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2010-100
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Last modified
2/10/2016 11:36:45 AM
Creation date
10/1/2015 2:10:39 AM
Metadata
Fields
Template:
Official Documents
Official Document Type
Work Order
Approved Date
04/20/2010
Control Number
2010-100
Agenda Item Number
12.J.2.
Entity Name
Camp Dresser & McKee Work Order #13
Subject
Well No.7 South County R.O. Water Treatment
Supplemental fields
SmeadsoftID
9650
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CDM prepared the design accordingly, and in doing so determined that providing for gravity <br /> feed would provide only minimal slope in the pipeline and would result in the pipeline <br /> intersecting the lift station at an undesirable elevation . CDM recommended that the County <br /> consider constructing a forcemain to alleviate the slope concerns . The system was then <br /> redesigned to reflect the change . A meeting with the County' s environmental representative on <br /> site indicated that HDD through the conservation area would not be required, and open <br /> trenching would be an acceptable alternative . In order to realize the cost savings of shortening <br /> the HDD, CDM redesigned the gravity line with open trenching through the conservation area <br /> and HDD tinder 20th Avenue SW only . This alleviated the concerns with the slope and invert <br /> elevation of the pipeline . <br /> The original scope of services included survey work to survey the proposed raw water pipeline <br /> corridor, existing utilities, and potential conflicts within the park property only . By adding the <br /> sanitary sewer portion, additional survey work was needed to locate both the onsite (in the <br /> park) and offsite (under 20th Avenue SW) utilities, elevations, and potential conflicts . A ground <br /> Penetrating Radar (GPR) survey was also needed to prepare the HDD profile . These additional <br /> professional services are reflected in the amendment project budget. The GPR portion cost an <br /> additional $500 in services, while an additional $1 , 000 was required for the conventional survey <br /> for the sanitary line . The Outside Professionals budget has been increased by $ 1 ,500 for this <br /> work (in addition to the proposal from Entrix) . The amended total Outside Professionals budget <br /> has been increased from $4,500 to $ 10,200 accordingly, inclusive of all sub -contractors (increase <br /> of $5, 700) . <br /> Once the various redesigns were completed, the County Recreation Department opted to <br /> construct a septic tank system for the restroom facility in lieu of the sanitary sewer connection <br /> in order to meet the grant funding deadlines associated with their project. The labor estimate <br /> provided in the attached budget reflects actual costs incurred . <br /> TASK 4. 0 INSTRUMENTATION AND PROGRAMMING <br /> No changes were made or are anticipated to be made to the instrumentation services . <br /> TASK 5. 0 WELL CONSTRUCTION PERMITTING <br /> No changes were made or are anticipated to be made to the well permitting effort <br /> TASK 6. 0 CONSUMPTIVE USE PERMIT MODIFICATION (ONLY IF NECESSARY) <br /> This task was authorized in the event that the County requested CDM' s assistance in modifying <br /> or completing the Consumptive Use Permit (CUP) that is currently under review by SJRWMD . <br /> No additional funds are being requested for this task at this time; however, costs have been <br /> incurred as described in Subtask 6 . 3 below . <br /> Subtask 6 . 1 Review of Existing MODFLOW/SEAWAT Models <br /> No changes were made or are anticipated to be made to this subtask . <br /> Subtask 6. 2 Preparation of Technical Memorandum <br /> No changes were made or are anticipated to be made to this subtask . <br /> Subtask 6 . 3 Application for CUP Modification <br /> The County requested that CDM assist with completing the remaining modeling efforts ( at the <br /> urging of SJRWMD) to expedite issuance of the final Consumptive Use Permit ( CUP) . Prior to <br /> cm 3 ;12756. doc <br />
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