Page 1
Large-Scale Slope Erosion Testing
(ASTM D 6459)
of
US Erosion Control Products’
US-2P10,
Double Net Poly Fiber Matting
over
Loam
September 2016
Submitted to:
AASHTO/NTPEP
444 North Capitol Street, NW, Suite 249
Washington, D.C. 20001
Attn: Katheryn Malusky, NTPEP
[email protected]
Submitted by:
TRI/Environmental, Inc.
9063 Bee Caves Road
Austin, TX 78733
C. Joel Sprague
Project Manager
Page 2
October 24, 2016
Ms. Katheryn Malusky AASHTO/NTPEP
444 North Capitol Street, NW, Suite 249
Washington, D.C. 20001
E-mail: [email protected]
Subject: Large-Scale Slope (ASTM D6459)
US Erosion Control Products, Willacoochee, GA
US-2P10, Double Net Poly Fiber Matting
Dear Ms. Malusky:
This letter report presents the results for large-scale slope erosion tests performed on US-2P10,
Double Net Poly Fiber Matting, rolled erosion control product (RECP), over loam. Included are data
developed for target rainfall intensities from 2 to 6 in/hr (5 to 15 cm/hr). All testing work was
performed in general accordance with the ASTM D 6459, Standard Test Method for Determination
of Rolled Erosion Control Product (RECP) Performance in Protecting Hillslopes from Rainfall-
Induced Erosion. Generated results were used to develop the following general cover factor (C-
Factor) for the tested material:
C-Factor US-2P10 & 1.7 staples/sy = 0.009 for cumulative R-Factor ≤ 162;
Eqn: C = -0.00000001R3 + 0.00000415R
2 - 0.00050126R + 0.02868463
TRI is pleased to present this final report. Please feel free to call if we can answer any questions or
provide any additional information.
Sincerely,
C. Joel Sprague, P.E.
Senior Engineer
Geosynthetics Services Division
Cc: Jay Sprague - TRI
Page 3
US-2P10, Double Net Poly Fiber Matting, over Loam
Slope Erosion Testing for NTPEP
October 24, 2016
2
SLOPE TESTING REPORT
US-2P10, Double Net Poly Fiber Matting, over Loam
TESTING EQUIPMENT AND PROCEDURES
Overview of Test and Apparatus
TRI/Environmental, Inc.'s (TRI's) large-scale slope erosion testing facility is located at the Denver
Downs Research Farm in Anderson, SC. Testing oversight is provided by C. Joel Sprague, P.E. The
large-scale testing reported herein was performed in accordance with ASTM D 6459, on 3:1 slopes
using loamy soil test plots measuring 40 ft long x 8 ft wide. The simulated rainfall was produced by
ten “rain trees” arranged around the perimeter of each test slope. Each rain tree has four sprinkler
heads atop a 15 ft riser pipe. The rainfall system has been calibrated prior to testing to determine the
number of sprinkler heads and associated pressure settings necessary to achieve target rainfall
intensities and drop sizes. The target rainfall intensities are 2, 4, and 6 in/hr and are applied in
sequence for 20 minutes each. Three replicate test slopes covered by the same rolled erosion control
product (RECP) submitted were tested. The erosion resistance provided by the product tested is
obtained by comparing the protected slope results to control (bare soil) results. Tables and graphs of
rainfall versus soil loss are generated from the accumulated data.
Rolled Erosion Control Product (RECP)
The following information and index properties were determined from the supplied products.
Table 1. Tested Product Information & Index Properties
Product Information and Index Property / Test Units Sampled Product
Product Identification - US-2P10
Manufacturer - US Erosion Control
Products
Manufacturing Plant Location - Willacoochee, GA
Lot number of sample - -
Fiber - 100% Polypropylene
Netting Openings in 0.75 x 0.75 (approx)
Stitching Spacing in 1.5 (approx)
Tensile Strength MD x XD (ASTM D 6818)* lb/in 41.2 x 20.2
Tensile Elongation MD x XD (ASTM D 6818)* % 23.6 x 20.9
Thickness (ASTM D 6525)* mils 225
Light Penetration (ASTM D 6567)* % cover 83.4
Density – Net Only (ASTM D 792, Method A)* g/cm3 0.911
Mass / Unit Area (ASTM D 6475)* oz/sy 13.41 * Values from Independent Testing of Randomly Sampled Product
Page 4
US-2P10, Double Net Poly Fiber Matting, over Loam
Slope Erosion Testing for NTPEP
October 24, 2016
3
Test Soil
The test soil used in the test plots had the following characteristics.
Table 2. TRI-Loam Characteristics
Soil Characteristic Test Method Value
% Gravel
ASTM D 422
1
% Sand 63
% Silt 21
% Clay 15
Liquid Limit, % ASTM D 4318
30
Plasticity Index, % 8
Soil Classification USDA Sandy Loam
Soil Classification USCS Sandy clay (SC)
K-Factor D6459 0.133
Preparation of the Test Slopes
The initial slope soil veneer (12-inch thick minimum) is placed and compacted. Compaction is
verified to be 90% (± 3%) of Proctor Standard density using ASTM D 2937 (drive-cylinder method).
Subsequently, the test slopes undergo a “standard” preparation procedure prior to each slope test.
First, any rills or depressions resulting from previous testing are filled in with test soil and subject to
heavy compaction. The entire test plot is then tilled to a depth not less than four inches. The test
slope is then raked to create a slope that is smooth both side-to-side and top-to-bottom. Finally, a
steel drum roller is rolled down-and-up the slope 3 times proceeding from one side of the plot to the
other. The submitted erosion control product is then installed as directed by the client.
Installation of Erosion Control Product on Test Slopes
As noted, the submitted erosion control product was installed as directed by the client. For the tests
reported herein, the RECP was anchored with 6-inch staples at 1.7 staples per square yard.
Specific Test Procedure
Immediately prior to testing, rain gauges are placed at the quarter points (i.e. 10, 20, 30 ft) on the
slope. The slope is then exposed to sequential 20-minute rainfalls having target intensities of 2, 4,
and 6 inches per hour. All runoff is collected during the testing. Additionally, periodic sediment
concentration grab samples are taken and runoff rate measurements are made. Between rainfall
intensities, the rainfall is stopped and rainfall depth is read in the three rain gauges, valves are
adjusted to facilitate the subsequent rainfall intensity, and empty collection vessels are positioned to
collect subsequent runoff.
After allowing for sediments to settle, water is decanted from the collected runoff. The remaining
solids are used to determine “bulk” soil loss. Bulk soil loss is measured by drying all collected
sediments.
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US-2P10, Double Net Poly Fiber Matting, over Loam
Slope Erosion Testing for NTPEP
October 24, 2016
4
Figure 1. Rainfall Testing Facility
(set up for a control run)
Figure 2. Typical Sampling
Figure 3. Typical Control Result
Pictures of slopes prepared for testing are shown in Figure 4.
Figure 4. Typical Prepared Soil Slope & RECP Installation
Pictures of the eroded slopes are shown in Figures 5 thru 7.
