Addressing NH s salt pollution problem. Patrick Woodbrey Salt Reduction Coordinator NHDES

Transcription

1 Addressing NH s salt pollution problem Patrick Woodbrey Salt Reduction Coordinator NHDES

2 Identifying the Problem I93 widening 2

3 3 4 Chloride Impairments

4 Chloride TMDL TOTAL MAXIMUM DAILY LOAD % State Town Private 4 0 Current Load Target Load

5 Chloride Impairment is a Statewide Issue 2012 = 46 Impairments 5

6 NHDOT Salt Reduction Efforts 6

7 NHDOT Salt Reduction Efforts 7

8 NHDOT Salt Reduction Efforts 8

9 9 DOT Efforts

10 DOT Salt Reduction Achieved Preliminary Data 10

11 Municipal Efforts 11 Update Equipment

12 Municipal Efforts 12 Staff Training

13 Salem Salt Reduction Preliminary Data 13

14 Windham Salt Reduction Preliminary Data 14

15 Source Characterization Policy Brook, Salem Water Softener 2% Salt Piles 7% Food Waste 1% State Roads 9% Atmospheric Deposition 1% Parking Lots 50% Municipal Roads 27% 15 Private Roads 3%

16 Green SnowPro Training Est

17 17 Private Sector Salt Use

18 18

19 19

20 A Snowball s Chance 2010 Mandatory Certification w/ fee HB 1676 Referred to Interim Study 2011 Mandatory Certification w/ fee HB 202 Inexpedient to Legislate (killed) 2012 Optional Certification w/ fee SB 392 Passed Senate Killed in the House 2013 Optional Certification w/ fee HB 523 Retained in committee. Passed as part of the budget bill, HB 2 20

21 Liability Protection Salt applicators, and those who hire them, are not liable for damages due to hazards, EVEN WITH ACTUAL NOTICE THEREOF, when such hazards are caused solely by snow or ice Walking on snow and ice is inherently dangerous 21

22 Gaining Liability Protection 1. Train 2. Certify 22

23 Course Overview Salt Impacts Environmental Infrastructure 23

24 Course Overview Salt Impacts 24

25 Course Overview Health Impacts Well water contamination and Hypertension 25

26 Course Overview Pre-Season Preparation, Site Inspection & Expectations 26

27 27 Course Overview Site Operations

28 28 Course Overview Pre-Treatment: Before the Storm

29 29 Course Overview Spreader Calibration

30 Results of Field Calibration Gate Opening W Spread Width (ft.) A Discharge Rate (lb/min.) B D 5.28 W Run 1 Run 2 Run x 12 = x 11.4 = Average Discharge Rate ((Run1 + Run2 + Run3)/3) ( )/3 = ( )/ 3 = Pounds of Material Discharged per 1000 square ft. (D = B C A) 5 mph (C = 12) / = /6 0 = mph (C = 6) / = /6 0 = mph (C = 4) / = /6 0 = mph (C = 3) / = /6 0 = mph (C = 2.4) / = /6 0 = mph (C = 2) / = /6 0 =

31 Course Overview Use Pavement Temperature Truck Mounted Thermometer Cab Display 31

32 Melting Capacities of Salt Pavement Temp (ºF) 1 lb. salt will melts this amount of ice Time it takes to melt this amount of ice lbs. 5 mins lbs. 10 mins lbs. 20 mins lbs. 60 mins lbs. ineffective lbs lbs. 32

33 Parking Lot Application Rates Pavement Temp. ( F) and Trend ( ) Weather Condition Maintenance Actions Salt Prewetted/Pretr eated with salt brine Application Rate (lbs/per 1000 sq.ft.) Salt Prewetted/Pretr eated with other blends Dry salt Winter sand > Snow Plow, treat intersections only Frz. Rain Apply chemical Snow Plow and apply chemical Frz. Rain Apply chemical Snow Plow and apply chemical Frz. Rain Apply chemical Not recommended Not recommended Not recommended Not recommended Not recommended Not recommended Snow Plow and apply chemical Not recommended Frz. Rain Apply chemical

34 34 Exam Review

35 THE EXAM 5% Fail Rate 35

36 Certificates Since 2013

37 Certification Options Individual Certificate 9% Master Certificate 35% Subordinate Certificate 56% 37

38 Re-Certification Requirements By June 1 every year submit a Salt Use Report By June 15 every year submit a renewal application Master Certificate holders must list the names of all employees and contractors under their supervision. Complete a refresher training course every two years after initial certification. 38

39 39 Private Sector Reductions?

40 Private Sector Salt Use Reporting 2014 application rate : 12.2 tons/acre 2015 application rate : 12 tons/acre 40

41 Certified Green SnowPros Nationally Recognized 41

42 2015 NH Salt Symposium Partnership Forged NH Department of Environmental Services UNH Technology Transfer Center SIMA Snow and Ice Management Association NH Snow Management Contractors 42

43 NH Salt Symposium

44 On the Web search ROAD SALT REDUCTION NH Certified Green SnowPro 44

45 QUESTIONS? Contacts Patrick Woodbrey Steve Landry