Monitoring Data

The Commission on Water Resource Management’s Survey Branch is responsible for collecting basic hydrologic data and conducting water availability and sustainable yield analyses statewide. The information presented below highlights some of the Commission’s monitoring activities essential to the protection of Hawaii’s water resources.  The U.S. Geological Survey also collects water level and deep monitor well data through cooperative agreements with CWRM and other government agencies. The Honolulu Board of Water Supply also has a network of water level and deep monitor wells on Oahu.


Deep Monitor Well Data

Kunia Middle Deep Monitor WellA deep monitor well penetrates the freshwater basal aquifer into the underlying brackish and salt water. It is used to estimate the thickness of the freshwater part of the aquifer (freshwater lens) and the freshwater-saltwater transition zone. For convenience, the vertical profile is divided into three parts: the upper fresh water zone (less than 2% sea water), the transition zone (2% to 50% sea water), and into the saline zone (greater than 50% sea water). The data are presented as graphs of the changes in elevation (feet, mean sea level) of the top of the transition zone (2% seawater) and the midpoint of the transition zone (50% seawater) over time.

Cross Section of a Typical Island Aquifer

Click to view the documents below to learn more about deep monitor wells.


Deep Monitor Well Conductivity / Water Level Data

The Commission on Water Resource Management owns a number of deep monitor wells on the islands of Oahu, Maui, and Hawaii. CWRM staff collects conductivity and water level data for each of these deep monitor wells (DMW). Click on the desired well on the maps below to view a time series of the conductivity and water level data collected at the well. Data for certain Oahu DMWs have been combined into a single graph. Efforts are being made to update the remaining Oahu, Maui, and Hawaii DMWs.

OAHU WELLS

Halawa
Kunia Mauka
Kunia Middle
Waimalu
Waipahu
Waipio Mauka

LANAI WELLS

Total Reported Pumpage

MAUI WELLS

Iao
Mahinahina
Waiehu
Waihee

HAWAII WELLS

North Kona Basal
Kawaihae 3
Ouli 1
Ouli Kawamata
Puu Anahulu

North Kona High Level
USGS Waiaka Tank
Kanehoa

Kona Basal
Keopu 1 DMW
Kahaluu DMW
Kahaluu DMW-WL
Keauhou A
DWS Pahoehoe
Kalaoa N Kona

Kona High Level
USGS Komo
USGS Kealakekua
Kainaliu
Keauhou Kam 2

KEAUHOU WELLS

Total Reported Pumpage


Well Log Videos

The Commission is in the process of developing a library of well log videos to aid in the assessment of geologic and hydrologic conditions associated with drilled wells.  All videos are hosted on the Commission’s Vimeo site.  Click on the Island drop-downs below, then click on the active Well No. links below to view the video on Vimeo.

Click to View Island of Kauai Logs

Well No.
Date
Well Name/Notes
2-0738-001 09/01/1996 Kōke‘e-Waineke (Kōke‘e Exploratory Well)
     

Click to View Island of Oahu Logs

Well No.
Date
Well Name/Notes
3-1647-004 07/23/2001 Kaimuki A Well
3-2253-003 05/30/2000 Halawa Deep Monitor Well
3-2301-048 12/04/2000 Waiawa Exploratory Well
3-2301-048 04/20/2001 Waiawa Exploratory Well
3-2301-048 09/07/2001 Waiawa Exploratory Well
3-2449-002 03/27/2000 Windward Oahu Exploratory Well
3-2449-002 09/01/2000 Windward Oahu Exploratory Well
3-2503-003 11/10/2004 Kunia Mauka 2 Deep Monitor Well
3-2659-001 10/27/2010 Waipi‘o Mauka Deep Monitor
     

Click to View Island of Maui Logs

Well No.
Date
Well Name/Notes
6-5739-003 03/20/2001 Mahinahina Deep Monitor Well
6-5739-003 06/05/2001 Mahinahina Deep Monitor Well
6-5739-003 08/28/2001 Mahinahina Deep Monitor Well
     

Click to View Island of Hawaii Logs

Well No.
Date
Well Name/Notes
8-6337-001 04/13/1987 Pu‘ukapu
8-0139-001 04/18/1991 Ka‘u Exploratory Well
8-6428-001 01/25/1992 Honoka‘a (Hospital) Deepwell (Honokaa Well A)
8-6428-001 01/13/1993 Honoka‘a (Hospital) Deepwell (Honokaa Well A)
8-6428-002 01/23/2002 Honoka‘a (Hospital) Deepwell
8-3255-002 09/07/1993 Kainaliu Test Well
8-3457-004 01/31/1999 Kahalu‘u Deep Monitor Well
8-3457-004 03/28/2000 Kahalu‘u Deep Monitor Well
8-3457-004 07/31/2000 Kahalu‘u Deep Monitor Well
8-3858-001 06/28/2001 Keopu 1 Deep Monitor Well
8-3858-001 09/06/2001 Keopu 1 Deep Monitor Well
8-3858-001 09/25/2001 Keopu 1 Deep Monitor Well
8-3858-001 01/22/2002 Keopu 1 Deep Monitor Well