land Application Area, Sites 2A and 2B
Former Fire Fighting Training Area (Site 2)
Former Crash Shack/Block House (Building 867)
Current Fire Station (Building 2451)
Temporary Fire Station/Hangar (Building 808)

Figure 4: PFAS Release Areas – Saufley Field