California Integrated Water Quality System

You are logged-in as: PUBLIC.

SSO - General Information

SSO Event ID:	820915	Regional Water Board:	9
Spill Location Name:	SR#3876900	Agency:	San Diego City (City Attorney's Office at Civic Center Plaza)
WDID:	9SSO10658	Sanitary Sewer System:	San Diego City CS (Wastewater Collection System)

File Name	File Description	Date/Time Uploaded	Status
820915_Version_1.2.pdf	Certified spill pdf : 820915_Version_1.2.pdf	01/22/2016 - 19:43:41	OK
820915_Version_2.1.pdf	Certified spill pdf : 820915_Version_2.1.pdf	02/23/2016 - 11:07:00	OK
820915_Version_3.1.pdf	Certified spill pdf : 820915_Version_3.1.pdf	02/24/2016 - 19:26:12	OK
SSO Technical Report Tecolote Canyon Spill.pdf	Technical Report for Spill Event ID 820915	02/24/2016 - 19:21:12	OK

General Info

Glossary of Terms

Locate the spill on map

Certified by Agnes Generoso on 2016-02-24 00:00:00.0

1 - Spill Type:

Category 1

2 - Estimate Spill Volumes

a) Estimated spill volume that reached a separate storm drain that flows to a surface water body?

b) Estimated spill volume recovered from the separate storm drain that flows to a surface water body? (Do not include water used for clean-up)

c) Estimated spill volume that reached a drainage channel that flows to a surface water body?

6750734

d) Estimated spill volume recovered from a drainage channel that flows to a surface water body?

188640

e) Estimated spill volume discharged directly to a surface water body?

f) Estimated spill volume recovered from surface water body?

g) Estimated spill volume discharged to land? (Includes discharges directly to land, and discharges to a storm drain system or drainage channel that flows to a storm water infiltration/retention structure, field, or other non-surface water location.)

h) Estimated spill volume recovered from the discharge to land? (Do not include water used for clean-up)

Estimated Total spill volume Reach Surface Water (a-b+c+e)	Estimated Total spill volume Reach Land (g)	Estimated Total spill volume Recovered (b+d+f+h)	Estimated Total spill volume (a+c+e+g)
6750734	0	188640	6750734

3 - Did the spill discharge to a drainage channel and/or surface water?

Yes

4 - Did the spill reach a separate (i.e.,not combined) storm drainpipe?

5 - If spill reached to a separate storm drainpipe, was all of the wastewater fully captured from the separate storm drain and returned to the sanitary sewer system?

Not Applicable - Spill did not reach a separate storm drainpipe

Physical Location Details

6 - Spill location name:

SR#3876900

7 - Latitude of spill location:

32.80677

8 - Longitude of spill location:

-117.19353

9 - County:

San Diego

10 - Regional Water Quality Control Board:

11 - Spill location description:

Tecolote Creek Canyon

Spill Details

12 - Number Of appearance points:	1

13 - Spill appearance point:	Gravity Mainline

14 - Spill appearance point explanation:	A section of 15 inch pipe was broken off due to unprecedented flooding and severe erosion as a consequence of the recent El Nino storm.

15 - Final spill destination:	Beach;Drainage Channel;Surface Water

16 - Explanation of final spill destination:	Sewer entered the creek and reached Mission Bay

17 - Estimated spill start date/time:	2016-01-05 20:00:00.0

18 - Date and time sanitary sewer system agency was notified of or discovered spill:	2016-01-10 09:08:00.0

19 - Estimated Operator arrival date/time:	2016-01-10 10:45:00.0

20 - Estimated spill end date/time:	2016-01-10 18:00:00.0

21 - Spill cause:	Natural Disaster

22 - Spill cause explanation:	A section of 15 inch pipe was broken off due to unprecedented flooding and significant erosion as a result of the recent El Nino storm.
23 - Where did failure occur?	Gravity Mainline

24 - Explanation of Where failure occured:
25 - Was this spill associcated with a storm event?	Yes
26 - Diameter of sewer pipe at the point of blockage or failure:	15
27 - Material of sewer pipe at the point of blockage or failure:	VC
28 - Estimated age of sewer asset at the point of blockage or failure:	0

29 - Spill response activities:	Mitigated Effects of Spill;Other (specify below);Returned Portion of Spill to Sanitary Sewer System

30 - Explanation of spill response activities:	Set up bypass and containment to stop the overflow. In addition, open the interceptor down stream of the break to redirect sewage back into the system. Implemented pumping operations of sewage in the creek.

31 - Spill response completion date:	2016-01-10 20:00:00.0

32 - Spill corrective action taken:	Other (specify below)

33 - Explanation of spill corrective action taken:	This section of main in the canyon is being relocated away from the embankment to protect from future erosion. The current section of pipe has been bypassed pending relocation of main.

34a - Is there an ongoing investigation?	No

34b - Reason for ongoing investigation?
35 - Visual inspection results from impacted receiving water:	The creek level rose to the level of the embankment and with such force causing extensive damage throughout the canyon and private property.

36 - Health warnings posted?	Yes

37 - Did the spill result in a beach closure (If YES, answer questions 38)?	Yes

38 - Name of impacted beach(es) (enter NA if not applicable):	Mission Bay and Fiesta Island

39 - Name of impacted surface water(s) (enter NA if not applicable):	Tecolote Creek tributary to Mission Bay

40 - Water quality samples analyzed for:	Biological indicator(s) - specify below

41 - Explanation of water quality samples analyzed for:	Coliform Enterococcus

42 - Water quality sample results reported to:	County Health Agency

43 - Explanation of water quality sample results reported to:	County Health and Storm Water Pollution

44 - Explanation of volume estimation method used:	Calculations using flow metering and sewer modeling data.

Notification Details

45 - Cal OES Control Number	160206

46 - Cal OES Called Date/Time	2016-01-10 20:00:00.0

47(a) - Name and Tittle (Contact person who can answer specific questions about this SSO)	Eddie Salinas Principal Water Utility Supervisor

47(b) - Contact Person Phone Numner	8586144006