Hawaiian Electric Company - Environmental Department
19960228
Unknown
Kahe Generating Station NPDES Report 1996, Oahu, HI, (NODC Accession 9900012)
None
Numeric Data Sets > Benthic
Annual reporting requirements for NPDES
NPDES Monitoring Program for 1996
Honolulu, HI
HECO Environmental Department
Prepared for: Environmental Department Hawaiian Electric Company, P. O. Box 2750, Honolulu, Hawaii 96840. Prepared by: AECOS Inc., 970 N. Kalaheo Ave., Suite C300, Kailua, Hawaii, 96734, under annual reporting requirements of National Pollutant Discharge Elimination System (NPDES) Permit HI0000019, Section C.5. The originator format of these data and redundant text files are archived at the NODC under Accession # 9900012.
The Hawaiian Electric Company Inc. (HECO), under requirements of National Pollutant Discharge Elimination System (NPDES) Permit HI0000019, Section C.5, annually conducts and reports results of a monitoring program for waters receiving effluent from the Kahe Generating Station, O'ahu, Hawai'i. This report presents results of monitoring conducted during 1996 for water temperature, sand entrainment, and coral coverage. Replicate coral sampling indicated that significant changes in mean coral coverage occurred only at the station 300 m northeast of the Kahe outfall where significant reductions in the coral coverage have occurred in three of the previous four years since Hurricane Iniki in 1992. However, 1995-96 results indicated significant increases in coverage of the two major
component species and in total live coral, the first time this has occurred at this station since Hurricane Iwa in 1982. Over the ten year term from 986 to 1996, this station registered significant reductions in coverage of the two dominant species and in total coral, despite the significant increases in coverage that occurred in 1995-96. The significant decreases in coral cover from 1986 to 1996 were direct effects from Hurricane Iniki, which occurred in September 1992. Results from 1996 monitoring support previous years' conclusions that the Kahe offshore outfall has produced negligible impact on the nearshore coral community and that natural storm disturbances have had greater destructive influence on reef coral coverage throughout the Kahe area. These data are filed at the NODC under NODC Accession # 9900012.
National Pollutant Discharge Elimination System (NPDES) permit HI0000019 authorizes HECO to discharge waste water from the Kahe Generating Station. A provision of this permit is that HECO follow a marine monitoring program and documents marine effects of cooling-water discharge from Kahe Generating Station Units 1 through 6. Specific studies covered under this program include monitoring of temperature elevations of thermal effluents, quantities of sediment entrainment and throughput, and reef coral communities. An annual report of the data, analysis, and findings of these monitoring studies is submitted to the State Department of Health (DOH) Director and Environmental Protection Agency (EPA) Regional Administrator no later than March 1 of each year.
The 1996 daily discharge and unadjusted intake temperature data log (Appendix B of this report) is provided under NODC Accession # 9900021, 'Kahe Generating Station 1996 Temperature Data.xls'
Resource Description: NODC Accession # 9900012
19960101
Unknown
19961231
Unknown
ground condition
Part of series of annual NPDES surveys
The Kahe Generating Station is in a valley between Kahe Point and Nanakuli on the Wai`anae coast of O'ahu, Hawaii, approximately 18 miles west of Honolulu. Point of discharge is approximately 250 m (820 ft) offshore.
-158.1353
-158.1353
21.35667
21.35667
NCEI Geoportal FilterCoRIS_Metadata
CoRIS Discovery Thesaurus
Numeric Data Sets > Biology
CoRIS Theme Thesaurus
EARTH SCIENCE > Oceans > Coastal Processes > Coral Reefs
EARTH SCIENCE > Oceans > Coastal Processes > Coral Reefs
EARTH SCIENCE > Biosphere > Zoology > Corals > Reef Damage Assessment > Pollution
EARTH SCIENCE > Oceans > Coastal Processes > Coral Reefs > Coral Reef Ecology > Coral Cover
EARTH SCIENCE > Oceans > Coastal Processes > Coral Reefs > Coral Reef Ecology > Hard Coral Cover Live percentage
EARTH SCIENCE > Oceans > Ocean Circulation > Heated Effluent Discharge
none
Wind measurements
Wave measurements
Sediment throughput
Sand throughput
ISO 19115 Topic Category
biota
002
CoRIS Place Thesaurus
OCEAN BASIN > Pacific Ocean > Central Pacific Ocean > Hawaiian Islands > Hawaii > Kahe (21N158W0001)
COUNTRY/TERRITORY > United States of America > Hawaii > Hawaii > Kahe (21N158W0001)
CoRIS Region
MHI
mome
Oahu
Wai`anae coast
CoRIS Theme Thesaurus
EARTH SCIENCE > Biosphere > Aquatic Habitat > Benthic Habitat
CoRIS Theme Thesaurus
EARTH SCIENCE > Biosphere > Zoology > Corals
ITIS organization and partners: U.S. Department of Agriculture; National Oceanic and Atmospheric Administration; U.S. Geological Survey; Smithsonian Institution; U.S. Environmental Protection Agency; National Biological Information Infrastructure; Agriculture and Agri-Food Canada; U.S. National Park Service; Conabio (Comisión nacional para el conocimiento y uso de la biodiversidad - Mexico)
20020602
Unknown
Integrated Taxonomic Information System (ITIS)
None
Database
World Wide Web at URL: http://www.itis.usda.gov/itis_query.html
Integrated Taxonomic Information System (ITIS) organization and partners
The Integrated Taxonomic Information System (ITIS - at URL: http://www.itis.usda.gov/itis_query.html) was utilized as an aid to complete upper level species classifications FOR THIS METADATA RECORD ONLY, to aid in the development of search engines. No original data was altered at the NODC.
