Santa Margarita quarry back on the table
May 15, 2017
Two years after losing their bid to operate a rock quarry in rural Santa Margarita, the owners of the proposed quarry filed a new application for a reduced project. In the revised application, truck trips are reduced by 64 percent.
In 2014, the San Luis Obispo County Planning Commission voted 3-2 to reject a proposed mining project that would have produced up to 500,000 tons of aggregate a year on a property along Highway 58. At the time, county counsel recommended the commissioners not certify the project’s environmental impact report causing some to question if the county’s legal department was biased against the project.
Proponents of the quarry claimed naysayers had exaggerated the impacts the project would have on the community while opponents said the quality of life for many in the small rural community would be permanently marred because of anticipated traffic and noise impacts.
In 2015, the San Luis Obispo County Board of Supervisors voted 3-2 against an appeal of the planning commission’s rejection of the project.
On May 8, the applicants applied for a reduced project, according to a letter to the county from T. Keith Gurnee, an agent for Las Pilitas. In the letter, Gurnee says the applicants have “taken to heart the concerns of the Santa Margarita community.”
“In response to the community’s concerns, we have come back and taken a hard look at the project, and have brought back a reduced project alternative,” Gurnee said.
The new proposal reduces production to a maximum of 250,000 tons of rock per year. Because the new proposal does not include recycling, which is offered at the adjacent Hansen quarry, the average truck traffic will be reduced to 40 to 50 trips a day, depending on truck weight. In the previous proposal, 136 average daily truck trips were anticipated.
In addition, the sponsors of the project are considering rerouting a portion of the trucks to Santa Barbara Road as opposed to driving through downtown Santa Margarita. This is anticipated to reduce the average truck traffic through downtown Santa Margarita to 16 trips per day.
The Hansen quarry sends an average of 40 percent of its trucks through downtown Santa Margarita with the other 60 percent accessing Highway 101 through Santa Barbara Road. According to a 2013 environmental impact report, the Hansen quarry runs an average of 82 truck trips a day through downtown Santa Margarita.
By reducing the mining at the Las Pilitas quarry in half, blasting would be reduced to 12 times per year and will only be permitted between 9 a.m. and 5 p.m.
In the 80s, a state geological survey deemed the Las Pilitas site a rock resource area and the county zoned the property with mining as an approved use. Then in 2012, a California Geologic Survey report said California needs more aggregate sources to meet future demands. Rock quarries produce aggregate that is used in making both asphalt and concrete.
In May 2015, supervisors Bruce Gibson, Adam Hill and Frank Mecham voted against the quarry plan after a day-long hearing, while supervisors Debbie Arnold and Lynn Compton cast the two votes in favor of the project. Arnold noted state reports of an impending shortage of aggregate needed for the construction of low-cost housing and road repairs as one of her reason she supported the project.
Hill argued that Arnold was untruthful and that there were no state reports of an impending gravel shortage in the process of being published.
However, the State Mining and Geology Board published a report on July 1, 2015, that says the Las Pilitas site has “significant deposits of aggregate material.” As a result of the designation, the county must consider the importance of the aggregate to the regional area before making land use decisions, according to California Public Resource Code Section 2763.
If the current permit is approved, long time San Luis Obispo County residents Steve Souza and Darren Shetler can construct the infrastructure for and operate a 41 acre rock quarry on the property located on Highway 58 about three miles outside Santa Margarita.
The county has 30 days to review the application for a conditional use permit for completeness.
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