Page 6
US-2P10, Double Net Poly Fiber Matting, over Loam
Slope Erosion Testing for NTPEP
October 24, 2016
5
Figure 5a. Test Slope #1 –
Start of the 2 in/hr Event
Figure 5b. Test Slope #1 –
End of the 4 in/hr Event
Figure 5c. Test Slope #1 –
End of 6 in/hr Even
Figure 5d. Test Slope #1 –
RECP Removed
Figure 6a. Test Slope #2 –
Start of the 2 in/hr Event
Figure 6b. Test Slope #2 –
End of the 4 in/hr Event
Page 7
US-2P10, Double Net Poly Fiber Matting, over Loam
Slope Erosion Testing for NTPEP
October 24, 2016
6
Figure 6c. Test Slope #2 –
End of 6 in/hr Event
Figure 6d. Test Slope #2 –
RECP Removed
Figure 7a. Test Slope #3 –
Start of 2 in/hr Event
Figure 7b. Test Slope #3 –
End of the 4 in/hr Event
Figure 7c. Test Slope #3 –
End of 6 in/hr Event
Figure 7d. Test Slope #3 –
RECP Removed
Page 8
US-2P10, Double Net Poly Fiber Matting, over Loam
Slope Erosion Testing for NTPEP
October 24, 2016
7
TEST RESULTS
The Cover Management (C) Factor from the Revised Universal Soil Loss Equation (RUSLE) of the
USDA-ARS Agricultural handbook 703 is the reported performance measure for slopes determined
from this testing. The C-Factor and R-Factor reported herein are related through RUSLE by the
following relationship:
A = R x K x LS x C x P
where: A = the computed soil loss in tons per acre (measured/calculated from test);
R = the rainfall erosion index (measured/calculated from test);
K = the erodibility of the soil (calculated from test – see Figure 9);
LS = the topographic factor (2.78 for 8 x 40 ft slope);
C = the cover factor = ratio of protect soil loss to control soil loss (1.0 for control); and
P = the practice factor (1.0 for all test slopes).
Total soil loss and the associated rainfall depth measured during the testing are the principle data
used to determine the C Factor. The cumulative C-Factors shown in Table 3 are the ratio of the soil
loss from the protected condition at a calculated cumulative R-Factor divided by the cumulative soil
loss from the control plot (Figure 9) at that same R-Factor.
In all cases, the soil loss and associated rainfall data for both protected and control conditions are
used to develop a normalized cumulative graph of R-Factor versus C-Factor (R factor = total kinetic
energy of the storm (E) times its maximum 30-minute Intensity (I)). The maximum average
normalized cumulative R-Factor calculated for the target test events: 2 in/hr for 20 minutes + 4 in/hr
for 20 minutes + 6 in/hr for 20 minutes, is R = 231 assuming all raindrops achieve terminal velocity.
Since this is not the case, the R-Factor must be “scaled” to reflect the kinetic energy associated with
the actual velocity achieved by each size of raindrop. For the tests reported herein, the C-Factor
associated with this scaled R-Factor of 162 is the reported performance value. This facilitates
product-to-product comparison of test results at a common point of the storm event.
Graphs of R-Factor versus C-Factor for the protected condition and Soil Loss versus R-Factor for the
control condition are shown in Figures 8 and 9, respectively. Figure 8 includes the best regression
line fit to the test data to facilitate the determination of the C-factor. Figure 8 additionally allows
users of this report to evaluate performance at other points in the model storm by selecting the R
factor (and the corresponding C Factor) that may fit local conditions.
According to the test procedure ASTM D6459, a test may be stopped in the event of catastrophic soil
loss, as determined by the lab. AASHTO NTPEP ECP Panel has determined this practice places an
undue amount of subjectivity into the test. In lieu of stopping the test, the test is run to completion.
The runoff and sediment loss just prior to catastrophic failure is separated from that occurring after.
This additional point is used in the creating of the Soil Loss verses R Factor Graph.
The tests reported herein did not experience catastrophic slope failure. Linear (R2=0.74), power
(R2= 0.94), and polynomial (R
2 = 0.97) fits were the best fits evaluated.
The overall C-Factor information shown in Table 4 is derived from Figure 8 which relates the C-
Factors and associated R-Factors given in Table 3.
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US-2P10, Double Net Poly Fiber Matting, over Loam
Slope Erosion Testing for NTPEP
October 24, 2016
8
Table 3. Summary Data Table – Protected Slopes
Slope # &
Product
Test #
(run # -
target
intensity)
Intensity
(in/hr)
Runoff
(gallons)
Cumm.
R-Factor
Soil Loss
(lbs/plot/event)
Cumm. Soil
Loss
(Tons/Acre)
Control Soil
Loss at
Cumm. R-
Factor
(Tons/Acre)
Cumm.
C-Factor
1 – US-2P10
1-2 1.97 33.32 6.20 0.900 0.061 2.288 0.0268 1-4 4.02 165.36 50.03 2.284 0.217 18.472 0.0117
1-6 6.14 261.25 167.39 1.906 0.347 61.802 0.0056
2 – US-2P10
2-2 2.01 32.89 6.47 0.798 0.054 2.388 0.0228
2-4 4.06 171.79 51.34 2.762 0.243 18.955 0.0128
2-6 6.18 285.25 170.33 4.166 0.526 62.884 0.0084
3 – US-2P10
3-2 2.05 27.82 6.74 0.998 0.068 2.490 0.0273 3-4 3.98 169.64 50.42 2.510 0.239 18.614 0.0128
3-6 5.94 285.25 160.87 3.830 0.500 59.394 0.0084
Table 4. Overall C-Factor
Product C-Factor Calculation
US-2P10, Double Net Poly Fiber
Matting & 1.7 staples/sy 0.009
C = -0.00000001R3 + 0.00000415R
2 -
0.00050126R + 0.02868463
y = -0.00000001x3 + 0.00000415x2 - 0.00050126x + 0.02868463R² = 0.96606660
0.000
0.010
0.020
0.030
0.040
0 20 40 60 80 100 120 140 160 180 200
C-F
ac
tor
R-Factor
C-Factor vs. R-Factor(US-2P10 @ 1.7 staples/sy on TRI-Loam; 3:1 Slope)
All Slopes - NORMALIZED Poly. (All Slopes - NORMALIZED)
C = = -0.00000001R3 + 0.00000415R2 - 0.00050126R + 0.02868463C-Factor = 0.009 for R-Factor = 162
The cummulative R-Factor calculated for the following events: 2 in/hr for 20 min + 4 in/hr for 20 min + 6 in/hr for 20 min, is R = 162 and the associated C-Factor is determined from the best-fit regression eqn.
Figure 8. R-Factor vs. C-Factor – Tested Product
Page 10
US-2P10, Double Net Poly Fiber Matting, over Loam
Slope Erosion Testing for NTPEP
October 24, 2016
9
y = 0.3692xR² = 0.8927
0.00
10.00
20.00
30.00
40.00
50.00
60.00
70.00
80.00
90.00
100.00
0 20 40 60 80 100 120 140 160 180 200
So
il L
os
s (
T/A
)
RUSLE R (US Customary Units)
Soil Loss vs RUSLE R (Control Testing of TRI-Loam; 3:1 Slope; 2016: 3 tests)
8.16.16-1 8.16.16-2 8.16.16-3 all Linear (all)
From RUSLE:A = R K LS C P
For Control: LS = 2.78; P = 1.0; C = 1.0
K = (A/R) / 2.78 = m / 2.78K = 0.3692 / 2.78 = 0.133
Scaled Because Terminal Velocity Not Achieved:
The cummulative R-Factor calculated for the
following events: 2 in/hr for 20 min + 4 in/hr for 20 min +
6 in/hr for 20 min, is R = 162 and the associated soil
loss is 60.0 tons/acre
Figure 9. R-Factor vs. Soil Loss – Control Tests
Page 11
US-2P10, Double Net Poly Fiber Matting, over Loam
Slope Erosion Testing for NTPEP
October 24, 2016
Appendix
APPENDIX A – RECORDED DATA
Test Record Sheets
Sediment Concentration Data
Runoff Data
Soil Moisture Content
Soil Loss Tables
Page 12
US-2P10, Double Net Poly Fiber Matting, over Loam
Slope Erosion Testing for NTPEP
October 24, 2016
# Time Sample Taken
Start Rain: 9:19 AM 1 3:00 XSampling
interval: 0:03 2 6:00 X
Rain Time (min): 20.00 Test Time (min): 22.00 3 9:00 X
Descr:. US Erosion - NTPEP 4 12:00 X
Anchors: 6" Anchorage: 1.7/Sq. Yd. 5 15:00 X
6 18:00 X
wc1 = 15.5% Set valves to 16 psi. 7
d = 17 mm 8
i = 2.01 in/hr P = 10 psi 9
10
x 11
X P = 10 psi B 12
x x 13
x C P = 10 psi X 14
x x 15
x P = 10 psi D x 12
X x 13
x E P = 10 psi x 14
x X 15
X P = 10 psi F x
x x
x G P = 10 psi x # Time
Time to Collect 1
Gallon, Seconds
x X 1 3 360
x P = 10 psi H x 2 9 25
X x 3 12 19
x I P = 10 psi x 4 15 17
x X 5 18 16
x P = 10 psi J x 6
X 7
X 8
d = 16 mm 9
i = 1.89 in/hr Temp. 64 deg 10
wc2 = 15.5% Hum. 76 % 11
d = 17 mm 12
i = 2.01 in/hr Average Depth: mm 13
wc3 = 13.0% Avg Rainfall Intensity: in/hr 14
15
12
13
14
15
Sediment Concentration Grab
Samples Followed by Runoff Rate
Measurements
Runoff Rate Measurements
TOP OF SLOPE
End Rain: 9:39 AM
(circle "x" for open valves)
End Runoff:
US-2P10
A
DDRF Rainfall Testing
9:41 AM
x x X x
Lot #:
Date:
Product:
14-Oct-16
0001316
Notes:
0 mph breeze.