See originator data for taxonomic procedures employed during this study. The Integrated Taxonomic Information System (ITIS) was utilized as an aid to complete upper level species classifications FOR THIS METADATA RECORD ONLY. No original data was altered at the NODC.
To genus and/or species
Keystone (dominant) hard and soft coral species
Kingdom
Animalia
Phylum
Cnidaria
Class
Anthozoa
Order
Scleractinia
Family
Poritidae
Genus
Porites
Species
Porites lobata
Species
Porites compressa
Family
Pocilloporidae
Genus
Pocillopora
Species
Pocillopora meandrina
Family
Acroporidae
Genus
Montipora
Species
Montipora patula
Species
Montipora verrucosa
Family
Faviidae
Genus
Leptastrea
Species
Leptastrea sp.
Order
Zoanthidea
Family
Zoanthidae
Genus
Palythoa
Species
Palythoa tuberculosa
None
None. NOAA and NODC would appreciate recognition as the resource from which these data were obtained in any publications and/or other representations of these data.
Hawaiian Electric Company Environmental Department (HECO)
not applicable
mailing address
P. O. Box 2750
Honolulu
Hawaii
96840
U.S.A.
808-543-7511
808-543-4420
http://www.heco.com/CDA/frontDoor/
9-4:30 PM Pacific Time
HECO can be contacted directly through website
Hawaiian Electric Company Environmental Department
None
Unclassified
Not applicable
MS Word 6.0; 1.4 MB; 'Kahe Generating Station NPDES Annual Report for 1996.doc'; duplicate text (ASCII) files.
After 1973, HECO's Environmental Department conducted extensive NPDES marine monitoring studies to determine the conditions of the Kahe nearshore environment during the station's expansion to six generating units and the relocation of the Kahe shoreline outfall to its present offshore site (Coles and McCain, 1973; Coles and Fukuda, 1975, 1983, 1984; Environmental Department, 1976; McCain, 1977; Coles, 1979, 1980; Coles et al., 1981, 1982, 1985, 1986; Fukuda and Oda, 1987; Environmental Department, 1988, 1989, 1990, 1991, 1992, 1993 1994 and 1995). Several of these reports also document the impacts of major storms on the Kahe nearshore environment that occurred in 1980, 1982 and 1992, and the subsequent recovery of the storm-damaged areas that are influenced by power station operation. These NPDES monitoring reports were submitted to the HI State Department of Health upon completion and are herewith incorporated by reference. This investigation is a continuation of the monitoring programs documented in the referenced reports.
Detailed information re methodologies employed in this study are included as part of the original data file.
Field
CoRIS Theme Thesaurus
EARTH SCIENCE > Biosphere > Zoology > Corals > Reef monitoring and assessment
EARTH SCIENCE > Biosphere > Zoology > Corals > Reef monitoring and assessment > In situ biological
EARTH SCIENCE > Oceans > Ocean Circulation > Heated effluent discharge
EARTH SCIENCE > Oceans > Ocean Temperature > Water Temperature > Bottom Water Temperature
mean effluent temperature
mean influent temperature
water temperatures
Daily records were kept of maximum, minimum, mean effluent, and mean influent temperatures for 1996. Intake and discharge temperatures were recorded continuously using a Foxboro ERB strip chart recorder and Dynatherm resistance bulbs.
Field
CoRIS Theme Thesaurus
Suspended sediments
Bed load sediments
Sand throughtput
Sand
Turbidity
EARTH SCIENCE > Atmosphere > Atmospheric Winds > Surface Winds
Two categories of sediment were measured to estimate the total amount of sand presently being entrained by the Kahe Generation Station: 1) suspended and 2) bed load sediments.
Sediment throughput samples were taken at Units 1-4 and 5-6 discharge points within the Kahe outfall transition basin (Figure 1). Samples were collected by placing a 0.25-m diameter plankton net directly in the discharge. The 110 m mesh plankton net was held approximately 10 m behind the discharge ports for at least three minutes at a depth of 0.5 m. Flow rates determined with a General Oceanics digital flow meter were then used to calculate the total volumes of water sampled. Samples were collected four times in 1996, including two periods of medium to high surf. Pertinent data relating to weather and sea conditions were recorded.
