WATER QUALITY SAMPLES FOR CONVENTIONAL PARAMETERS

Table 1. Results from nearshore conventional water quality parameter sampling collected by DOH during April 2024, in milligrams per liter (mg/L). 
ParametersHanakao’o
Park 		Mala WharfPuunoa (Baby)
Beach		Kamehameha
Iki Park		Shark Pit -
Puamana		Launiupoko BeachLauniupoko Beach Surf BreakOlowalu Surf BreakKahekili (Airport) Beach
baseduplicatebaseduplicatebaseduplicatebaseduplicatetriplicatebaseduplicatebaseduplicatebaseduplicatebaseduplicatebaseduplicate
Ammonia (as N)ND0.0780.0750.060.0610.0630.011*0.0590.0570.0570.1050.0590.0590.0590.060.0710.0690.070.065
Dissolved Orthophosphate (as P)0.02480.0250.02090.020.02050.02040.01870.0190.01920.02020.01760.01810.01850.01880.02050.01950.02260.02220.0219
NitrateNDNDNDNDNDNDNDNDNDNDNDNDNDNDNDNDNDNDND
NitriteNDND0.014*0.0145*0.0144*0.014*0.0151*0.0145*0.0145*0.0142*0.0147*0.0144*0.0145*0.0139*0.0138*NDNDNDND
Total Alkalinity113119110117111115115114116116120115117115115119117115115
Total Dissolved NitrogenNDNDNDNDNDNDNDNDNDNDNDNDNDNDNDNDNDNDND
Total Dissolved Phosphorus0.0548ND0.06450.0198*NDND0.0357NDND0.0215*ND0.0504NDND0.03670.0262*0.0255*0.017*ND
Total NitrogenNDNDNDNDNDNDNDNDNDNDNDNDNDNDNDNDNDNDND
Total Orthophosphate (as P)0.02490.0280.02480.02480.02290.02270.02360.02450.02410.02630.02510.0250.02410.02450.02820.02510.02460.02040.0207
Total Phosphorus0.0285ND0.1680.05660.2620.06530.06370.07150.08590.08740.04960.2450.05460.07320.06180.04510.03790.02520.017*
Total Suspended Solids4.863.626.754.69.812.572.544.566.753415.66.15.3133.826.611.32.5514.96

Coastal water quality samples were collected by DOH in accordance with DOH protocols.
DOH does not currently have Environmental Action Levels (EALs) for the parameters listed in the table.
The table shows valid sampling results from the sites, including duplicate and triplicate samples collected for quality assurance purposes.
Note that recreational water criteria for human health are based on bacteria levels in the water.
ND: Non-detect
*Values were J flagged in the laboratory report, indicating that the result should be considered as an estimated rather than quantitative value.

Table 2. Results from nearshore conventional water quality parameter sampling collected by DOH during August 2024, in milligrams per liter (mg/L). 
ParametersHanakao’o
Park 		Mala WharfPuunoa (Baby)
Beach		Kamehameha
Iki Park		Shark Pit -
Puamana		Launiupoko BeachLauniupoko Beach Surf BreakOlowalu Surf BreakKahekili (Airport) Beach
baseduplicatebaseduplicatebaseduplicatebaseduplicatebaseduplicatebaseduplicatetriplicatebaseduplicatebaseduplicatebaseduplicate
Ammonia (as N)0.011*0.011*0.018*0.01*0.011*0.013*0.011*0.01*0.012*0.011*0.011*0.009*0.013*0.012*0.012*0.01*0.013*0.011*0.011*
Dissolved Orthophosphate (as P)0.01870.02650.01630.01760.01730.01070.01710.02390.01760.02430.02410.01610.02510.01680.02410.0250.01930.02460.0248
Nitrate (as N)NDNDNDNDNDNDNDNDNDNDNDNDNDNDNDNDNDNDND
Nitrite (as N)NDNDNDNDNDNDNDNDNDNDNDNDNDNDNDNDNDNDND
Total Alkalinity115114112114112112116116114114113113114113113115113114115
Total Dissolved NitrogenNDNDNDNDNDNDNDNDNDNDNDNDNDNDNDNDNDNDND
Total Dissolved Phosphorus0.0407ND0.0330.0185*0.03970.0297*0.03370.03540.03970.04860.03440.03620.03940.03890.030.04290.03890.04020.0578
Total NitrogenNDNDNDNDNDNDNDNDNDNDNDNDNDNDNDNDNDNDND
Total Orthophosphate (as P)0.03210.02890.0183*0.0250.0173*0.0166*0.0280.02870.0176*0.02450.02450.0168*0.0166*0.0158*0.02410.0260.02410.02470.0249
Total PhosphorusND0.02030.027NDND0.0178*0.03570.0208NDND0.0195*ND0.05310.06480.019*0.02750.0183*NDND
Total Suspended Solids 8.357.553.92.83.0516.12.352.958.653.254.452.94.363.954.0810.25.11.851.75

Coastal water quality samples were collected by DOH in accordance with DOH protocols.
DOH does not currently have Environmental Action Levels (EALs) for the parameters listed in the table.
The table shows valid sampling results from the sites, including duplicate and triplicate samples collected for quality assurance purposes.
Note that recreational water criteria for human health are based on bacteria levels in the water.
ND: Non-detect
*Values were J flagged in the laboratory report, indicating that the result should be considered as an estimated rather than quantitative value.

Back