Approx 45 gal collected.
17
1.97
Slope #: 1 Target Rain: 2 in/hr
Page 13
US-2P10, Double Net Poly Fiber Matting, over Loam
Slope Erosion Testing for NTPEP
October 24, 2016
# Time Sample Taken
Start Rain: 9:45 AM 1 0:00 XSampling
interval: 0:02 2 0:00 X
Rain Time (min): 20.00 Test Time (min): 22.00 3 0:00 X
Descr:. US Erosion - NTPEP 4 0:00 X
Anchors: 6" Anchorage: 1.7/Sq. Yd. 5 0:00 X
Set valves to 16 psi. 6 0:00 X
wc1 = 15.5% 7 0:00 X
d = 34 mm P = 10 psi 8 0:00 X
i = 4.02 in/hr 9 0:00 X
X 10 0:00 X
X P = 10 psi B 11
x X 12
x C P = 10 psi X 13
x x 14
x P = 10 psi D x 15
X x 12
X E P = 10 psi x 13
X X 14
X P = 10 psi F X 15
x x
x G P = 10 psi x
x X # Time
Time to Collect 1
Gallon, Seconds
x P = 10 psi H X 1 2 8
X x 2 4 8
X I P = 10 psi x 3 6 8
x X 4 8 8
X P = 10 psi J X 5 10 8
X 6 12 8
X 7 14 8
d = 34 mm 8 16 7
i = 4.02 in/hr 9 18 7
wc2 = 15.5% Temp. 64 deg 10 20 7
d = 34 mm Hum. 80 % 11
i = 4.02 in/hr 12
wc3 = 13.0% Average Depth: mm 13
Avg Rainfall Intensity: in/hr 14
15
12
13
14
15
Runoff Rate Measurements
x x X x
A
10:07 AM
DDRF Rainfall Testing
14-Oct-16
Lot #:
Product: US-2P10
End Runoff:
TOP OF SLOPE
0001316
Sediment Concentration Grab
Samples Followed by Runoff Rate
Measurements
Date:
Slope #: 1 Target Rain: 4 in/hr
End Rain: 10:05 AM
Notes:
0 mph breeze.
Approx 165 gal collected.
34
4.02
Page 14
US-2P10, Double Net Poly Fiber Matting, over Loam
Slope Erosion Testing for NTPEP
October 24, 2016
# Time Specimen Taken
Start Rain: 10:10 AM 1 0:00 XSampling
interval: 0:02 2 0:00 X
Rain Time (min): 20.00 Test Time (min): 22.00 3 0:00 X
Descr:. US Erosion - NTPEP 4 0:00 X
Anchors: 6" Anchorage: 1.7/Sq. Yd. 5 0:00 X
Set valves to 16 psi. 6 0:00 X
wc1 = 15.5% 7 0:00 X
d = 50 mm 8 0:00 X
i = 5.91 in/hr P = 10 psi 9 0:00 X
10 0:00 X
X 11
X P = 10 psi B 12
X X 13
x C P = 10 psi X 14
x X 15
X P = 10 psi D x 12
X X 13
X E P = 10 psi X 14
X X 15
X P = 10 psi F x
X x
x G P = 10 psi X # Time
Time to Collect 1
Gallon, Seconds
x X 1 2 5
X P = 10 psi H X 2 4 5
X X 3 6 5
X I P = 10 psi X 4 8 5
X X 5 10 5
X P = 10 psi J X 6 12 5
X 7 14 5
X 8 16 5
d = 52 mm 9 18 5
i = 6.14 in/hr Temp. 65 deg 10 20 4
wc2 = 15.5% Hum. 84 % 11
d = 54 mm 12
i = 6.38 in/hr Average Depth: mm 13
wc3 = 13.0% Avg Rainfall Intensity: in/hr 14
15
12
13
14
15
Notes:
0 mph breeze.
Approx 260 gal collected.
52
6.14
Runoff Rate Measurements
TOP OF SLOPE
End Rain: 10:30 AM
A
x x X x
(circle "x" for open valves)
10:32 AM
Sediment Concentration Grab Samples
Followed by Runoff Rate
Measurements
DDRF Rainfall Testing
Date: 14-Oct-16
Slope #: 1 Target Rain: 6 in/hr
Lot #:
End Runoff:
Product: US-2P10
0001316
Page 15
US-2P10, Double Net Poly Fiber Matting, over Loam
Slope Erosion Testing for NTPEP
October 24, 2016
# Time Sample Taken
Start Rain: 10:34 AM 1 3:00 XSampling
interval: 0:03 2 6:00 X
Rain Time (min): 20.00 Test Time (min): 22.00 3 9:00 X
Descr:. US Erosion - NTPEP 4 12:00 X
Anchors: 6" Anchorage: 1.7/Sq. Yd. 5 15:00 X
Set valves to 16 psi. 6 18:00 X
wc1 = 10.2% 7
d = 17 mm 8
i = 2.01 in/hr P = 10 psi 9
10
x 11
B P = 10 psi X 12
x x 13
X P = 10 psi C x 14
x x 15
x D P = 10 psi x 12
x X 13
x P = 10 psi E x 14
X x 15
x F P = 10 psi X
x x
x P = 10 psi G x # Time
Time to Collect 1
Gallon, Seconds
X x 1 3 360
x H P = 10 psi x 2 9 33
x X 3 12 19
x P = 10 psi I x 4 15 17
X x 5 18 16
x J P = 10 psi x 6
X 7
X 8
d = 17 mm 9
i = 2.01 in/hr Temp. 68 deg 10
wc3 = 13.6% Hum. 81 % 11
d = 17 mm 12
i = 2.01 in/hr Average Depth: mm 13
wc2 = 13.9% Avg Rainfall Intensity: in/hr 14
15
12
13
14
15
10:56 AM
Target Rain: 2 in/hr
Date:
Product:
14-Oct-16
Lot #:
End Runoff:
Notes:
0 mph breeze.
Approx 45 gal collected.
