Techniques for Successful Storm-Water Monitoring in a Mining Influenced Watershed

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1 Techniques for Successful Storm-Water Monitoring in a Mining Influenced Watershed Presented by Tom McComb, PG

2 TENNESSEE background Techniques for Successful Storm-Water Monitoring in a Mining Influenced Watershed 2

3 Techniques for Successful Storm-Water Monitoring in a Mining Influenced Watershed 3

4 Techniques for Successful Storm-Water Monitoring in a Mining Influenced Watershed 4

5 Techniques for Successful Storm-Water Monitoring in a Mining Influenced Watershed 5

6 Techniques for Successful Storm-Water Monitoring in a Mining Influenced Watershed 6

7 Techniques for Successful Storm-Water Monitoring in a Mining Influenced Watershed 7

8 2001 Techniques for Successful Storm-Water Monitoring in a Mining Influenced Watershed 8

9 2004 Techniques for Successful Storm-Water Monitoring in a Mining Influenced Watershed 9

10 1 Identification of sources of contaminants Benefits Identification of sources of contaminants Identification of first flush events Comparison of base-flow and storm-flow conditions Techniques for Successful Storm-Water Monitoring in a Mining Influenced Watershed 10

11 2 Identification of first flush events Benefits Identification of sources of contaminants Identification of first flush events Comparison of base-flow and storm-flow conditions Techniques for Successful Storm-Water Monitoring in a Mining Influenced Watershed 11

12 3 Comparison of base-flow and storm-flow conditions Benefits Identification of sources of contaminants Identification of first flush events Comparison of base-flow and storm-flow conditions Techniques for Successful Storm-Water Monitoring in a Mining Influenced Watershed 12

13 Source Identification Techniques for Successful Storm-Water Monitoring in a Mining Influenced Watershed 13

14 BENEFITS SOURCE IDENTIFICATION Base-Flow Dissolved Copper December 2012 through December Cu (ug/l) NP6-0 NP6-1 NP6-1A NP6-3 FM3 800 NP7-1 NP7-4 SW8B Dec-12 Mar-13 Jun-13 Sep-13 Dec-13 Techniques for Successful Storm-Water Monitoring in a Mining Influenced Watershed 14

15 First Flush Techniques for Successful Storm-Water Monitoring in a Mining Influenced Watershed 15

16 BENEFITS FIRST FLUSH Started Sampling Stopped Sampling 1 Hydrograph (ft) Rain (in/hr) /13/07 09/13/07 09/14/07 09/14/07 09/15/07 09/15/07 09/16/07 09/16/07 Date Station 2 Level Rain (inches/hour) Techniques for Successful Storm-Water Monitoring in a Mining Influenced Watershed 16

17 BENEFITS FIRST FLUSH Specific Conductance (us/cm) Hydrograph (ft) and ph /13/07 09/14/07 09/14/07 09/15/07 09/15/07 09/16/07 09/16/07 09/17/07 Date SpC (us/cm) ph Station 2 Hydrograph (ft) Techniques for Successful Storm-Water Monitoring in a Mining Influenced Watershed 17

18 Storm Flow vs. Base Flow Techniques for Successful Storm-Water Monitoring in a Mining Influenced Watershed 18

19 BENEFITS STORM FLOW VS. BASE FLOW 1000 Base-Flow Monitoring - Dissolved Copper (ug/l) 144 Concentration (ug/l) Chronic Copper- 4.0 ug/l 1 Feb-03 Aug-03 Feb-04 Aug-04 Feb-05 Aug-05 Feb-06 Aug-06 Feb-07 Aug-07 Feb-08 Date Techniques for Successful Storm-Water Monitoring in a Mining Influenced Watershed 19

20 BENEFITS STORM FLOW VS. BASE FLOW Storm Water Monitoring - Dissolved Copper (ug/l) C oncentration (ug/l) Acute Copper ug/l 1 Feb-03 Aug-03 Feb-04 Aug-04 Feb-05 Aug-05 Feb-06 Aug-06 Feb-07 Aug-07 Feb-08 Date Techniques for Successful Storm-Water Monitoring in a Mining Influenced Watershed 20

21 So when does this take place? Techniques for Successful Storm-Water Monitoring in a Mining Influenced Watershed 21

22 80 Annual Cumulative Rain (inches) Average Annual Precipitation ( ) Rain (inches) /1 2/1 3/1 4/1 5/1 6/1 7/1 Date 8/1 9/1 10/1 11/1 12/ Techniques for Successful Storm-Water Monitoring in a Mining Influenced Watershed 22

23 presence of metal salts When : dry season Techniques for Successful Storm-Water Monitoring in a Mining Influenced Watershed 23

24 Interstitial water flow When : wet season Techniques for Successful Storm-Water Monitoring in a Mining Influenced Watershed 24

25 Dry Season vs. Wet Season Dissolved Copper (ug/l) Hours Acute Copper ug/l Dry Season - Dis. Copper Wet Season - Dissolved Copper Techniques for Successful Storm-Water Monitoring in a Mining Influenced Watershed 25

26 Setup Techniques for Successful Storm-Water Monitoring in a Mining Influenced Watershed 26

27 Analytical Suites vs Available Sample Volumes Techniques for Successful Storm-Water Monitoring in a Mining Influenced Watershed 27

