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Public works details water saddle replacements, recommends nonferrous parts
Summary
Public-works staff described a budgeted saddle-replacement program, explained a third-party study that tied past iron-saddle failures to mixed metals and soil chemistry, and said the department will replace saddles with one-piece nonferrous fittings and present contractor bids at next week's council meeting.
Public works staff gave a status update on two budgeted items: replacement saddles and a multi-tool (Bobcat) toolkit.
The public-works presenter (speaker 10) said saddle replacements are approved in the current budget and that buying now secures prior-year pricing. He summarized a third-party corrosion study that identified multiple failure mechanisms—mixed-metal electrochemical corrosion where copper laterals contact iron saddles, improper grounding/backfeed from electrical panels, and static-current effects in plastic mains. The consultant recommended breaking copper lines with HDPE plastic transitions and using nonferrous, one-piece saddles to remove sacrificial iron that had been corroding.
Staff said Richfield Station and other neighborhoods experienced higher saddle-failure rates tied to older cast-iron saddles sourced in the 1994–2005 period; newer neighborhoods built with stainless or HDPE connections have not seen similar failures. The public-works presenter offered to provide the study and photographs and said he will bring vendor quotes and further detail to the council at the next meeting.
On equipment, staff described a budgeted multi-tool attachment and replacement for an 11-year-old toolkit, and committed to bring competitive distributor bids to the next council meeting.
Next steps: public works will circulate the corrosion study and provide a detailed vendor/bid package for both saddle replacements and the multi-tool purchase at the upcoming council meeting.
