Protect the Tri Valley

We request your urgent assistance regarding CEMEX Construction Materials Pacific LLC’s SMP-23 plan amendment application dated December 2016. This amendment is designed to significantly expand mining for aggregate in the chain of lakes including Lake A in the southwest corner of Livermore through the year 2056. Our society was established to protect and inform our communities’ of any concerns that may have a significant negative impact to our families, schools, businesses, traffic and the surrounding environment of Livermore and Pleasanton. It is our belief that the proposed amendments to SMP-23 will greatly impact our communities and that supporting documentation is outdated and fails to properly address current demographics.

CEMEX’s mining under theSMP-23 was originally approved utilizing an Environmental Impact Report (EIR) from 1981, which had been completed well before significant growth of more than 70,000 additional citizens to Livermore and Pleasanton. The 1980 Census lists populations for Livermore at 48,349 and Pleasanton at 35,160 70,285. Current Census figures from 2010 indicate Livermore has a population of 80,968, a 67.4% increase in population. Pleasanton’s population has grown to 70,285, a 99,9% increase in population. The majority of the new population reside in newer communities developed in the 1990’2 – 2000’s and are directly adjacent to the proposed mining areas per the updated SMP-23 plan-amendment. These neighborhoods are comprised of more than 1500 homes in Pleasanton and Livermore with a current appraised value exceeding $1,800,000,000. In addition, approximately 150 homes are within 200-300ft the proposed mining area.