Measured amounts of suspended sediment were converted to units of ml/m3 by dividing by the total volume of seawater sampled. These were then extrapolated to daily throughput estimates by multiplying by the volume of cooling water circulated under operation of all six generating units (3.257 x 106 m3/day).
For bed load sediments, HECO operations personnel conduct pumping and record dates, durations and pumping rates to enable calculation of the total volume of sediment pumped from the forebays. Contractors are hired occasionally to pump or dredge sand from the forebays, intake or discharge basin, during which sand removal volumes are based on contractors' estimates. Whenever sediment was dredged, the volume removed was estimated by the number of truck loads required to transport the sediment to its deposition site.
Field
CoRIS Theme Thesaurus
EARTH SCIENCE > Biosphere > Zoology > Corals > Reef
monitoring and assessment > Benthos analysis > Quadrat monitoring
EARTH SCIENCE > Biosphere > Zoology > Corals > Reef
monitoring and assessment > Benthos analysis > Quadrat monitoring > Photograph analysis
Benthic coverage
EARTH SCIENCE > Oceans > Coastal Processes > Coral Reefs > Coral reef ecology > Hard coral cover Live percentage
Ten permanent quadrats, each 0.66 m2 in area, were established in 1980 at each of the four stations. Each quadrat was marked with tagged metal stakes driven into the reef and cemented in place with underwater epoxy putty. These stakes have been used as reference points for photographing the bottom with a Nikonos 35mm underwater camera with a 28mm wide-angle lens mounted on a support frame. Photographs have been taken yearly since 1980, and missing stakes have been replaced as needed to maintain the quadrats as close as possible to their original location. In cases where the original quadrat was lost or could not be accurately located, new quadrats have been established to provide each station with a full complement of ten replicate quadrats. Of the original 40 quadrats established in 1980, 33 were still present in 1996 and used in long-term analysis of changes in benthic coverage on the reef.
Photographic transparancies of coral coverage at each quadrat were projected onto a white surface on which a rectangle had been drawn which corresponded to the camera stand's 0.66 m2 quadrat. The projected image of the camera stand quadrat was adjusted in size and position to assure a consistent projected area and view of a station's quadrat area between sampling years. Each photo-quadrat slide represents a permanent record of the condition of the coral reef at the time the photograph was taken.
See originator data methodologies description and discussion
Unknown
Hawaiian Electric Company Environmental Department (HECO)
not applicable
mailing address
P. O. Box 2750
Honolulu
Hawaii
96840
U.S.A.
808-543-7511
808-543-4420
http://www.heco.com/CDA/frontDoor/
9-4:30 PM Pacific Time
HECO can be contacted directly through website
Unknown
The Kahe Generating Station is in a valley between Kahe Point and Nanakuli on the Wai`anae coast of O'ahu, Hawaii, approximately 18 miles west of Honolulu. Point of discharge is approximately 250 m (820 ft) offshore.
NOAA National Oceanographic Data Center
NODC User Services
not applicable
mailing and physical address
1315 East-West Highway, SSMC3, 4th Floor
Silver Spring
MD
20910
U.S.A.
301-713-3277 or 3280
301-713-3302
nodc.services@noaa.gov
8:30 AM through 6:00 PM, Monday through Friday EST
Phone/e-mail/FAX/voice mail message
Downloadable Data
NOAA makes no warranty regarding these data, expressed or implied, nor
does the fact of distribution constitute such a warranty. NOAA and NODC
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.
.DOC
MS-Word 6.0
None
Text with accompanying data tables, references, and appendices
None
1300000
https://accession.nodc.noaa.gov/9900012
NODC Data Direct functions through standard Internet browsers; FTP capability required; access ""Data Direct"" through the NODC website at www.nodc.noaa.gov; go to ""year 1999"" and select NODC Accession # 9900012
PC, UNIX, or Mac; standard Internet browser, FTP capability
None
Download through via NODC's ""Data Direct"" system at the NODC homepage at www.nodc.noaa.gov or contact NODC for custom order. (When requesting data from the NODC, the desired data set may be referred to by the 7-digit number given in the RESOURCE DESCRIPTION field of this metadata record)
24 hours if downloaded via the Internet
Contact the NODC User Services Group via phone/FAX/E-mail: nodc.services@noaa.gov
MS-Word 6.0 or compatible; FTP capability; PC, UNIX, or MAC system with standard Internet bowser
20011005
Unknown
Present
Unknown
20200329
20071230
Sheri Phillips
NOAA/NODC
Oceanographer
mailing and physical address
1315 East-West Highway, E/OC1, SSMC3, 4th Floor
Silver Spring
MD
20910
U.S.A.
301-713-3280 x127
301-713-3302
sheri.phillips@noaa.gov
9:30 AM - 6 PM Monday-Thursday
E-mail, phone, FAX, mail
FGDC Biological Data Profile of the Content Standard for Digital Geospatial Metadata
FGDC-STD-001.1-1999
20030214080220
None
19960101
19961231
https://www.coris.noaa.gov/metadata/records/html/nodc_9900012_kahe_coral_coverage.html
164