SOURCE CAPACITY PROJECT- SWRCB Compliance Order NO 05-13-18R002
On August 30, 2018, SCWC received a Compliance order from the SWRCB for a Source Capacity Violation due to SCWC unable to meet the Max Day Demands (MDD). The highest recorded MDD was on July 12, 2014 with a total production of 1.78 million gallons per day (MGD). Upon the receipt of the Compliance Order, SCWC was nearly complete with a secondary source of supply within the Mojave Water Agency boundaries located in the Alto Sub Basin. Well #11 was approved and permitted by the SWRCB, DDW on November 28, 2018 with a production of 251 gpm.
As required by the SWRCB Compliance Order, a feasibility study by Infrastructure Engineering Corporation (IEC) was completed with two alternative plans for bringing SCWC into compliance. Due to SCWC being a Shareholder owned company overseen by a Board of Directors elected by the Shareholders, the Board began exploring both alternatives for compliance. The Board of Directors planned to present both alternatives to the Shareholders at the SCWC Annual Shareholders Meeting on May 11, 2019 but did not have enough information regarding consolidation to ask for a vote. SCWC sent a letter to the SWRCB-DDW on April 19, 2019 requesting an extension of time to have a vote of the Shareholders as to the preferred alternative of compliance. On May 10, 2019, the SWRCB-DDW granted SCWC an extension of time until August 31, 2019 for preferred plan of compliance.
On August 17, 2019, Sheep Creek Water Company held a Special Meeting of the Shareholders to present the alternatives for compliance. The shareholders were informed that PPHCSD had rejected the Consolidation alternative, and presented with the question of whether they would support the Additional Facilities alternative, meaning that SCWC would need to drill additional facilities to comply with the Compliance Order. In the absence of a potential consolidation agreement upon which to vote, the shareholders gave the Board authority to proceed with drilling the required additional production facilities, by an affirmative vote of 3,304 out of the 4,340 votes cast. With the approval of the Sheep Creek Shareholders, SCWC’s Board is prepared to proceed with the development of additional facilities to bring SCWC into compliance with the Compliance Order.
Well 3A Rehabilitation
Well 3A was drilled in 2002 and put into service in 2003. Well 3A has only had regular maintenance during the 16 years of service. Well 3A has just under 31,000 hours and has pumped approximately 703 million gallons. The well has seen a drop in production and with recommended system maintenance from the CRWA Engineering Report for well rehabilitation, this was a good time to move forward with a rehabilitation of Well 3A. During an inspection by CRWA in 2018, the report noted that the casing may have damage, this will be inspected to verify and repaired if nessescary.
Pumping contractor Layne was contracted to rehabilitate Well 3A with the following work plan:
Remove pumping equipment and inspect
Brush and bottom bail fill
Post brush video
Bore Blast- Bore blast delivers pressure pulses of up to 3500 psi of air agitating and scouring buildup and loosening the gravel pack.
Dual Swab and Airlift
Post dual swab video
After inspection of the casing, it was determined that the damage noted by CRWA was not damage to the casing but was the casing vents that are cut and welded into the casing.
Before installation of the pumping equipment, the casing will be extended to bring the well head up to 24" above the the surface per the updated SWRCB standard. (12" was the standard when Well 3A was installed)
A new design pump will be installed along with new column pipe, the well head and motor will be refurbished and reinstalled.
Following the rehabilitation of Well 3A, Wells 4A and 8 will be scheduled for rehab as needed. Currently Wells 4A and 8 are operating properly.
Well 5 was rehabilitaed in 2015 and Well 2A was rehabilitaed in 2018.