17
2.01
US-2P10
x x X x
0001317
Sediment Concentration Grab
Samples Followed by Runoff Rate
Measurements
Runoff Rate Measurements
TOP OF SLOPE
End Rain: 10:54 AM
Slope #: 2
A
DDRF Rainfall Testing
(circle "x" for open valves)
Page 16
US-2P10, Double Net Poly Fiber Matting, over Loam
Slope Erosion Testing for NTPEP
October 24, 2016
# Time Sample Taken
Start Rain: 10:58 AM 1 0:00 XSampling
interval: 0:02 2 0:00 X
Rain Time (min): 20.00 Test Time (min): 22.00 3 0:00 X
Descr:. US Erosion - NTPEP 4 0:00 X
Anchors: 6" Anchorage: 1.7/Sq. Yd. 5 0:00 X
Set valves to 16 psi. 6 0:00 X
wc1 = 10.2% 7 0:00 X
d = 35 mm 8 0:00 X
i = 4.13 in/hr P = 10 psi 9 0:00 X
10 0:00 X
X 11
B P = 10 psi X 12
X x 13
X P = 10 psi C x 14
x x 15
x D P = 10 psi x 12
x X 13
x P = 10 psi E X 14
X X 15
X F P = 10 psi X
x x
x P = 10 psi G x # Time
Time to Collect 1
Gallon, Seconds
X x 1 2 8
X H P = 10 psi x 2 6 8
x X 3 8 8
x P = 10 psi I X 4 10 7
X x 5 12 7
X J P = 10 psi X 6 14 7
X 7 16 7
X 8 18 7
d = 34 mm 9 20 7
i = 4.02 in/hr Temp. 69 deg 10
wc3 = 13.6% Hum. 83 % 11
d = 34 mm 12
i = 4.02 in/hr Average Depth: mm 13
wc2 = 13.9% Avg Rainfall Intensity: in/hr 14
15
12
13
14
15
x x X x
A
Runoff Rate Measurements
TOP OF SLOPE
End Rain: 11:18 AM
End Runoff: 11:20 AM
(circle "x" for open valves)
DDRF Rainfall Testing Sediment Concentration Grab
Samples Followed by Runoff Rate
Measurements
Date:
Slope #: 2 Target Rain: 4 in/hr
14-Oct-16
Lot #:
Product: US-2P10
0001317
Notes:
0 mph breeze.
Approx 170 gal collected.
34
4.06
Page 17
US-2P10, Double Net Poly Fiber Matting, over Loam
Slope Erosion Testing for NTPEP
October 24, 2016
# Time Sample Taken
Start Rain: 11:23 AM 1 0:00 XSampling
interval: 0:02 2 0:00 X
Rain Time (min): 20.00 Test Time (min): 22.00 3 0:00 X
Descr:. US Erosion - NTPEP 4 0:00 X
Anchors: 6" Anchorage: 1.7/Sq. Yd. 5 0:00 X
Set valves to 16 psi. 6 0:00 X
wc1 = 10.2% 7 0:00 X
d = 51 mm 8 0:00 X
i = 6.02 in/hr P = 10 psi 9 0:00 X
10 0:00 X
X 11
B P = 10 psi X 12
X X 13
X P = 10 psi C x 14
X x 15
x D P = 10 psi X 12
x X 13
X P = 10 psi E X 14
X X 15
X F P = 10 psi X
x X
X P = 10 psi G x # Time
Time to Collect 1
Gallon, Seconds
X x 1 2 5
X H P = 10 psi X 2 4 5
x X 3 6 5
X P = 10 psi I X 4 8 5
X X 5 10 5
X J P = 10 psi X 6 12 4
X 7 14 4
X 8 16 4
d = 52 mm 9 18 4
i = 6.14 in/hr Temp. 69 deg 10 20 4
wc3 = 13.6% Hum. 84 % 11
d = 54 mm 12
i = 6.38 in/hr Average Depth: mm 13
wc2 = 13.9% Avg Rainfall Intensity: in/hr 14
15
12
13
14
15
Sediment Concentration Grab
Samples Followed by Runoff Rate
Measurements
Runoff Rate Measurements
TOP OF SLOPE
End Rain: 11:43 AM
DDRF Rainfall Testing
Date:
Product:
Lot #: 0001317
Notes:
0 mph breeze.
Approx 285 gal collected.
52
6.18
x x X x
Slope #: 2 Target Rain: 6 in/hr
End Runoff: 11:45 AM
14-Oct-16
US-2P10
(circle "x" for open valves)
A
Page 18
US-2P10, Double Net Poly Fiber Matting, over Loam
Slope Erosion Testing for NTPEP
October 24, 2016
# Time Sample Taken
Start Rain: 11:47 AM 1 3:00 X
Sampling
interval: 0:03 2 6:00 X
Rain Time (min): 20.00 Test Time (min): 22.00 3 9:00 X
Descr:. US Erosion - NTPEP 4 12:00 X
Anchors: 6" Anchorage: 1.7/Sq. Yd. 5 15:00 X
Set valves to 16 psi. 6 18:00 X
wc1 = 11.5% 7
d = 18 mm 8
i = 2.13 in/hr P = 10 psi 9
10
x 11
B P = 10 psi X 12
x x 13
X P = 10 psi C x 14
x x 15
x D P = 10 psi x 12
x X 13
x P = 10 psi E x 14
X x 15
x F P = 10 psi X
x x
x P = 10 psi G x # Time
Time to Collect 1
Gallon, Seconds
X x 1 3 410
x H P = 10 psi x 2 12 23
x X 3 15 19
x P = 10 psi I x 4 18 17
X x 5
x J P = 10 psi x 6
X 7
X 8
d = 17 mm 9
i = 2.01 in/hr Temp. 74 deg 10
wc3 = 12.1% Hum. 86 % 11
d = 17 mm 12
i = 2.01 in/hr Average Depth: mm 13
wc2 = 15.4% Avg Rainfall Intensity: in/hr 14
15
12
13
14
15
Notes:
0 mph breeze.
Approx 30 gal collected.
0001318
Runoff Rate Measurements
2.05
US-2P10
Lot #:
TOP OF SLOPE
Product:
Sediment Concentration Grab
Samples Followed by Runoff Rate
Measurements
End Rain:
DDRF Rainfall Testing
Slope #: 3
Date: 12:07 PM
Target Rain: 2 in/hr
14-Oct-16
End Runoff: 12:09 PM
17
(circle "x" for open valves)
A
x X x x
Page 19
US-2P10, Double Net Poly Fiber Matting, over Loam
Slope Erosion Testing for NTPEP
October 24, 2016
# Time Sample Taken
Start Rain: 12:11 PM 1 0:00 XSampling
interval: 0:02 2 0:00 X
Rain Time (min): 20.00 Test Time (min): 21.00 3 0:00 X
Descr:. US Erosion - NTPEP 4 0:00 X
Anchors: 6" Anchorage: 1.7/Sq. Yd. 5 0:00 X
Set valves to 16 psi. 6 0:00 X
wc1 = 11.5% 7 0:00 X
d = 34 mm 8 0:00 X
i = 4.02 in/hr P = 10 psi 9 0:00 X
10 0:00 X
X 11
B P = 10 psi X 12
X x 13
X P = 10 psi C x 14
x x 15
x D P = 10 psi x 12
x X 13
x P = 10 psi E X 14
X X 15
X F P = 10 psi X
x x
x P = 10 psi G x # Time
Time to Collect 1
Gallon, Seconds
X x 1 2 8
X H P = 10 psi x 2 4 8
x X 3 6 8
x P = 10 psi I X 4 8 7
X x 5 10 7
X J P = 10 psi X 6 12 7
X 7 14 7
X 8 16 7
d = 33 mm 9 18 7
i = 3.90 in/hr Temp. 76 deg 10 20 7
wc3 = 12.1% Hum. 87 % 11
d = 34 mm 12
i = 4.02 in/hr Average Depth: mm 13
wc2 = 15.4% Avg Rainfall Intensity: in/hr 14
15
12
13
14
15
Notes:
0 mph breeze.
Approx 170 gal collected.
