Governor's Office Emergency Services
Hazardous Materials Spill Report

    DATE: 09/25/2023
    TIME: 1900
    RECEIVED BY:
    CONTROL#:
    Cal OES - 23-6148
    NRC - 1380095
1.a. PERSON NOTIFYING Cal OES:
1. NAME:2. AGENCY:3. PHONE#:4. Ext:5. PAG/CELL:
NRC
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. Unknown Oil Sheen=Unknown SheenPETROLEUMNoNo
2. = NoNo
3. = NoNo
g. DESCRIPTION: Per NRC "Caller reported a rainbow sheen in a creek believed to possibly be from a pipeline. Caller stated that in past history there has been a leak of gasoline from a pipeline in this area of the creek."

Pipeline Type: UNKNOWN
DOT Regulated: UNKNOWN
Pipeline Above/Below Ground: ABOVE
Exposed or Under Water: NO
Pipeline Covered: UNKNOWN
---WATER INFORMATION---
Body of Water: WALNUT CREEK
Tributary of:
Nearest River Mile Marker:
Water Supply Contaminated: UNKNOWN
h. STOPPAGE/CONTAINMENT:i. WATER INVOLVED: j. WATERWAY:k. DRINKING WATER IMPACTED
Unknown if stopped, Unknown if containedYesWalnut CreekUnknown
l. MARITIME VESSEL
No		m. KNOWN IMPACT
Unknown
3. a. INCIDENT LOCATION: Lincoln and Broadway
b. CITY:c. COUNTY: d. ZIP:
Walnut Creek
Contra Costa CountyBAY AREA AQMD
4. INCIDENT DESCRIPTION:
a. DATE:b. TIME (Military):c. SITE:d. REPORTED CAUSE
09/05/20231850 Waterways Unknown
e. INJURIESf. FATALITY g. EVACUATIONh. CLEANUP BY:
NoNoNoUnknown
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: Northern
RWQCB Unit:

2
Cal OES Region: Coastal
AA/CUPA, DTSC, RWQCB, US EPA, USFWS, DFW-OSPR, Cal GEM, CDPH-D.O., CSWC Managers, DWP-DO, EB PARKS, LANDS, EDO, FDC, Cal OES REG, LDO, PARKS & REC, SFM, Co/WP, Co/Hlth, Co/E-Hlth
Photo Attachment:
11. Cal OES Reg. byron.green@caloes.ca.gov
********* Control No: 23-6148 *********

Created by: Warning Center on: 09/25/2023 07:00:07 PM Last Modified by: Warning Center on: 09/26/2023 01:24:05 AM