COASTAL SEDIMENT SAMPLES

Table 1. Results from coastal sediment samples collected by DOH during May 2024, in milligrams per kilogram (mg/kg).

Parameters	DOH EAL: Commercial/ Industrial Direct Exposure1	DOH EAL: Unrestricted Soil1	Hanakao’o Park	Mala Wharf	Puunoa (Baby) Beach 2					Kamehameha Iki Park	Shark Pit - Puamana	Launiupoko Beach (Nearshore)	Launiupoko Beach (Surf Break)	Olowalu Surf Break	Kahekili (Airport) Beach2
			base	base	base	duplicate	triplicate	base	base	base	base	base	base	duplicate	triplicate
Aluminum	—	—	5640	14300	5990	5570	5480	5070	12000	9900	8300	6230	3200	3120	2980
Antimony	82	6.3	ND	ND	ND*	ND	ND	ND	ND	ND	ND	ND	ND*	ND*	ND*
Arsenic	95	24	17.8	13.1	21.1	18.8	17.4	13.4	24.2	22.8	22.2	6.42	15.5	17.4	20.8
Barium	2500	1000	7.09	7.24	5.85	5.8	5.92	5.21	8.46	5.91	6.27	4.46	6.13	5.88	6.57
Beryllium	150	31	ND	ND*	ND	ND	ND	ND	ND	ND	ND	ND*	ND	ND	ND
Cadmium	19	17	ND	ND	ND	ND	ND	ND	ND	ND	ND	ND	ND	ND	ND
Chromium	1100	1100	23.8	43.5	20.3	16.3	14.9	39.7	39.9	39	27.8	39.2	13.4	14.5	17.1
Cobalt	80	80	13.5	21.6	9.85	7.19	6.88	19.6	15	20.1	14.8	21.3	4.58	5.09	6.29
Copper	2500	630	8.36	27.5	15.3	8.39	9.23	10.9	19.7	21.6	17.5	20.3	2.9	3.66	3.06
Iron	—	—	16700	30000	14600	12600	13800	26200	26200	29500	22800	27700	8920	8600	9080
Mercury	61	4.7	ND	ND	ND	ND	ND	ND	ND	ND	ND	ND	ND	ND*	ND*
Molybdenum	1000	78	ND*	ND*	ND*	ND*	ND*	ND	ND	ND	ND	ND*	ND*	ND*	ND*
Nickel	410	410	156	194	107	70.6	59.3	244	94.5	160	121	237	54.5	57.6	74.8
Lead	800	200	1.6	4.17	4.78	4	4.08	2.27	2.23	2.37	1.9	1.22	ND*	ND*	1.22
Selenium	1000	78	1.23	1.97	1.41	1.26	1.32	1.44	2.3	2.54	2.1	1.72	ND*	ND*	ND*
Silver	1000	78	ND	ND	ND	ND	ND	ND	ND	ND	ND	ND	ND	ND	ND
Titanium	—	—	785	2080	866	789	760	911	1880	1570	1390	1210	403	375	356
Thallium	10	0.78	ND	ND	ND	ND	ND	ND	ND	ND	ND	ND	ND	ND	ND
Vanadium	770	770	30.3	72.1	31.9	26.4	28.9	34.4	65.9	74.1	60	45.7	ND*	ND*	ND*
Zinc	2500	1000	22.6	54.8	29.1	23.7	24.2	30.2	34.1	41.7	32.5	37	11	11.9	13.5

Sediment samples were collected by DOH in accordance with DOH protocols.
DOH EAL: Hawaii DOH Environmental Action Level for screening. An entry of “—” means the analyte does not have an EAL.
Bolded numbers indicate exceedances of DOH’s EALs for unrestricted soils.
ND: Non-detect
¹Screening values represent soil EALs for commercial/industrial land use and unrestricted land use obtained from DOH’s TGM EAL Surfer (Tier 1 EALs) search function (found here: Environmental Hazard Evaluation and Environmental Action Levels – HEER Office (hawaii.gov)) at the time of data release (Spring 2024).
²Additional duplicate and triplicate samples were collected at Kamehameha Iki Park and Kahekili (Airport) Beach for quality assurance/quality control purposes

Table 2. Results from coastal sediment samples collected by DOH during August 2024, in milligrams per kilogram (mg/kg).