Runoff Rate Measurements
12:31 PM
34
3.98
Date:
Sediment Concentration Grab
Samples Followed by Runoff Rate
Measurements
End Runoff: 12:32 PM
(circle "x" for open valves)
Slope #: 3 Target Rain: 4 in/hr
TOP OF SLOPE
Product:
Lot #:
DDRF Rainfall Testing
14-Oct-16 End Rain:
US-2P10
x X x x
A
0001318
Page 20
US-2P10, Double Net Poly Fiber Matting, over Loam
Slope Erosion Testing for NTPEP
October 24, 2016
# Time Sample Taken
Start Rain: 12:37 PM 1 0:00 XSampling
interval: 0:02 2 0:00 X
Rain Time (min): 20.00 Test Time (min): 22.00 3 0:00 X
Descr:. US Erosion - NTPEP 4 0:00 X
Anchors: 6" Anchorage: 1.7/Sq. Yd. 5 0:00 X
Set valves to 16 psi. 6 0:00 X
wc1 = 11.5% 7 0:00 X
d = 51 mm 8 0:00 X
i = 6.02 in/hr P = 10 psi 9 0:00 X
10 0:00 X
X 11
B P = 10 psi X 12
X X 13
X P = 10 psi C x 14
X x 15
x D P = 10 psi X 12
x X 13
X P = 10 psi E X 14
X X 15
X F P = 10 psi X
x X
X P = 10 psi G x # Time
Time to Collect 1
Gallon, Seconds
X x 1 2 5
X H P = 10 psi X 2 4 5
x X 3 6 5
X P = 10 psi I X 4 8 5
X X 5 10 5
X J P = 10 psi X 6 12 4
X 7 14 4
X 8 16 4
d = 51 mm 9 18 4
i = 6.02 in/hr Temp. 77 deg 10 20 4
wc3 = 12.1% Hum. 82 % 11
d = 49 mm 12
i = 5.79 in/hr Average Depth: mm 13
wc2 = 15.4% Avg Rainfall Intensity: in/hr 14
15
12
13
14
15
14-Oct-16
US-2P10
Sediment Concentration Grab
Samples Followed by Runoff Rate
Measurements
Runoff Rate Measurements
TOP OF SLOPE
End Rain: 12:57 PM
12:59 PMEnd Runoff:
(circle "x" for open valves)
x X x x
DDRF Rainfall Testing
Date:
Slope #: 3 Target Rain: 6 in/hr
Notes:
0 mph breeze.
Approx 285 gal collected.
50
5.94
Product:
Lot #:
A
0001318
Page 21
US-2P10, Double Net Poly Fiber Matting, over Loam
Slope Erosion Testing for NTPEP
October 24, 2016
Run #: 1 2 3
Slope No. 1 2 3
Test Date: 14-Oct-16 14-Oct-16 14-Oct-16
Avg Moisture Content: 19.08% 17.81% 15.60%
Location T-1 T-2 T-3
Wt. Of cup + wet soil, g 48.78 45.85 47.55
Wt. Of cup + dry soil, g 43.52 41.06 43.24
Wt. Of cup, g 14.15 14.04 14.08
Wt. Of dry soil, g 29.37 27.02 29.16
Wt. Of water, g 5.26 4.79 4.31
Water Content, w% 17.9% 17.7% 14.8%
Location M-1 M-2 M-3
Wt. Of cup + wet soil, g 44.38 39.46 52.97
Wt. Of cup + dry soil, g 39.29 35.3 47.44
Wt. Of cup, g 14.24 13.47 14.15
Wt. Of dry soil, g 25.05 21.83 33.29
Wt. Of water, g 5.09 4.16 5.53
Water Content, w% 20.3% 19.1% 16.6%
Location B-1 B-2 B-3
Wt. Of cup + wet soil, g 37.47 45.94 45.43
Wt. Of cup + dry soil, g 33.75 41.4 41.23
Wt. Of cup, g 14.17 14.15 13.97
Wt. Of dry soil, g 19.58 27.25 27.26
Wt. Of water, g 3.72 4.54 4.2
Water Content, w% 19.0% 16.7% 15.4%
WATER CONTENT DETERMINATION
Page 22
US-2P10, Double Net Poly Fiber Matting, over Loam
Slope Erosion Testing for NTPEP
October 24, 2016
Sample
Number
Test
Time,
minutes
Time per
Gallon,
sec
Interval
Time, min
Total Time,
min
Collection
Mid-Time,
min
Runoff
Rate,
gal/min
Associated
Runoff, gal
Cumulative
Runoff, gal
1.97 in/hr
2 0.00 0 0.00 0.00 0.00 0.00 0.00 0.00
2-1 3.00 360 9.00 9.00 6.00 0.17 1.50 1.50
2-2 9.00 25 0.42 9.42 9.21 2.40 1.00 2.50
2-3 12.00 19 2.90 12.32 12.16 3.16 9.16 11.66
2-4 15.00 17 2.97 15.28 30.28 3.53 10.47 22.13
2-5 18.00 16 2.98 18.27 36.27 3.75 11.19 33.32
2-6 0.00 0 0.00 18.27 18.00 3.75 0.00 33.32
2-end 22.00 3.73 22.00 1.88 11.19 44.50 Total Collected Runoff (approx)
4.02 in/hr
4 0 0 0.00 0.00 0.00 0.00 0.00 0.00
4-1 2 8 2.13 2.13 2.07 7.50 16.00 16.00
4-2 4 8 2.00 4.13 4.07 7.50 15.00 31.00
4-3 6 8 2.00 6.13 6.07 7.50 15.00 46.00
4-4 8 8 2.00 8.13 8.07 7.50 15.00 61.00
4-5 10 8 2.00 10.13 10.07 7.50 15.00 76.00
4-6 12 8 2.00 12.13 12.07 7.50 15.00 91.00
4-7 14 8 2.00 14.13 14.07 7.50 15.00 106.00
4-8 16 7 1.98 16.12 16.06 8.57 17.00 123.00
4-9 18 7 2.00 18.12 18.06 8.57 17.14 140.14
4-10 20 7 2.00 20.12 20.06 8.57 17.14 157.29
4-end 22.00 1.88 22.00 4.29 8.07 165.36 Total Collected Runoff (approx)
6.14 in/hr
6 0 0 0.00 0.00 0.00 0.00 0.00 0.00
6-1 2 5 2.08 2.08 2.04 12.00 25.00 25.00
6-2 4 5 2.00 4.08 4.04 12.00 24.00 49.00
6-3 6 5 2.00 6.08 6.04 12.00 24.00 73.00
6-4 8 5 2.00 8.08 8.04 12.00 24.00 97.00
6-5 10 5 2.00 10.08 10.04 12.00 24.00 121.00
6-6 12 5 2.00 12.08 12.04 12.00 24.00 145.00
6-7 14 5 2.00 14.08 14.04 12.00 24.00 169.00
6-8 16 5 2.00 16.08 16.04 12.00 24.00 193.00
6-9 18 5 2.00 18.08 18.04 12.00 24.00 217.00
6-10 20 4 1.98 20.07 20.03 15.00 29.75 246.75
6-end 22.00 1.93 22.00 7.50 14.50 261.25 Total Collected Runoff (approx)
14-Oct-16
Slope #1
Page 23
US-2P10, Double Net Poly Fiber Matting, over Loam
Slope Erosion Testing for NTPEP
October 24, 2016
Sample
Number
Test
Time,
minutes
Time per
Gallon,
sec
Interval
Time, min
Total
Time, min
Collection
Mid-Time,
min
Runoff
Rate,
gal/min
Associate
d Runoff,
gal
Cumulative
Runoff, gal
2.01 in/hr
2 0.00 0 0.00 0.00 0.00 0.00 0.00 0.00
2-1 3.00 360 9.00 9.00 6.00 0.17 1.50 1.50
2-2 9.00 33 0.55 9.55 9.28 1.82 1.00 2.50
2-3 12.00 19 2.77 12.32 12.16 3.16 8.74 11.24
2-4 15.00 17 2.97 15.28 30.28 3.53 10.47 21.71
2-5 18.00 16 2.98 18.27 36.27 3.75 11.19 32.89
2-6 0.00 0 0.00 18.27 18.00 3.75 0.00 32.89
