To: Members of the Castle Rock Water Commission
From: Mark Marlowe, P.E., Director of Castle Rock Water
Shawn Griffith, Assistant Director of Operations
Mark Billman, EHS Program Manager
Title
Resolution Approving a Services Agreement between the Town of Castle Rock and Burns & McDonnell for an Arc Flash Study
Town Council Agenda Date: February 3, 2026
Body
________________________________________________________________________________
Executive Summary
Castle Rock Water (CRW) staff requests Town Council approval for a services agreement to conduct a comprehensive arc flash hazard and short-circuit study across all CRW electrical facilities with Burns & McDonnell Engineering for $481,017, with a 5% Town-managed contingency of $24,051, for a total authorization request of $505,068 (see Attachment A). The study will be completed by December 31, 2027.
Arc flash and electrical shock hazards have long been known to pose significant risk in the workplace, potentially causing severe injuries or fatalities. This assessment will help reinforce CRW’s commitment to developing and maintaining safe workplaces across all facilities in regard to electrical safety.
Notification and Outreach Efforts
No public outreach is planned. Work will be performed at various CRW facilities, out of the public eye, to conduct a CRW facility equipment worker health and safety assessment.
Discussion
The purpose of this project is to collect data from electrical equipment across forty-nine (49) CRW sites, to provide individual short-circuit, arc flash hazard, and device coordination reports for each site. This data will be used to provide updated electrical one-line diagrams and arc flash and shock hazard labels for each piece of equipment covered by the reports.
The CRW sites include:
• Five water treatment facilities
• Eleven pump stations
• Nine lift stations
• One surface water diversion site
• Twenty-three groundwater well sites.
Through a competitive bid process, CRW solicited proposals from three qualified engineering firms; their proposal costs are shown below:
|
Vendor |
Proposal |
|
Burns & McDonnell Engineering |
$481,017 |
|
Logical Systems LLC |
$500,300 |
|
Tetra Tech |
Declined to Bid |
Staff selected Burns & McDonnell Engineering as they have a fully staffed local electrical engineering team prepared to provide CRW with the best value and pricing to complete the work. Tetra Tech attended the pre-bid project walk but declined to bid as they did not have adequate local electrical engineering staff to complete the project.
Budget Impact
Funding for this project will come from the Water, Water Resources, and Wastewater Plant Engineering Services funds after a first-quarter budget amendment, as follows:
|
Fund Name |
Account Number |
Cost |
Contingency |
Balance after Budget Amendment |
|
Water |
210-4230-442.30-40 |
$160,339 |
$8,017 |
$168,356 |
|
|
211-4340-443.30-40 |
$160,339 |
$8,017 |
$168,356 |
|
|
213-4530-445.30-40 |
$160,339 |
$8.017 |
$168,356 |
|
Total |
|
$481,017 |
$24,051 |
$505,068 |
Staff Recommendation
Staff recommends a services agreement with Burns & McDonnell Engineering for $481,017, with a 5% Town-managed contingency of $24,051, for a total authorization request of $505,068.
Proposed Motion
“I move to recommend to Town Council approval of the Resolution as presented”
Attachments
Attachment A: Resolution (Not Attached)
Exhibit 1: Agreement (Not Attached)