Parameters	DOH EAL: Commercial/ Industrial Direct Exposure1	DOH EAL: Unrestricted Soil1	Hanakao’o Park	Mala Wharf	Puunoa (Baby) Beach	Kamehameha Iki Park 2					Shark Pit - Puamana	Launiupoko Beach (Nearshore)	Launiupoko Beach (Surf Break)	Olowalu Surf Break	Kahekili (Airport) Beach2
			base	base	base	base	duplicate	triplicate	base	base	base	base	base	duplicate	triplicate
Antimony	82	6.3	ND	ND	ND	ND	ND	ND	ND	ND	ND	ND	ND	ND	ND
Arsenic	95	24	14.9	8.66	17.8	18.8	21.5	19.1	20.7	20.5	19	7.36	12.7	12.4	13.5
Barium	2500	1000	5.27	5.82	5.24	6.19	6.92	6.24	7.2	5.72	4.95	4.54	4.63	4.82	5.13
Beryllium	150	31	ND	ND	ND	ND	ND	ND	ND	ND	ND	ND	ND	ND	ND
Cadmium	19	17	ND	ND	ND	ND	ND	ND	ND	ND	ND	ND	ND	ND	ND
Chromium	1100	1100	24.6	41.3	18	31.6	38.7	36.7	37.9	33.3	28.1	30.5	18.1	16.2	18.9
Cobalt	80	80	13.2	18.9	8.18	14.9	18.3	18.5	15.9	19	15.6	18.2	7.03	6.19	7.53
Copper	2500	630	6.44	22.9	8.3	12.9	15.1	13.6	17.3	18	14.5	18.6	ND	ND	ND
Iron	—	—	14400	35200	14600	22100	24800	25400	27500	32400	23500	25600	8900	9520	9410
Lead	800	200	2.66	4.13	4.76	2.17	2.4	2.81	2.12	2.33	2.05	1.41	ND	ND	1
Mercury	61	4.7	ND	ND	ND	ND	ND	ND	ND	ND	ND	ND	ND	ND	ND
Molybdenum	1000	78	ND	ND	ND	ND	ND	ND	ND	ND	ND	ND	ND	ND	ND
Nickel	410	410	132	149	62.1	109	141	158	82.1	131	93.2	151	84	74	90.4
Selenium	1000	78	ND	1.22	ND	1.16	1.32	1.18	1.34	1.54	1.2	1.17	ND	ND	ND
Silver	1000	78	ND	ND	ND	ND	ND	ND	ND	ND	ND	ND	ND	ND	ND
Thallium	10	0.78	ND	ND	ND	ND	ND	ND	ND	ND	ND	ND	ND	ND	ND
Vanadium	770	770	ND	56.5	26.7	42.5	50.5	45.2	54.1	54.4	45.5	39.3	ND	ND	ND
Zinc	2500	1000	19.6	46.1	23.2	26.4	31.8	29.8	32.2	34.9	27.5	29.4	9.42	9.56	10.3

Table 3. Results from coastal sediment samples collected by DOH during November 2024, in milligrams per kilogram (mg/kg).