2-end 22.00 3.73 22.00 1.88 11.19 44.08 Total Collected Runoff (approx)
4.06 in/hr
4 0 0 0.00 0.00 0.00 0.00 0.00 0.00
4-1 2 8 2.13 2.13 2.07 7.50 16.00 16.00
4-2 6 8 4.00 6.13 6.07 7.50 30.00 46.00
4-3 8 8 2.00 8.13 8.07 7.50 15.00 61.00
4-4 10 7 1.98 10.12 10.06 8.57 17.00 78.00
4-5 12 7 2.00 12.12 12.06 8.57 17.14 95.14
4-6 14 7 2.00 14.12 14.06 8.57 17.14 112.29
4-7 16 7 2.00 16.12 16.06 8.57 17.14 129.43
4-8 18 7 2.00 18.12 18.06 8.57 17.14 146.57
4-9 20 7 2.00 20.12 20.06 8.57 17.14 163.71
4-10 0 0 0.00 20.12 22.00 8.57 0.00 163.71
4-end 22.00 1.88 22.00 4.29 8.07 171.79 Total Collected Runoff (approx)
6.18 in/hr
6 0 0 0.00 0.00 0.00 0.00 0.00 0.00
6-1 2 5 2.08 2.08 2.04 12.00 25.00 25.00
6-2 4 5 2.00 4.08 4.04 12.00 24.00 49.00
6-3 6 5 2.00 6.08 6.04 12.00 24.00 73.00
6-4 8 5 2.00 8.08 8.04 12.00 24.00 97.00
6-5 10 5 2.00 10.08 10.04 12.00 24.00 121.00
6-6 12 4 1.98 12.07 12.03 15.00 29.75 150.75
6-7 14 4 2.00 14.07 14.03 15.00 30.00 180.75
6-8 16 4 2.00 16.07 16.03 15.00 30.00 210.75
6-9 18 4 2.00 18.07 18.03 15.00 30.00 240.75
6-10 20 4 2.00 20.07 20.03 15.00 30.00 270.75
6-end 22.00 1.93 22.00 7.50 14.50 285.25 Total Collected Runoff (approx)
14-Oct-16
Slope #2
Page 24
US-2P10, Double Net Poly Fiber Matting, over Loam
Slope Erosion Testing for NTPEP
October 24, 2016
Sample
Number
Test
Time,
minutes
Time per
Gallon,
sec
Interval
Time, min
Total
Time, min
Collection
Mid-Time,
min
Runoff
Rate,
gal/min
Associated
Runoff, gal
Cumulative
Runoff, gal
2.05 in/hr
2 0.00 0 0.00 0.00 0.00 0.00 0.00 0.00
2-1 3.00 410 9.83 9.83 6.42 0.15 1.44 1.44
2-2 12.00 23 2.55 12.38 12.19 2.61 6.65 8.09
2-3 15.00 19 2.93 15.32 15.16 3.16 9.26 17.35
2-4 18.00 17 2.97 18.28 36.28 3.53 10.47 27.82
2-5 0.00 0 0.00 18.28 0.00 3.53 0.00 27.82
2-6 0.00 0 0.00 18.28 0.00 3.53 0.00 27.82
2-end 22.00 3.72 22.00 1.76 0.00 27.82 Total Collected Runoff (approx)
3.98 in/hr
4 0 0 0.00 0.00 0.00 0.00 0.00 0.00
4-1 2 8 2.13 2.13 2.07 7.50 16.00 16.00
4-2 4 8 2.00 4.13 4.07 7.50 15.00 31.00
4-3 6 8 2.00 6.13 6.07 7.50 15.00 46.00
4-4 8 7 1.98 8.12 8.06 8.57 17.00 63.00
4-5 10 7 2.00 10.12 10.06 8.57 17.14 80.14
4-6 12 7 2.00 12.12 12.06 8.57 17.14 97.29
4-7 14 7 2.00 14.12 14.06 8.57 17.14 114.43
4-8 16 7 2.00 16.12 16.06 8.57 17.14 131.57
4-9 18 7 2.00 18.12 18.06 8.57 17.14 148.71
4-10 20 7 2.00 20.12 20.06 8.57 17.14 165.86
4-end 21.00 0.88 21.00 4.29 3.79 169.64 Total Collected Runoff (approx)
5.94 in/hr
6 0 0 0.00 0.00 0.00 0.00 0.00 0.00
6-1 2 5 2.08 2.08 2.04 12.00 25.00 25.00
6-2 4 5 2.00 4.08 4.04 12.00 24.00 49.00
6-3 6 5 2.00 6.08 6.04 12.00 24.00 73.00
6-4 8 5 2.00 8.08 8.04 12.00 24.00 97.00
6-5 10 5 2.00 10.08 10.04 12.00 24.00 121.00
6-6 12 4 1.98 12.07 12.03 15.00 29.75 150.75
6-7 14 4 2.00 14.07 14.03 15.00 30.00 180.75
6-8 16 4 2.00 16.07 16.03 15.00 30.00 210.75
6-9 18 4 2.00 18.07 18.03 15.00 30.00 240.75
6-10 20 4 2.00 20.07 20.03 15.00 30.00 270.75
6-end 22.00 1.93 22.00 7.50 14.50 285.25 Total Collected Runoff (approx)
14-Oct-16
Slope #3
Page 25
US-2P10, Double Net Poly Fiber Matting, over Loam
Slope Erosion Testing for NTPEP
October 24, 2016
Sample
Number
Test
Time,
minutes
Total
Weight, g
Decanted
Weight, g
Dry
Weight, g
Bottle
Weight, g
Dry
Sediment
Weight, mg
Total
Collected
Water Wt.,
g
Total
Collected
Volume of
Water, l
Sediment
Concentration,
mg/l
Runoff
Sampling
Time
Time to
Collect 1
gal
Associated
Runoff, gal
Associated
Sediment
Conc, mg/l
Associated
Solids Loss,
lbs
1.97 in/hr avg
14-Oct-16 2-1 3.00 378.37 192.70 153.25 151.49 1760.00 225.12 0.23 7818.05 3.00 360 1.50 6916.19 0.09
2-2 6.00 387.35 209.07 152.91 151.50 1410.00 234.44 0.23 6014.33 9.00 25 1.00 1938.13 0.02
2-3 9.00 362.95 173.60 151.02 150.66 360.00 211.93 0.21 1698.67 12.00 19 9.16 2356.79 0.18
2-4 12.00 353.56 167.26 146.91 146.46 450.00 206.65 0.21 2177.59 15.00 17 10.47 2596.37 0.23
2-5 15.00 355.98 175.73 148.07 147.58 490.00 207.91 0.21 2356.79 18.00 16 11.19 0.00
2-6 18.00 351.44 176.61 151.16 150.64 520.00 200.28 0.20 2596.37 0.00 0 0.00 0.00
0.00 AVG = 3776.97 18.00 16 11.19 0.00
4.02 in/hr avg 0.00 Total Solids Lost: 0.51
14-Oct-16 4-1 2.00 363.13 184.59 151.46 151.24 220.00 211.67 0.21 1039.35 2.00 8 16.00 1026.99 0.14
4-2 4.00 369.32 177.39 152.49 152.27 220.00 216.83 0.22 1014.62 4.00 8 15.00 999.71 0.13
4-3 6.00 358.50 171.69 148.44 148.23 210.00 210.06 0.21 999.71 6.00 8 15.00 1087.88 0.14
4-4 8.00 363.25 183.99 151.83 151.60 230.00 211.42 0.21 1087.88 8.00 8 15.00 1227.86 0.15
4-5 10.00 363.91 182.54 152.16 151.90 260.00 211.75 0.21 1227.86 10.00 8 15.00 1390.89 0.17
4-6 12.00 366.95 177.44 151.26 150.96 300.00 215.69 0.22 1390.89 12.00 8 15.00 1356.00 0.17
4-7 14.00 358.44 177.51 151.95 151.67 280.00 206.49 0.21 1356.00 14.00 8 15.00 1284.39 0.16
4-8 16.00 354.75 180.21 152.32 152.06 260.00 202.43 0.20 1284.39 16.00 7 17.00 1126.43 0.16
4-9 18.00 373.98 178.39 152.04 151.79 250.00 221.94 0.22 1126.43 18.00 7 17.14 1202.15 0.17
4-10 20.00 363.12 180.40 146.84 146.58 260.00 216.28 0.22 1202.15 20.00 7 17.14 1409.66 0.20
AVG = 1409.66 22.00 7 8.07 0.00
