Community Petition
DEMAND AIR QUALITY
ACCOUNTABILITY FROM
GRANITE ROCK QUARRY
Granite Rock Sand Quarry on Quail Hollow Road mines fine crystalline silica sand. The American Lung Association warns this dust causes cancer, silicosis, and chronic lung disease. Their employees get protective breathing equipment as required by state and federal law — the neighbors breathing the same air get nothing.
The quarry performs an air quality test once a year during the wet season — February or March — and measures air flowing south to north. But neighbors report dust traveling east to west, especially during dry summer months when exposure is worst. The quarry has never been required to test where the dust actually reaches homes.
County Supervisor Monica Martinez has met with Granite Rock but is unable to require the quarry to test air quality in our neighborhood. Now Granite Rock is planning to remove the northwest ridge face — the last natural barrier shielding our homes from quarry dust.
WE DEMAND:
1
AIR QUALITY TESTING DURING DRY SUMMER MONTHS
On the northwest ridge of the quarry, where neighbors have been reporting persistent dust exposure — not during the wet season when dust is naturally suppressed.
2
A FULL ENVIRONMENTAL IMPACT STUDY
An independent study to determine how quarry operations are affecting the health of neighbors and the broader San Lorenzo Valley.
3
PRESERVE THE NORTHWEST RIDGE BUFFER
Immediate hold on ridge removal until air quality testing and the environmental impact study are completed and reviewed.
6 SIGNATURES
J
Jeanie H.
95005 · Mar 24, 2026
✓
D
Damjan C.
95014 · Mar 23, 2026
✓
N
Nina G.
95005 · Mar 23, 2026
✓
D
Dave B.
95005 · Apr 19, 2026
✓
M
Mona Butler B.
95005 · Apr 19, 2026
✓
N
Nick B.
95005 · Apr 19, 2026
✓
SIGN THIS
PETITION
Add your name to demand air quality accountability from Granite Rock Quarry. Only your first name and last initial will be displayed publicly.