The nonprofit Salmon Protection and Watershed Network is poised to drop its suit against Marin County over a stalled 2013 streamside conservation ordinance that it said inadequately addressed development impacts on endangered coho salmon in Lagunitas Creek. The Forest Knolls-based nonprofit is scrapping the case on grounds of irrelevance: the ordinance never took effect due to a “poison pill” provision meant to sideline implementation in the event of litigation—in this case, its own. With the suit scheduled for dismissal early next month in Marin Superior Court, the county has agreed to never reintroduce the ordinance. SPAWN will now focus on ensuring  the county drafts a supplemental environmental impact report for Marin’s 2007 countywide plan, which would include an analysis of the cumulative environmental impacts caused by development in the San Geronimo Valley, along with legally binding mitigation measures to reduce negative impacts. “If there are impacts, you have to actually do something and commit to doing it,” said Doug Karpa, the legal program director for SPAWN’s parent group, the Turtle Island Restoration Network. The environmental report was ordered by a state appellate court in 2014 and is being conducted by a Berkeley-based consultant firm at a cost of nearly $200,000. The court’s order marks the last outstanding legal quarrel between SPAWN and the county. SPAWN has sued the county three times since 2005 over creekside development in the valley. The dropped suit follows on the heels of a Marin Superior Court decision in December to award SPAWN over $650,000 in legal fees as compensation for litigation it has brought against the county dating back to 2007. The creekside ordinance would have eased 100-foot setback requirements for development along creeks and other waterways, as the county considered 100 feet too stringent for the Valley’s small lots. The passage of that ordinance ended a building moratorium in the Valley brought about by previous litigation from SPAWN that sparked the ire of many valley residents.