You are logged-in as: PUBLIC.
SSO - General Information  
SSO Event ID: 855155 Regional Water Board: 2
Spill Location Name: Rancho Vista Trailer Park (010619SVD) Agency: Sonoma County Water Agency (SCWA)
WDID: 2SSO10196 Sanitary Sewer System: Sonoma Valley County S.D. CS
File Name File Description Date/Time Uploaded Status
855155_Version_1.4.pdf Certified spill pdf : 855155_Version_1.4.pdf 01/17/2019 - 18:36:40 OK
Rancho Vista Trailer Park Map and Pictures.pdf Rancho Vista Trailer Park Map and Pictures 01/09/2019 - 15:37:40 OK

 
Glossary of Terms
 
Locate the spill on map
 
Certified by Troy Winton on 2019-01-17 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? 324837
  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) 0
  c) Estimated spill volume that reached a drainage channel that flows to a surface water body? 0
  d) Estimated spill volume recovered from a drainage channel that flows to a surface water body? 0
  e) Estimated spill volume discharged directly to a surface water body? 0
  f) Estimated spill volume recovered from surface water body? 0
  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.) 0
  h) Estimated spill volume recovered from the discharge to land? (Do not include water used for clean-up) 0
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)
324837 0 0 324837
 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? Yes
 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? No
 
Physical Location Details
 6 - Spill location name: Rancho Vista Trailer Park (010619SVD)
 7 - Latitude of spill location: 38.3203
 8 - Longitude of spill location: -122.48774
 9 - County: Sonoma
 10 - Regional Water Quality Control Board: 2    
 11 - Spill location description:
 
Spill Details
 12 - Number Of appearance points: 1
 13 - Spill appearance point: Manhole
 14 - Spill appearance point explanation:
 15 - Final spill destination:
Separate Storm Drain
 16 - Explanation of final spill destination:
 17 - Estimated spill start date/time: 2019-01-06 18:30:00.0
 18 - Date and time sanitary sewer system agency was notified of or discovered spill: 2019-01-06 21:04:00.0
 19 - Estimated Operator arrival date/time: 2019-01-06 21:04:00.0
 20 - Estimated spill end date/time: 2019-01-07 00:08:00.0
 21 - Spill cause:
 22 - Spill cause explanation:
 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: 0
 27 - Material of sewer pipe at the point of blockage or failure:
 28 - Estimated age of sewer asset at the point of blockage or failure: 0
 29 - Spill response activities:
Cleaned-Up
 30 - Explanation of spill response activities:
 31 - Spill response completion date: 2019-01-07 02:00:00.0
 32 - Spill corrective action taken:
Plan rehabilitation or replacement of sewer
 33 - Explanation of spill corrective action taken:
NA
 34a - Is there an ongoing investigation? No
 34b - Reason for ongoing investigation?
  35 - Visual inspection results from impacted receiving water:
 36 - Health warnings posted? Yes
 37 - Did the spill result in a beach closure (If YES, answer questions 38)? No
 38 - Name of impacted beach(es) (enter NA if not applicable):
 39 - Name of impacted surface water(s) (enter NA if not applicable): Sonoma Creek
 40 - Water quality samples analyzed for:
Dissolved oxygen
  41 - Explanation of water quality samples analyzed for:
 42 - Water quality sample results reported to:
Regional Water Quality Control Board
  43 - Explanation of water quality sample results reported to:
  44 - Explanation of volume estimation method used:
24 open manhole with an assumed flow of 2ft/second (2.5in) (24in * 3.14) (24in/second) (1ft3/1728in3) (7.48gal/1ft3)(60sec/1min) = 1174.36gpm (1.25in) (24in * 3.14) (24in/second) (1ft3/1728in3) (7.48gal/1ft3)(60sec/1min) = 587.18gpm 2.5in water depth for 236min x 1174.36gpm = 277,148.96gal 1.25in water depth for 81min x 587.18gpm = 47561.58gal (3/4 rim to plume lid on) for 21min x 6gpm = 126gal
 
Notification Details
  45 - Cal OES Control Number
190129
  46 - Cal OES Called Date/Time
2019-01-06 21:40:00.0
  47(a) - Name and Tittle (Contact person who can answer specific questions about this SSO)
Daniel Colvin WA Lead MW
  47(b) - Contact Person Phone Numner
7074956408

© 2005 State of California.  Conditions of Use  Privacy Policy