28 Area/Velocity Meter Autosampler Hydrolab Rain gauge/weather station Field computer and printer! Setup : Equipment Techniques for Successful Storm-Water Monitoring in a Mining Influenced Watershed 28

29 Set up equipment! two weeks prior to anticipated sampling event Techniques for Successful Storm-Water Monitoring in a Mining Influenced Watershed 29

30 Source areas Stream Channel Hydraulics Security Safety Location Considerations Source areas Stream Channel Hydraulics Security Safety Techniques for Successful Storm-Water Monitoring in a Mining Influenced Watershed 30

31 Techniques for Successful Storm-Water Monitoring in a Mining Influenced Watershed 31

32 Setup 1. Building/improving trails to the selected sample locations 2. Securing the area velocity probe onto the stream bed 3. Surveying the stream cross section 4. Installing the area velocity meter and autosampler above flood levels Techniques for Successful Storm-Water Monitoring in a Mining Influenced Watershed 32

33 Setup 5. Securing autosampler s suction line from the creek to the sampler 6. Installing flow-through pipes for the Hydrolabs 7. Calibrating the meters and samplers Techniques for Successful Storm-Water Monitoring in a Mining Influenced Watershed 33

34 Sample bottles Sampling forms Paper towels Silicon tubing Flashlights Water proof pens Filters Vehicles Computer Liquinox Zip-lock bags Printer Shipping forms Trash bags Printer ink Calibration fluids Di-water Computer label paper Coolers Batteries Chocolate Tape and tape guns Trail markers Snacks Setup : Supplies Techniques for Successful Storm-Water Monitoring in a Mining Influenced Watershed 34

35 Safety Techniques for Successful Storm-Water Monitoring in a Mining Influenced Watershed 35

36 Safety : Use experienced field crew use the buddy system cell phones + contact info reflective vests avoid flood waters daily safety meetings Techniques for Successful Storm-Water Monitoring in a Mining Influenced Watershed 36

37 Safety : Establish meeting points Techniques for Successful Storm-Water Monitoring in a Mining Influenced Watershed 37

38 Safety : Alert client, site workers, and security of schedule Techniques for Successful Storm-Water Monitoring in a Mining Influenced Watershed 38

39 Startup Techniques for Successful Storm-Water Monitoring in a Mining Influenced Watershed 39

40 Check weather forecasts! Rain events typically start on weekends and national holidays Techniques for Successful Storm-Water Monitoring in a Mining Influenced Watershed 40

41 Startup : Auto Samplers install charged batteries install ice set the clock program start time confirm sample tubing is clear and in the water Techniques for Successful Storm-Water Monitoring in a Mining Influenced Watershed 41

42 Startup : Area/Velocity Meter Install new batteries Confirm instrument is recording depth and velocity Techniques for Successful Storm-Water Monitoring in a Mining Influenced Watershed 42

43 Startup : Hydrolabs Install batteries Check calibration Check installation Techniques for Successful Storm-Water Monitoring in a Mining Influenced Watershed 43

44 Make field-crew assignments Techniques for Successful Storm-Water Monitoring in a Mining Influenced Watershed 44

45 Duration Water Level (ft) /14/07 11/14/07 11/14/07 11/15/07 11/15/07 11/15/07 11/15/07 11/15/07 11/16/07 11/16/07 11/16/07 11/16/07 Date Techniques for Successful Storm-Water Monitoring in a Mining Influenced Watershed 45

46 Autosampler Typical Runtime 12 hour intervals A.M. Schedule P.M. Schedule Techniques for Successful Storm-Water Monitoring in a Mining Influenced Watershed 46

47 Recommendations Sample labelling Sample filtering Bottle setup Shipping Decontamination Supplies of expendable materials Techniques for Successful Storm-Water Monitoring in a Mining Influenced Watershed 47

48 Lessons Learned Keep it simple Keep the sample intervals the same at all locations Notify the lab once the storm-water sampling event has started Techniques for Successful Storm-Water Monitoring in a Mining Influenced Watershed 48

49 Lessons Learned Have a set process (removing bottles from autosamplers, labelling, and filling out COC forms) Look out for other activities within watershed (treatment plant discharges, construction activities, beaver dam breaks) Techniques for Successful Storm-Water Monitoring in a Mining Influenced Watershed 49

Typical problems Inaccurate weather forecasts Dead batteries Hydrolabs washed up on bank or surfing Autosampler Problems o Incomplete restart o Accidental shut off o Ice jam on rotator arm

50 Typical problems Inaccurate weather forecasts Dead batteries Hydrolabs washed up on bank or surfing Autosampler Problems o Incomplete restart o Accidental shut off o Ice jam on rotator arm o Sample bottles floating in carrousel o Suction line out of water/frozen o Error in water detection unit Techniques for Successful Storm-Water Monitoring in a Mining Influenced Watershed 50

51 Techniques for Successful Storm-Water Monitoring in a Mining Influenced Watershed Presented by Tom McComb, PG

ACME DIAGNOSTICS STANDARD OPERATING PROCEDURE

ACME DIAGNOSTICS STANDARD OPERATING PROCEDURE Procedure Number: II.01.200a Effective Date: 09/14/99 Review and Update: 09/2003 TITLE: ADVIA 120 ROUTINE MAINTENANCE PURPOSE AND PRINCIPLE: The ADVIA 120