Parameters	DOH EAL: Commercial/ Industrial Direct Exposure1	DOH EAL: Unrestricted Soil1	Hanakao’o Park	Mala Wharf	Puunoa (Baby) Beach	Kamehameha Iki Park	Shark Pit - Puamana2					Launiupoko Beach (Nearshore)	Launiupoko Beach (Surf Break)	Olowalu Surf Break	Kahekili (Airport) Beach2
			base	base	base	base	base	duplicate	triplicate	base	base	base	base	duplicate	triplicate
Antimony	82	6.3	ND	ND	ND	ND	ND	ND	ND	ND	ND	ND	ND	ND	ND
Arsenic	95	24	17.5	9.03	22.9	16.6	22.1	22.9	22.2	21.3	24	9.5	10.8	11.5	11.6
Barium	2500	1000	5.69	5.75	6	5.32	6.75	6.99	6.74	4.95	5.89	4.38	4.83	5.08	5.35
Beryllium	150	31	ND	ND	ND	ND	ND	ND	ND	ND	ND	ND	ND	ND	ND
Cadmium	19	17	ND	ND	ND	ND	ND	ND	ND	ND	ND	ND	ND	ND	ND
Chromium	1100	1100	25.1	43.6	24	31	40.7	40.4	39.7	34	35.9	27.8	13.7	15.7	15.4
Cobalt	80	80	13.9	21.2	11.8	16.6	17.2	17.7	16.7	19.5	19.6	16.4	4.08	5.28	5.05
Copper	2500	630	6.18	24.2	9.5	11.5	16.5	16.1	16.5	16.6	18.5	20.3	ND	ND	ND
Iron	—	—	13600	31900	10400	17900	22100	19100	17100	32000	27100	29200	4500	6140	5120
Lead	800	200	1.67	4.59	5.95	1.93	2.56	2.73	2.56	2.7	3.05	2.03	ND	ND	1.06
Mercury	61	4.7	ND	ND	ND	ND	ND	ND	ND	ND	ND	ND	ND	ND	ND
Molybdenum	1000	78	ND	ND	ND	ND	ND	ND	ND	ND	ND	ND	ND	ND	ND
Nickel	410	410	112	155	79.8	121	87.2	93.2	87.2	105	103	90	40	48.2	51.6
Selenium	1000	78	ND	1.37	1.13	1.15	1.6	1.63	1.58	1.59	1.83	1.51	ND	ND	ND
Silver	1000	78	ND	ND	ND	ND	ND	ND	ND	ND	ND	ND	ND	ND	ND
Thallium	10	0.78	ND	ND	ND	ND	ND	ND	ND	ND	ND	ND	ND	ND	ND
Vanadium	770	770	29.6	62.4	37.4	38.3	57.7	55.9	56.5	51.5	57.8	41.7	ND	ND	ND
Zinc	2500	1000	18.8	47.4	29.3	23.9	30.6	31.9	31.1	31.9	34	27.7	7.09	7.38	39.2

Sediment samples were collected by DOH in accordance with DOH protocols.
DOH EAL: Hawaii DOH Environmental Action Level for screening. An entry of “—” means the analyte does not have an EAL.
Bolded numbers indicate exceedances of DOH’s EALs for unrestricted soils.
ND: Non-detect
¹Screening values represent soil EALs for commercial/industrial land use and unrestricted land use obtained from DOH’s TGM EAL Surfer (Tier 1 EALs) search function (found here: Environmental Hazard Evaluation and Environmental Action Levels – HEER Office (hawaii.gov)) at the time of data release (Fall 2024).
²Additional duplicate and triplicate samples were collected at Shark Pit – Puamana and Kahekili (Airport) Beach for quality assurance/quality control purposes.

Table 4. Results from coastal sediment samples collected by DOH during February 2025 for metals, in milligrams per kilogram (mg/kg).

Parameters	DOH EAL: Commercial/ Industrial Direct Exposure1	DOH EAL: Unrestricted Soil1	Mala Wharf	Puunoa (Baby) Beach	Shark Pit - Puamana	Launiupoko Beach (Nearshore)	Olowalu Surf Break 2					Kahekili (Airport) Beach2
			base	base	base	base	base	duplicate	triplicate	base	duplicate	triplicate
Antimony	82	6.3	ND	ND	ND	ND	ND	ND	ND	ND	ND	ND
Arsenic	95	24	10.5	18.5	21.7	24.6	7.63	7.6	8.08	13.5	12.2	14.4
Barium	2500	1000	6.93	5.86	7.42	7.01	4.93	5.03	5.72	5.13	5.36	7.47
Beryllium	150	31	ND	ND	ND	ND	ND	ND	ND	ND	ND	ND
Cadmium	19	17	ND	ND	ND	ND	ND	ND	ND	ND	ND	ND
Chromium	1100	1100	47	22.5	47.7	45.8	35.6	31.6	34.3	20.8	18.9	23.6
Cobalt	80	80	24	9.94	20	25.4	20.5	18.8	19.7	7.72	7.39	9.47
Copper	2500	630	27.7	9.84	22.6	23.3	21.1	22.6	22.2	3.9	3.56	3.72
Iron	—	—	36400	14100	28600	31600	30400	26600	30100	5980	5300	5880
Lead	800	200	6.35	4.62	3.01	3.3	1.71	1.72	1.61	ND	ND	ND
Mercury	61	4.7	ND	ND	ND	ND	ND	ND	ND	ND	ND	ND
Molybdenum	1000	78.2	ND	ND	ND	ND	ND	ND	ND	ND	ND	ND
Nickel	410	410	168	76.4	105	151	141	123	137	86.5	81.6	101
Selenium	1000	78	1.56	1	1.67	2.01	1.47	1.37	1.74	ND	ND	ND
Silver	1000	78	ND	ND	ND	ND	ND	ND	ND	ND	ND	ND
Thallium	10	0.8	ND	ND	ND	ND	ND	ND	ND	ND	ND	ND
Vanadium	770	770	67.9	32	65.6	72.3	49.5	47.9	49	ND	ND	ND
Zinc	2500	1000	52.2	23.8	37	42.5	32.3	31.5	32.1	10.2	10.1	10.9