6.14 in/hr avg Total Solids Lost: 2.10
14-Oct-16 6-1 2.00 371.47 174.23 152.61 152.28 330.00 218.86 0.22 1507.81 2.00 5.00 25.00 1507.81 0.31
6-2 4.00 376.70 183.84 151.55 151.26 290.00 225.15 0.23 1288.03 4.00 5.00 24.00 1288.03 0.26
6-3 6.00 366.85 174.63 147.51 147.24 270.00 219.34 0.22 1230.97 6.00 5.00 24.00 1230.97 0.25
6-4 8.00 367.02 178.72 152.17 151.91 260.00 214.85 0.21 1210.15 8.00 5.00 24.00 1210.15 0.24
6-5 10.00 367.31 177.75 152.89 152.55 340.00 214.42 0.21 1585.67 10.00 5.00 24.00 1585.67 0.32
6-6 12.00 372.00 173.84 151.29 150.94 350.00 220.71 0.22 1585.79 12.00 5.00 24.00 1585.79 0.32
6-7 14.00 351.02 181.14 147.81 147.51 300.00 203.21 0.20 1476.31 14.00 5.00 24.00 1476.31 0.30
6-8 16.00 371.62 185.56 151.96 151.71 250.00 219.66 0.22 1138.12 16.00 5.00 24.00 1138.12 0.23
6-9 18.00 376.24 194.66 152.03 151.77 260.00 224.21 0.22 1159.63 18.00 5.00 24.00 1159.63 0.23
6-10 20.00 384.15 182.14 149.61 149.34 270.00 234.54 0.23 1151.19 20.00 4.00 29.75 1151.19 0.29
AVG = 1333.37 22.00 4.00 14.50 1151.19 0.14
Total Solids Lost: 2.88
Slope #1 - Sediment Concentration
Page 26
US-2P10, Double Net Poly Fiber Matting, over Loam
Slope Erosion Testing for NTPEP
October 24, 2016
Sample
Number
Test
Time,
minutes
Total
Weight, g
Decanted
Weight, g
Dry
Weight, g
Bottle
Weight, g
Dry
Sediment
Weight, mg
Total
Collected
Water Wt.,
g
Total
Collected
Volume of
Water, l
Sediment
Concentration,
mg/l
Runoff
Sampling
Time
Time to
Collect 1
gal
Associated
Runoff, gal
Associated
Sediment
Conc, mg/l
Associated
Solids Loss,
lbs
2.01 in/hr avg
14-Oct-16 2-1 3.00 370.31 182.70 149.95 149.73 220.00 220.36 0.22 998.37 3.00 360 1.50 1615.05 0.02
2-2 6.00 369.25 195.07 149.69 149.20 490.00 219.56 0.22 2231.74 9.00 33 1.00 2499.27 0.02
2-3 9.00 364.49 187.67 152.12 151.59 530.00 212.37 0.21 2495.64 12.00 19 8.74 2560.82 0.19
2-4 12.00 360.57 179.70 152.81 152.29 520.00 207.76 0.21 2502.89 15.00 17 10.47 2628.52 0.23
2-5 15.00 367.01 176.57 148.33 147.77 560.00 218.68 0.22 2560.82 18.00 16 11.19 0.00
2-6 18.00 350.48 180.28 152.65 152.13 520.00 197.83 0.20 2628.52 0.00 0 0.00 0.00
AVG = 2236.33 18.00 16 11.19 0.00
4.06 in/hr avg Total Solids Lost: 0.46
14-Oct-16 4-1 2.00 358.99 185.28 151.88 151.14 740.00 207.11 0.21 3572.98 2.00 8 16.00 2949.12 0.39
4-2 4.00 370.93 191.14 151.60 151.09 510.00 219.33 0.22 2325.26 6.00 8 30.00 1739.85 0.44
4-3 6.00 370.42 184.20 152.01 151.63 380.00 218.41 0.22 1739.85 8.00 8 15.00 1738.53 0.22
4-4 8.00 347.86 178.86 146.54 146.19 350.00 201.32 0.20 1738.53 10.00 7 17.00 1920.55 0.27
4-5 10.00 365.54 189.80 152.06 151.65 410.00 213.48 0.21 1920.55 12.00 7 17.14 1981.68 0.28
4-6 12.00 378.09 186.39 151.01 150.56 450.00 227.08 0.23 1981.68 14.00 7 17.14 2129.53 0.30
4-7 14.00 368.00 178.76 151.99 151.53 460.00 216.01 0.22 2129.53 16.00 7 17.14 2104.60 0.30
4-8 16.00 374.38 191.62 151.06 150.59 470.00 223.32 0.22 2104.60 18.00 7 17.14 2031.69 0.29
4-9 18.00 373.17 177.45 151.68 151.23 450.00 221.49 0.22 2031.69 20.00 7 17.14 1954.19 0.28
4-10 20.00 371.73 185.09 151.69 151.26 430.00 220.04 0.22 1954.19 0.00 0 0.00 2149.89 0.00
AVG = 2149.89 22.00 0 8.07 0.00
6.18 in/hr avg Total Solids Lost: 2.78
14-Oct-16 6-1 2.00 364.60 189.47 152.31 151.96 350.00 212.29 0.21 1648.69 2.00 5.00 25.00 1648.69 0.34
6-2 4.00 381.21 182.36 152.49 152.11 380.00 228.72 0.23 1661.42 4.00 5.00 24.00 1661.42 0.33
6-3 6.00 371.22 184.44 152.63 152.27 360.00 218.59 0.22 1646.92 6.00 5.00 24.00 1646.92 0.33
6-4 8.00 356.15 180.38 152.25 151.90 350.00 203.90 0.20 1716.53 8.00 5.00 24.00 1716.53 0.34
6-5 10.00 351.31 175.44 145.85 145.50 350.00 205.46 0.21 1703.49 10.00 5.00 24.00 1703.49 0.34
6-6 12.00 374.56 189.16 150.10 149.69 410.00 224.46 0.22 1826.61 12.00 4.00 29.75 1826.61 0.45
6-7 14.00 370.35 178.04 152.91 152.52 390.00 217.44 0.22 1793.60 14.00 4.00 30.00 1793.60 0.45
6-8 16.00 361.13 177.87 151.68 151.30 380.00 209.45 0.21 1814.28 16.00 4.00 30.00 1814.28 0.45
6-9 18.00 361.13 177.87 151.66 151.30 360.00 209.47 0.21 1718.62 18.00 4.00 30.00 1718.62 0.43
6-10 20.00 375.52 184.89 151.91 151.47 440.00 223.61 0.22 1967.71 20.00 4.00 30.00 1967.71 0.49
AVG = 1749.79 22.00 4 14.50 1967.71 0.24
Total Solids Lost: 4.21
Slope #2 - Sediment Concentration
Page 27
US-2P10, Double Net Poly Fiber Matting, over Loam
Slope Erosion Testing for NTPEP
October 24, 2016
Sample
Number
Test
Time,
minutes
Total
Weight, g
Decanted
Weight, g
Dry
Weight, g
Bottle
Weight, g
Dry
Sediment
Weight, mg
Total
Collected
Water Wt.,
g
Total
Collected
Volume of
Water, l
Sediment
Concentration,
mg/l
Runoff
Sampling
Time
Time to
Collect 1
gal
Associated
Runoff, gal
Associated
Sediment
Conc, mg/l
Associated
Solids Loss,
lbs
2.05 in/hr avg
14-Oct-16 2-1 3.00 370.83 188.15 152.23 151.94 290.00 218.60 0.22 1326.62 3.00 410.00 1.44 1375.98 0.02
2-2 6.00 376.88 186.89 152.37 152.05 320.00 224.51 0.22 1425.33 12.00 23.00 6.65 4825.39 0.27
2-3 9.00 380.03 179.45 152.30 151.16 1140.00 227.73 0.23 5005.93 15.00 19.00 9.26 3540.79 0.27
