SAND ISLAND WATER QUALITY MONITORING STATION DESCRIPTIONS

Copy of the NPDES permit for Sand Island Wastewater Treatment Plant will help
greatly in understanding the data and also locating the stations described below.

If you would like to obain a copy of the NPDES permit please contact us.

 STN   CATEGORY      POSITION       LATITUDE        LONGITUDE    LOCATION DESCRIPTION
===== ===========   ===========   ===========     ============   ====================================================
 N1   NEARSHORE        N/A         OLD STN# 5       OLD STN# 5    Near the Honolulu Airport surfing area
 N2   NEARSHORE        N/A         OLD STN# 4       OLD STN# 4    Near the Sand Island Beach Park surfing area (west)
 N3   NEARSHORE        N/A         OLD STN# 3       OLD STN# 3    Near the Sand Island Beach Park surfing area (east)
 N4   NEARSHORE        N/A         OLD STN# 2       OLD STN# 2    Near the Sand Island Beach Park surfing area (center)
 N5   NEARSHORE        N/A           no data         no data      Near the Ala Moana Beach Park surfing area (center)
  Z    OFFSHORE       In-ZID      21ø16'53.4"N    157ø54'21.0"W   In the ZID of the diffuser
 B1    OFFSHORE  Down Coast Ref.  21ø17'31.2"N    157ø55'44.0"W   2000m west of the ZID boundary
 B2    OFFSHORE     Near-field    21ø17'23.4"N    157ø55'23.9"W   1200m west of the ZID boundary
 B3    OFFSHORE    ZID boundary   21ø17'00.5"N    157ø54'42.0"W   Northwest ZID boundary
 B4    OFFSHORE    ZID boundary   21ø17'01.4"N    157ø54'23.8"W   Inshore ZID boundary
 B5    OFFSHORE    ZID boundary   21ø17'00.0"N    157ø54'03.2"W   Northeast ZID boundary
 B6    OFFSHORE    Upcoast Ref.   21ø17'04.7"N    157ø53'25.3"W   1200m east of the ZID boundary
 ZM1   OFFSHORE    ZOM boundary    OLD STN# 9       OLD STN# 9    Southwest ZOM boundary
 ZM2   OFFSHORE    ZOM boundary    OLD STN# 8       OLD STN# 8    South ZOM boundary
 ZM3   OFFSHORE    ZOM boundary    OLD STN# 10     OLD STN# 10    Inshore ZOM boundary
 ZM4   OFFSHORE    ZOM boundary    OLD STN# 7       OLD STN# 7    Northeast ZOM boundary
 PZ    OFFSHORE        N/A             N/A             N/A        In the plume, 35m from the diffuser
 P1    OFFSHORE        N/A             N/A             N/A        In the plume, 70m from the diffuser
 P2    OFFSHORE        N/A             N/A             N/A        In the plume, 140m from the diffuser
  1   OLD STN#'S       ZOM        21ø15'00.0"N    156ø49'06.0"W
  2   OLD STN#'S       ZOM        21ø17'32.0"N    157ø52'12.0"W
  3   OLD STN#'S       ZOM        21ø17'40.0"N    157ø52'55.0"W
  4   OLD STN#'S       ZOM        21ø17'38.0"N    157ø53'39.0"W
  5   OLD STN#'S       ZOM        21ø17'40.0"N    157ø54'48.0"W
  6   OLD STN#'S       ZOM        21ø16'57.6"N    157ø54'23.0"W
  7   OLD STN#'S       ZOM        21ø17'04.8"N    157ø54'02.0"W
  8   OLD STN#'S       ZOM        21ø16'53.0"N    157ø54'21.2"W
  9   OLD STN#'S       ZOM        21ø17'00.0"N    157ø54'45.1"W
 10   OLD STN#'S       ZOM        21ø17'01.2"N    157ø54'23.9"W