Water Quality Table 2

Table 2. Results from nearshore water quality samples collected by DOH during April 2024 for dissolved metals, in micrograms per liter (µg/L).
Parameters (Dissolved) DOH EAL:
Surface Water
Action Level
for Marine Habitats
(Ecological)1
Hanakao’o Park Mala WharfPuunoa (Baby) BeachKamehameha
Iki Park
Shark Pit -
Puamana 
Launiupoko
Beach
Launiupoko Beach
Surf Break 
Olowalu Surf
Break
Kahekili (Airport)
Beach 
AluminumNDND5.6*5.5*7.015.69*6.816.185.84*8.548.618.2178.466.644.46*4.73*NDND
Antimony 300.1140.1270.1390.1170.1320.1170.1580.1150.1070.1110.1190.0990.1210.1440.140.1170.1140.1150.124
Arsenic 0.141.381.341.181.341.411.421.281.321.261.311.381.261.111.261.291.521.471.461.24
Beryllium0.038NDND0.010.008*0.010.010.0110.010.0120.0120.0110.010.0110.0110.010.0110.010.009*0.011
Cadmium 9.30.0120.0140.0080.0110.010.010.0130.0110.0160.0110.0090.010.010.0130.0110.0070.0120.0060.011
Chromium 500.1790.190.2470.2570.1960.2150.2260.2090.2340.1850.1930.220.2460.240.3430.3230.4010.3280.261
Cobalt23NDNDNDNDNDNDND0.005*NDND0.007*NDNDNDND0.011NDNDND
Copper 2.90.0690.1060.1770.0930.2560.2730.1530.1690.1750.1620.1450.1150.1760.1320.1340.1270.1210.1170.154
IronNDNDNDNDNDNDNDNDNDNDNDNDNDNDNDNDNDNDND
Lead5.6ND0.003*0.003*0.004*0.003*0.003*0.0050.0050.0060.0050.004*0.004*0.004*0.003*0.003*0.003*0.003*0.004*0.004*
Manganese0.4920.4590.7520.7950.7470.6970.5970.5450.590.5690.791.191.170.9620.9290.7150.6211.040.988
Mercury0.025NDND0.0130.0140.0060.0070.0250.0240.0180.0180.0170.0150.0160.0150.0150.0050.004*0.004*0.004*
Molybdenum3709.7710.59.3310.29.810.410.410.59.3310.39.557.4410.110.310.310.110.310.29.96
Nickel8.30.1230.1510.1640.1650.1520.170.1670.1780.1510.210.1560.1330.1690.1820.170.1740.170.1930.175
Selenium710.0160.0250.0150.0270.0320.0370.0330.0290.0290.0260.0220.0290.0310.0210.013*0.0160.0290.0170.019
Silicon5657455916854365564713773598645057025056595311010633385650
Silver0.10.060.0460.120.1220.1120.1210.1120.1130.1230.1210.120.120.1170.1120.1210.1170.1150.120.118
Thallium12NDND0.010.009*0.0110.0120.010.009*0.010.009*0.007*0.010.0110.0120.0110.009*0.010.010.007*
TinNDND0.0250.020.008*0.0280.0220.0320.020.0220.0190.0190.0280.0160.0210.0340.0230.0160.024
Titanium0.2670.064*ND0.088ND0.229NDND0.0910.119NDNDNDNDNDND0.045*0.2180.285
Vanadium811.711.711.451.451.581.461.51.361.391.211.31.331.51.351.511.91.761.621.63
Zinc86NDND1.110.811.030.7010.790.9431.080.8150.931.091.081.030.7250.8370.72311.45