Leticia Colmenares, Windward Community College Unknown Unpublished Material Unpublished Material http://data.nodc.noaa.gov/accession/0001489 Measurements of water quality parameters were taken by Windward Community College faculty and students at eight sites in the Heeia Stream and adjacent bay waters from December 2002 through November 2003. Parameters include Combined Nitrogen, Total Lead, Total Nitrogen, and Total Phosphorous. Data provided as MS Excel spreadsheets and GIF plots. Assess the water quality of Heeia Stream and adjacent bay waters. NOAASupplemental: Entry_ID: Unknown Sensor_Name: sample bottles, ion chromatograph system Source_Name: manual Project_Campaign: NOAA Originating_Center: Windward Community College Storage_Medium: MS Excel Online_size: 941 kbytes 20021206 20031115 ground condition Complete None Planned -157.8164 -157.8078 21.4483 21.4175 None Coastal studies, stream studies, water quality, Combined Nitrogen, Total Lead, Total Nitrogen, Total Phosphorous ISO 19115 Topic Category environment 007 CoRIS Discovery Thesaurus Numeric Data Sets > Water Quality CoRIS Theme Thesaurus EARTH SCIENCE > Hydrosphere > Water Quality None North Pacific Hawaiian Islands Windward Oahu Heeia Stream Kaneohe Bay CoRIS Region MHI CoRIS Place Thesaurus OCEAN BASIN > Pacific Ocean > Central Pacific Ocean > Hawaiian Islands > Oahu Island > Kaneohe Bay (21N157W0004) COUNTRY/TERRITORY > United States of America > Hawaii > Honolulu > Kaneohe Bay (21N157W0004) OCEAN BASIN > Pacific Ocean > Central Pacific Ocean > Hawaiian Islands > Oahu Island > Oahu (21N157W0003) COUNTRY/TERRITORY > United States of America > Hawaii > Honolulu > Oahu (21N157W0003) None near surface None Dataset credit required Leticia Colmenares Windward Community College Marine Biologist mailing and physical

45-720 Kea'ahala Road

Kaneohe Hawaii 96744 USA (808) 236-9120 leticia@hawaii.edu National Oceanic and Atmospheric Administration, Windward Community College MS Excel see lineage, process step none Determination of Nitrite, Nitrate and Phosphate Summary of Method. Water samples are filtered and analyzed by ion chromatography (IC). Each analytical batch consists of a blank, 5 external calibration standards and a calibration check for every 8 samples. The method detection limits (MDL) are as follows: 0.1 mg/L for phosphate, and 0.05 mg/L for nitrite and nitrate. Preparation of IC samples. Water samples are pre-filtered before analysis in the Dionex ICS-90 ion chromatography system. Fresh water samples (5 mL) are filtered through 0.20 mm IC Millex syringe filters (for freshwater samples) while saltwater samples are filtered through the Dionex Ag/H cartridges and diluted 50:50 using deionized distilled water. Preparation of IC calibration standards. The following calibration standards are prepared. (1) 0.1 mg/L of phosphate, 0.05 mg/L of nitrite and 0.05 mg/L nitrate (2) 0.2 mg/L phosphate and 0.1 mg/L nitrite and 0.1 mg/L nitrate (3) 1.0 mg/L phosphate and 0.5 mg/L nitrite and 0.5 mg/L nitrate (4) 2.0 mg/L phosphate and 1.0 mg/L nitrite and 1.0 mg/L nitrate (5) 10.0 mg/L phosphate and 5.0 mg/L nitrite and 5.0 mg/L nitrate Calibration. The calibration curve must consist of at least three data points. The response of each calibrator must be within 10%, otherwise, it does not meet method criteria and must be removed from the working calibration curve. Final data are summarized in Excel worksheets. The nitrite as N (mg/L) is calculated by multiplying the nitrite (mg/L) with 0.304 (factor). Likewise, the nitrate as N (mg/L) content is calculated by multiplying the nitrate (mg/L) content with 0.226 (factor). The phosphate (mg/L) content is converted to phosphorus (mg/L) by using the factor of 0.326. Determination of Total Nitrogen and Total Phosphorus Summary of Method. To analyze the total N and total P content, all phosphorus-and nitrogen-containing substances in the water sample are first converted to inorganic nitrates and phosphates by photo-oxidation. After photo-oxidation, the samples are analyzed as described above. Photo-oxidation. Water samples (100 mL) added with 2 drops of 30% H2O2, are photo-oxidized using Ace-Hanovia photooxidation apparatus (Department of Health State Laboratory) for four (4) hours to hydrolyze all phosphorus-containing substances into phosphates, and all nitrogen-containing substances into nitrates. Unknown Leticia Colmenares Windward Community College Marine Biologist mailing and physical

45-720 Kea'ahala Road

Kaneohe Hawaii 96744 USA (808) 236-9120 leticia@hawaii.edu Original data files given as MS Excel files in directory ../../data/excel/: File comment HeeiaCN1202-0403.xls Combined Nitrogen HeeiaLead0303-1103.xls Total Lead HeeiaTN1202-0403.xls Total Nitrogen HeeiaTP1202-0403.xls Total Phosphorous Sample dates, locations, and units are defined in each file Redundant ASCII copies were made of each with same file name except for a CSV (Comma Separated Version) extention. The following were downloaded off the internet, http://www.wcc.hawaii.edu/water/ Directory ../../data/figs_text The following files contain plots and a table of the data found in the Excel files described above: combined_nitrogen_plot_table.gif total_phosphorous_plot_table.gif lead_plot_table.gif totalnitrogen_plot_table.gif These files have descriptions and comments regarding each parameter: combined_nitrogen_discussion.txt total_phosphorous_discussion.txt lead_discussion.txt totalnitrogen_discussion.txt More information regarding the data collection locations can be found in directory ../../data/sites: Figures depicting location: HeeiaSiteMap.jpg HeeiaSite01.jpg HeeiaSite02.jpg HeeiaSite03.jpg HeeiaSite04.jpg HeeiaSite05.jpg HeeiaSite06.jpg HeeiaSite07.jpg HeeiaSite08.jpg Descriptive text and discussion: HeeiaSite01.txt HeeiaSite02.txt HeeiaSite03.txt HeeiaSite04.txt HeeiaSite05.txt HeeiaSite06.txt HeeiaSite07.txt HeeiaSite08.txt none NOAA/NESDIS/NODC/NCDDC (National Coastal Data Development Center) Mailing and Physical Address

National Coastal Data Development Center, Building 1100

Stennis Space Center MS 39529 866-732-2382 228-688-2968 ncddcgetdata@noaa.gov 8am-5pm, Monday through Friday Downloadable Data NOAA makes no warranty regarding these data,expressed or implied, nor does the fact of distribution constitute such a warranty. NOAA, NESDIS, NODC and NCDDC cannot assume liability for any damages caused by any errors or omissions in these data, nor as a result of the failure of these data to function on a particular system. 20121207 20100113 Mr. Patrick C. Caldwell NOAA/NESDIS/NODC/NCDDC Hawaii/US Pacific Liaison mailing

1000 Pope Road, MSB 316

Dept. of Oceanography

University of Hawaii at Manoa

Honolulu Hawaii 96822 USA (808)-956-4105 (808) 956-2352 caldwell@hawaii.edu 8 AM to 5 PM weekdays check services@nodc.noaa.gov if not available FGDC CSDGM FGDC-STD-001-1998 20100113044119 None 20021206 20031115 http://www.coris.noaa.gov/metadata/records/html/heeia_wq_fgdc_0001489.html 4434