Governor's Office Emergency Services
Hazardous Materials Spill Report

    DATE: 11/25/2024
    TIME: 1305
    RECEIVED BY:
    CONTROL#:
    Cal OES - 24-6603
    NRC -
1.a. PERSON NOTIFYING Cal OES:
1. NAME:2. AGENCY:3. PHONE#:4. Ext:5. PAG/CELL:
Central Contra Costa Sanitary District
1.b. PERSON REPORTING SPILL (If different from above):
1. NAME:2. AGENCY:3. PHONE#:4. Ext:5. PAG/CELL:
2. SUBSTANCE TYPE:
2. a. SUBSTANCE:b.QTY:>=<Amount Measurec. TYPE:d. OTHER:e. PIPELINEf. VESSEL
>= 300 Tons
1. Raw Sewage=2500 Gal(s)SEWAGENoNo
2. = NoNo
3. = NoNo
g. DESCRIPTION: Caller states there was a release of 2,500 gallon of sewage that release from manhole due to a root and rag blockage. The release has been stopped and cleared but not contained with waterways impacted (unnamed creek leading to Los Trampas Creek).
h. STOPPAGE/CONTAINMENT:i. WATER INVOLVED: j. WATERWAY:k. DRINKING WATER IMPACTED
Stopped, Not containedYesunnamed creek leading to Los Trampas CreekUnknown
l. MARITIME VESSEL
m. KNOWN IMPACT
3. a. INCIDENT LOCATION: 1291 Clover Lane
b. CITY:c. COUNTY: d. ZIP:
Walnut Creek
Contra Costa County94597BAY AREA AQMD
4. INCIDENT DESCRIPTION:
a. DATE:b. TIME (Military):c. SITE:d. REPORTED CAUSE
11/25/20241134 Residence Blockage
e. INJURIESf. FATALITY g. EVACUATIONh. CLEANUP BY:
NoNoNoContractor
6. NOTIFICATION INFORMATION:
a. ON SCENE:b. OTHER ON SCENE: c. OTHER NOTIFIED:
d. ADMIN. AGENCY: Contra Costa County Health Services Departmente. SEC. AGENCY:
f. ADDITIONAL COUNTY: g. ADMIN. AGENCY:
h. NOTIFICATION LIST:
Cal GEM:
RWQCB Unit:

2
Cal OES Region: Coastal
AA/CUPA, DTSC, RWQCB, US EPA, USFWS, CDPH-D.O., CSWC Managers, DWP-DO, LANDS, EDO, PARKS & REC, Co/WP, Co/Hlth, Co/E-Hlth
Photo Attachment:
11. Cal OES Reg. melanie.gilbert@caloes.ca.gov
********* Control No: 24-6603 *********

Created by: Warning Center on: 11/25/2024 01:05:14 PM Last Modified by: Warning Center on: 11/26/2024 03:04:46 PM