Sediment samples were collected by DOH in accordance with DOH protocols.
DOH EAL: Hawaii DOH Environmental Action Level for screening. An entry of “—” means the analyte does not have an EAL.
Concentrations higher than DOH EALs are shown in bold font.
ND: Non-detect
¹Screening values represent soil EALs for commercial/industrial land use and unrestricted land use obtained from DOH’s TGM EAL Surfer (Tier 1 EALs) search function (found here: Environmental Hazard Evaluation and Environmental Action Levels – HEER Office (hawaii.gov)) at the time of data release (Winter 2025).
²Additional duplicate and triplicate samples were collected at Olowalu Surf Break and Kahekili (Airport) Beach for quality assurance/quality control purposes.

Table 5. Results from sediment samples collected by DOH during May 2025 for metals, in milligrams per kilogram (mg/kg).

Parameters	DOH EAL: Commercial/ Industrial Direct Exposure1	DOH EAL: Unrestricted Soil1	Mala Wharf 2					Puunoa (Baby) Beach	Shark Pit - Puamana	Launiupoko Beach (Nearshore)	Olowalu Surf Break	Kahekili (Airport) Beach2
			base	duplicate	triplicate	base	base	base	base	base	duplicate	triplicate
Antimony	82	6.256	ND	ND	ND	ND	ND	ND	ND	ND	ND	ND
Arsenic	95	24	8.45	7.54	8.96	18.3	21	22.3	7.01	10.5	13.2	9.56
Barium	2500	1000	5.23	5.36	5.52	5.34	7.3	5.63	5.12	5.07	6.53	5.6
Beryllium	150	31	ND	ND	ND	ND	ND	ND	ND	ND	ND	ND
Cadmium	19	17	ND	ND	ND	ND	ND	ND	ND	ND	ND	ND
Chromium	1100	1100	42.9	39.3	43.5	22.3	39.4	36.6	30	14.7	15.4	13
Cobalt	80	80	20.2	19.8	22.4	11	17.4	20.1	17.3	4.8	4.89	3.48
Copper	2500	630	26.8	26.2	28.2	9.18	18.5	18.8	19	2.5	2.52	ND
Iron	—	—	36400	37100	34300	10800	26500	29300	27000	4380	4990	5500
Lead	800	200	4.25	5.25	4.29	5.07	2.48	2.71	1.34	ND	ND	ND
Mercury	61	4.692	ND	ND	ND	ND	ND	ND	ND	ND	ND	ND
Molybdenum	1000	78.203	ND	ND	ND	ND	ND	ND	ND	ND	ND	ND
Nickel	410	410	138	137	158	86	86.7	109	119	48.5	44.7	35.1
Selenium	1000	78	1.18	1.13	1.34	ND	1.35	1.72	1.16	ND	ND	ND
Silver	1000	78	ND	ND	ND	ND	ND	ND	ND	ND	ND	ND
Thallium	10	0.78	ND	ND	ND	ND	ND	ND	ND	ND	ND	ND
Vanadium	770	770	63.4	60.4	64.5	32	56.3	61	44.6	ND	ND	ND
Zinc	2500	1000	49.2	49.7	54.3	26.8	31.5	34.3	27.5	8.02	9.01	6.73

Sediment samples were collected by DOH in accordance with DOH protocols.
DOH EAL: Hawaii DOH Environmental Action Level for screening. An entry of “—” means the analyte does not have an EAL.
ND: Non-detect
¹Screening values represent soil EALs for commercial/industrial land use and unrestricted land use obtained from DOH’s TGM EAL Surfer (Tier 1 EALs) search function (found here: Environmental Hazard Evaluation and Environmental Action Levels – HEER Office (hawaii.gov)) at the time of data release (Spring 2025).
²Additional duplicate and triplicate samples were collected at Mala Wharf and Kahekili (Airport) Beach for quality assurance/quality control purposes.

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