Waimanalo Irrigation System Water Level

CURRENT WATER LEVEL AS OF:   7/29/2015: 59.75  feet (54.86  MG)

Previous water levels:

  • 7/28/2015: 60.0  feet (55.30  MG)
  • 7/27/2015: 59.50  feet (54.41  MG)
  • 7/24/2015: 59.0  feet (53.52  MG)
  • 7/23/2015: 59.50  feet (54.41  MG)
  • 7/22/2015: 59.50  feet (54.41  MG)
  • 7/21/2015: 59.50  feet (54.41  MG)
  • 7/20/2015: 60.0  feet (55.30  MG)


SYSTEM STATUS UPDATE – August 22, 2014

Customers of Waimanalo Irrigation System:

Tropical Storm Iselle caused substantial damage to county infrastructure in Puna and Kau Districts on the Island of Hawaii leaving many residents without electricity or water.  Fortunately, the other islands in the chain were not as heavily impacted, except for isolated pockets of high winds at higher elevation locations of various other islands.

The Waimanalo Irrigation System did not experience any negative impacts from Iselle and the improvements made to the irrigation infrastructure in Maunawili Valley held up well against fallen trees, branches and other debris.  Heavy rainfall was not experienced during this storm event and staff was able to clear the intakes and ditches quickly to ensure normal water flow.  As a precaution, staff lowered the level of the Waimanalo Reservoir and reduced inflow from Maunawili Valley to prevent potential overtopping of the reservoir.  An “after-action” assessment of our system showed that all is working well and as designed.

The Department of Agriculture has established a “link” on our website so you may track the progress of the irrigation system’s availability of irrigation water.  The link will provide a daily reservoir level, National Weather Service information and staff’s comments on the condition of the Waimanalo Irrigation System.  Our website address is: http://hdoa.hawaii.gov/arm/irrigation-systems/waimanalo-irrigation-system-water-level/

NOTE:  Pursuant to §4-157-12, Discontinuance of service. – Water service may be refused or discontinued by the department if the water bill has not been paid within thirty days after the mailing or presentation thereof or if the consumer fails to comply with any of the applicable rules.  However, acreage assessments shall continue in spite of the discontinuance of service.

Please contact us at (808) 973-9473 if you have any questions.

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Upon notification by the Waimanalo Irrigation System, the following restrictions will be implemented in phases as the reservoir levels approach pre-determined levels.  However, implementation of a specific conservation phase is approximate and may be put into effect based on factors such as a significant increase in system-wide consumption or upcoming weather conditions.

PHASE I –  Cautionary Low – Voluntary Water Conservation – 10%

  • Distribution days will be Sundays to Saturdays – 24 hours a day
  • Voluntary reduction of water consumption by 10% is requested.

PHASE I – MODIFIED – Mandatory Water Conservation – 10%

  • Distribution days will be Mondays to Fridays only, no weekends
  • Distribution hours will be 24 hours a day
  • Mandatory reduction of water consumption by 10%.

PHASE II – (±27 ft.)   Mandatory Water Conservation – 20%

  • Distribution days will be Mondays to Fridays
  • Distribution hours will be from 7:30 a.m. to 3:30 p.m.
  • Mandatory reduction of water consumption by 20%

PHASE III – (±20 ft.) Critical Low – Mandatory Water Conservation

  • Distribution days will be Mondays, Wednesdays and Fridays.
  • Distribution hours will be from 7:30 a.m. to 3:30 p.m.

Please contact us at 973-9473, if you have any questions.