North Bay Wildfires: Response & Recovery

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1 North Bay Wildfires: Response & Recovery December 1, 2017 Cristina Grosso Scott Dusterhoff Meg Sedlak

2 Presentation Overview Overview of Wildfires [Scott] Water Quality Monitoring [Meg] Response & Recovery Project Tracking [Cristina] Sediment Monitoring [Scott]

3 Overview of Wildfires

4 The Stories

5 The Stories

6 The Stories

7 General Wildfire Overview Redwood Duration: October 8-31 Sulphur Acres burned: ~200,000 Pocket Tubbs Structures lost: ~6,950 Nuns Atlas Lives lost: 42 Source: R3MP Watershed Atlas 37

8 WERT Post-Fire Assessment Burn Severity Nuns Fire Atlas Fire ~57,000 ac burned ~20% at med to high severity ~53,000 ac burned ~25% at med to high severity Source: Nuns Fire WERT Final Report Source: Atlas Fire WERT Final Report

9 WERT Post-Fire Assessment Debris Flow Hazard Nuns Fire Atlas Fire ~4% of burned area w/ high debris flow hazard ~7% of burned area w/ high debris flow hazard Source: Nuns Fire WERT Final Report Source: Atlas Fire WERT Final Report

10 WERT Post-Fire Assessment Erosion Rates Nuns Fire Atlas Fire ~10-fold increase in predicted erosion rates ~22-fold increase in predicted erosion rates* Source: Nuns Fire WERT Final Report Source: Atlas Fire WERT Final Report

11 Post-Fire Response Debris and Toxic Removal Toxic waste EPA Debris and soil testing - USACE Photo: John Burgess/The Press Democrat BMP Implementation Collaboration among FEMA, USACE, CalOES, RWQCBs, RCDs, and NGOs

12 Post-Fire Monitoring Network of new and existing sites North Coast RWQCB SF Bay RWQCB USGS CSQA SCWA & LBL Photo: SFEI RMP-funded sampling Photo: SFEI

13 Post-Fire Recovery Planning Rebuild North Bay Non-profit Includes local development and business leaders Goal is to form a publicprivate partnership for rebuilding, and developing plans to make the region more resilient to wildfires

14 Post-Fire Recovery Planning Sonoma County Watershed Collaborative Led by SCAOSD Includes state and local orgs Several Working Groups developing recommendations Photo: SFEI Reports to County Supervisors by early Dec. Photo: SFEI

15 Water Quality Monitoring

16 Decline in Water Quality after Wildfires Polycyclic Aromatic Hydrocarbons (PAHs) o 4 X higher from burn areas Metals o Copper, lead, zinc increase hundredfold Sediment, phosphorus and nitrate o 4 X higher

17 RWQCB 2 Stormwater Monitoring 1 baseline (post-fire; pre-storm) 3 storms post-fire General Nutrients Metals PAHs Alkalinity Ammonia Aluminum T,D Acenaphthene Hardness Nitrate Arsenic T,D Acenaphthylene Sulfate Total Nitrogen Cadmium T,D Anthracene Total Organic Carbon Orthophosphate Chromium T,D Benzo (a) anthracene Total Dissolved Solids Total Phosphorus Copper T,D Benzo (a) Pyrene Total Suspended Solids Iron D Benzo (b) flouranthene Dissolved Oxygen F Lead T,D Benzo (g,h,i,) Perylene ph F Manganese D Benzo (k) Fluoranthene Specific Conductance F Mercury T,D Chrysene Temperature F Nickel T,D Dibenzo (a,h) anthracene Turbidity F Selenium T,D Fluoranthene Zinc T,D Fluorene Ideno(1,2,3-C,D)Pyrene Naphthalene Phenanthrene Pyrene

18

19

20 So what other contaminants might be present?

21 SFEI will add on Non-Targeted Analyses (NTA) Non-targeted monitoring Targeted Monitoring Cu, Pb, Zn Non-targeted monitoring Non-targeted monitoring

22 Chemical Identification Spectral Library?? Ibuprofen Triclosan Myclobutanil Simazine

23 Chemical Identification Spectral Library? Ibuprofen Myclobutanil Triclosan Simazine High Confidence Match

24 Chemical Identification Spectral Library Ibuprofen? Myclobutanil Triclosan Simazine

25 Chemical Identification Spectral Library? Ibuprofen Myclobutanil Triclosan Simazine? Chemical Formulas? Chemical Structure Databases 3,3 - Dimethoxybenzidine? Piquizil? Erioglaucine? No Spectra Lower Confidence Match, Tentative Identifications

26 What might we see? PCBs PAHs Pesticides Flame retardants Perfluorinated compounds

27 What has been completed to date? Pre-fire (11/2): WB water quality parameters Post-fire storms (11/8 & 15) Water quality parameters (both storms) NTA (Nov. 15) 1 more event Santa Rosa watershed (11/15)

28 Napa River (2016) Higher contaminant abundance during low tide Least contaminated site Pesticides, pharmaceuticals, natural products

29 Funding Status Bay RMP has approved: Analysis of 1 storm for NTA -Napa and Sonoma ($36K) Santa Rosa watershed (Region 1) Seeking funding ~$30K

30 Response & Recovery Project Tracking

31 Response & Recovery Project Tracking r3mp.ecoatlas.org

32 Response & Recovery Project Tracking

33 Response & Recovery Project Tracking

34 Response & Recovery Project Tracking

35 Response & Recovery Project Tracking

36 Response & Recovery Project Tracking

37 Response & Recovery Project Tracking

38 Response & Recovery Project Tracking

39 Response & Recovery Project Tracking

40 Response & Recovery Project Tracking

41 Response & Recovery Project Tracking

42 Response & Recovery Project Tracking

43 Response & Recovery Project Tracking

44 Response & Recovery Project Tracking

45 Sediment Monitoring Elements

46 Sediment Monitoring Key Elements for Understanding Fire Impacts Hillslope monitoring Channel monitoring Sediment gaging

47 Sediment Monitoring Key Elements for Understanding Fire Impacts Hillslope monitoring Ground Surveys Channel monitoring Photo: John Moody/USGS Sediment gaging Photo: SFEI Photo: SFEI

48 Sediment Monitoring Key Elements for Understanding Fire Impacts Hillslope monitoring UAV (Drone) Surveys Channel monitoring Source: SFEI Sediment gaging Source: SFEI Photo: SFEI

49 Sediment Monitoring Key Elements for Understanding Fire Impacts Hillslope monitoring Channel monitoring Photo: USGS Sediment gaging

50 THANK YOU! Cristina Grosso Scott Dusterhoff Meg Sedlak

TECHNICAL MEMORANDUM June 16, 2011

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