Waimea Irrigation Systems Water Levels
CONSERVATION STATUS: MANDATORY 10% WATER CONSERVATION
November 4, 2013
TO: Customers of the Waimea Irrigation System
FROM: Waimea Irrigation System
SUBJECT: Mandatory Water Conservation
As a result of the low rainfall condition over the past several months, the Waimea Irrigation System has commenced pumping water from the Puu Pulehu Reservoir to the Puukapu 60 MG Reservoir for the past several weeks. According to the National Weather Service’s hydrology reports, Kamuela Upper gage reported 11% of normal rainfall and Kamuela I reported a mere 5% of normal. The Kawainui Stream gage reported only 45% of normal flow.
Effective Monday, November 4, 2013, an emergency declaration was announced by the Waimea Irrigation System and requests your cooperation in implementing a mandatory 10% reduction in irrigation water consumption until further notice.
In accordance with §4-157-4, Hawaii Administrative Rules, the Administrator and Chief Engineer may declare emergency conditions and implement conservation measures to forestall a water shortage or interruptions in water service.
The Department of Agriculture has established a “link” to this webpage so water users may track the irrigation system’s availability of irrigation water. The link provides the daily reservoir level, provides National Weather Service information and staff’s comments on the condition of the irrigation system.
Please contact us, toll free, at 974-4000, extension 3-9473, if you have any questions.
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CURRENT WATER LEVEL as of: 12/10/2013: 28.50 feet (22.2 MG)
- 12/09/2013: 29.0 feet (22.8 MG)
- 12/06/2013: 31.70 feet (26.1 MG)
- 12/05/2013: 32.50 feet (27.2 MG)
- 12/04/2013: 33.50 feet (28.4 MG)
- 12/03/2013: 34.00 feet (29.1 MG)
- 12/02/2013: 34.50 feet (29.8 MG)
PUU PULEHU RESERVOIR
CURRENT WATER LEVEL as of: 12/10/2013: 12.50 feet (69.1 MG)
- 12/09/2013: 12.50 feet (69.1 MG)
- 12/06/2013: 12.50 feet (69.1 MG)
- 12/05/2013: 12.50 feet (69.1 MG)
- 12/04/2013: 12.50 feet (69.1 MG)
- 12/03/2013: 13.00 feet (72.1 MG)
- 12/02/2013: 13.00 feet (72.1 MG)
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WAIMEA IRRIGATION SYSTEM – UPDATE
November 1, 2013
Waimea Transfer Ditch Improvements:
- The Contractor installed approximately 3,300 feet of dual 18-inch pipe from Nani Waimea Street to Mamalahoa Highway and has begun grassing the exposed area.
- The Contractor began installation of pipe in the section from Nani Waimea Street to the Puukapu Reservoir. The anticipated completion date for this portion of work is November 8.
- Upcoming work is the portion through Mamalahoa Highway. Once started, the contractor anticipates 3 weeks to complete this portion of work.
- Construction for the overall project is anticipated to be completed by the end of January.
- Construction of this project is not expected to have any impact on water availability, unless it coincides with the Puukapu/Puu Pulehu Reservoir dam safety improvements projects. If this should occur, DOA will coordinate timing of the projects with the corresponding contractors.
Dam Safety – Puukapu & Puu Pulehu Reservoirs:
- DOA’s request for use of Hawaiian Homelands (DHHL) land to install a temporary 250,000 to 350,000 gallon water storage basin adjacent to the Puukapu Reservoir was approved by the DHHL Commission in June. The temporary basin which will include a liner, berms, perimeter fence, and piping to connect to the main distribution pipeline will be located in an area adjacent to the spillway on northern side of the reservoir. DOA signed and returned a Right-of-Entry (ROE) agreement with DHHL in late October.
- For the Puukapu Reservoir, DOA completed its review of the Contractor’s proposal to install the temporary water storage basin and to address other miscellaneous changes required by DLNR. Since the increase in cost was higher than expected and the Puu Pulehu Dam Alteration permit is still under review, the Puu Pulehu portion of work will be deleted from the existing contract and rebid in the future.
- After DOA receives the fully executed ROE agreement from DHHL for the Puukapu Reservoir, DOA will need to conduct a preconstruction meeting with DLNR and the Contractor before the project can begin. DHHL estimates another 4 weeks to get the ROE agreement fully executed (late November).
- Notice to Proceed (NTP) with construction will not be issued by DOA until both the Puukapu and Puu Pulehu Reservoirs are completely filled.
- The Puukapu Reservoir work is anticipated to be completed 6 months after the Notice to Proceed date is issues to the Contractor. Four to six weeks is being set aside to install and monitor the performance of the temporary water storage tank/ bypass lines.
- To establish baseline groundwater levels during construction of the Puukapu Reservoir, 5 monitoring wells will have to be installed at the beginning of the project. The Contractor will be required to lower the water level in the Puukapu Reservoir to about 40 feet to install the monitoring wells. Once installed, water levels through the embankment will have to be monitored for two weeks. Pending DLNR review and approval of the monitoring data, the Contractor will then be able to drain the reservoir to begin interior reservoir work.