2-4 12.00 343.07 183.37 151.46 150.57 890.00 191.61 0.19 4644.85 18.00 17.00 10.47 2831.09 0.25
2-5 15.00 372.99 188.35 152.70 151.92 780.00 220.29 0.22 3540.79 0.00 0.00 0.00 0.00
2-6 18.00 359.96 180.38 151.56 150.97 590.00 208.40 0.21 2831.09 0.00 0.00 0.00 0.00
AVG = 3129.10 0.00 0.00 0.00 0.00
3.98 in/hr avg Total Solids Lost: 0.81
14-Oct-16 4-1 2.00 362.03 181.74 152.08 151.67 410.00 209.95 0.21 1952.85 2.00 8.00 16.00 1878.83 0.25
4-2 4.00 379.08 182.58 151.91 151.50 410.00 227.17 0.23 1804.82 4.00 8.00 15.00 1992.30 0.25
4-3 6.00 372.33 177.22 151.48 151.04 440.00 220.85 0.22 1992.30 6.00 8.00 15.00 1843.54 0.23
4-4 8.00 363.71 182.84 152.16 151.77 390.00 211.55 0.21 1843.54 8.00 7.00 17.00 1909.00 0.27
4-5 10.00 370.92 181.90 150.91 150.49 420.00 220.01 0.22 1909.00 10.00 7.00 17.14 1797.67 0.26
4-6 12.00 370.60 179.82 148.09 147.69 400.00 222.51 0.22 1797.67 12.00 7.00 17.14 1582.43 0.23
4-7 14.00 366.85 184.03 151.99 151.65 340.00 214.86 0.21 1582.43 14.00 7.00 17.14 1573.13 0.23
4-8 16.00 366.85 182.74 150.72 150.38 340.00 216.13 0.22 1573.13 16.00 7.00 17.14 1628.22 0.23
4-9 18.00 371.64 189.33 150.54 150.18 360.00 221.10 0.22 1628.22 18.00 7.00 17.14 1559.99 0.22
4-10 20.00 366.06 182.32 148.11 147.77 340.00 217.95 0.22 1559.99 20.00 7.00 17.14 1764.39 0.25
AVG = 1764.39 21.00 7.00 3.79 0.00
5.94 in/hr avg Total Solids Lost: 2.42
14-Oct-16 6-1 2.00 363.67 180.85 149.02 148.67 350.00 214.65 0.21 1630.56 2.00 5.00 25.00 1630.56 0.34
6-2 4.00 379.13 182.40 151.68 151.30 380.00 227.45 0.23 1670.70 4.00 5.00 24.00 1670.70 0.33
6-3 6.00 365.61 175.12 152.19 151.86 330.00 213.42 0.21 1546.25 6.00 5.00 24.00 1546.25 0.31
6-4 8.00 366.60 175.82 150.65 150.29 360.00 215.95 0.22 1667.05 8.00 5.00 24.00 1667.05 0.33
6-5 10.00 372.52 176.25 152.05 151.69 360.00 220.47 0.22 1632.88 10.00 5.00 24.00 1632.88 0.33
6-6 12.00 362.04 178.48 152.25 151.92 330.00 209.79 0.21 1573.00 12.00 4.00 29.75 1573.00 0.39
6-7 14.00 370.10 181.65 152.49 152.14 350.00 217.61 0.22 1608.38 14.00 4.00 30.00 1608.38 0.40
6-8 16.00 343.78 177.20 152.40 152.10 300.00 191.38 0.19 1567.56 16.00 4.00 30.00 1567.56 0.39
6-9 18.00 373.53 171.71 148.76 148.42 340.00 224.77 0.22 1512.66 18.00 4.00 30.00 1512.66 0.38
6-10 20.00 373.07 169.14 151.34 150.99 350.00 221.73 0.22 1578.50 20.00 4.00 30.00 1578.50 0.40
AVG = 1598.75 22.00 4.00 14.50 1578.50 0.19
Total Solids Lost: 3.80
Slope #3 - Sediment Concentration
Page 28
US-2P10, Double Net Poly Fiber Matting, over Loam
Slope Erosion Testing for NTPEP
October 24, 2016
Total Dry Sediments: 0.90 lb Total Dry Sediments: 0.80 lb Total Dry Sediments: 1.00 lb
2 in/hr Collected 2 in/hr Collected 2 in/hr Collected
Total Sample Wet Weight, lb 0.900 Total Sample Wet Weight, lb 0.798 Total Sample Wet Weight, lb 0.998
Wt. Of cup + wet soil, g 1 Wt. Of cup + wet soil, g 1 Wt. Of cup + wet soil, g 1
Wt. Of cup + dry soil, g 1 Wt. Of cup + dry soil, g 1 Wt. Of cup + dry soil, g 1
Wt. Of cup, g 0 Wt. Of cup, g 0 Wt. Of cup, g 0
Wt. Of dry soil, g 1 Wt. Of dry soil, g 1.000 Wt. Of dry soil, g 1.000
Wt. Of water, g 0 Wt. Of water, g 0.000 Wt. Of water, g 0.000
Water Content, w% 0.0% Water Content, w% 0.000 Water Content, w% 0.000
Total Sample Dry Weight, lb 0.900 Total Sample Dry Weight, lb 0.798 Total Sample Dry Weight, lb 0.998
Total Dry Sediments: 2.28 lb Total Dry Sediments: 2.76 lb Total Dry Sediments: 2.51 lb
4 in/hr Collected 4 in/hr Collected 4 in/hr Collected
Total Sample Wet Weight, lb 2.284 Total Sample Wet Weight, lb 2.762 Total Sample Wet Weight, lb 2.51
Wt. Of cup + wet soil, g 1 Wt. Of cup + wet soil, g 1 Wt. Of cup + wet soil, g 1
Wt. Of cup + dry soil, g 1 Wt. Of cup + dry soil, g 1 Wt. Of cup + dry soil, g 1
Wt. Of cup, g 0 Wt. Of cup, g 0 Wt. Of cup, g 0
Wt. Of dry soil, g 1.000 Wt. Of dry soil, g 1.000 Wt. Of dry soil, g 1.000
Wt. Of water, g 0.000 Wt. Of water, g 0.000 Wt. Of water, g 0.000
Water Content, w% 0.000 Water Content, w% 0.000 Water Content, w% 0.000
Total Sample Dry Weight, lb 2.284 Total Sample Dry Weight, lb 2.762 Total Sample Dry Weight, lb 2.510
Total Dry Sediments: 1.91 lb Total Dry Sediments: 4.17 lb Total Dry Sediments: 3.83 lb
6 in/hr Collected 6 in/hr Collected 6 in/hr Collected
Total Sample Wet Weight, lb 1.906 Total Sample Wet Weight, lb 4.166 Total Sample Wet Weight, lb 3.83
Wt. Of cup + wet soil, g 1 Wt. Of cup + wet soil, g 1 Wt. Of cup + wet soil, g 1
Wt. Of cup + dry soil, g 1 Wt. Of cup + dry soil, g 1 Wt. Of cup + dry soil, g 1
Wt. Of cup, g 0 Wt. Of cup, g 0 Wt. Of cup, g 0
Wt. Of dry soil, g 1.000 Wt. Of dry soil, g 1.000 Wt. Of dry soil, g 1.000
Wt. Of water, g 0.000 Wt. Of water, g 0.000 Wt. Of water, g 0.000
Water Content, w% 0.000 Water Content, w% 0.000 Water Content, w% 0.000
Total Sample Dry Weight, lb 1.906 Total Sample Dry Weight, lb 4.166 Total Sample Dry Weight, lb 3.830
TestTotal Dry Sediments: 5 lb 8 lb 7 lb
SLOPE #1 - Sediment Weights SLOPE #2 - Sediment Weights SLOPE #3 - Sediment Weights
Page 29
US-2P10, Double Net Poly Fiber Matting, over Loam
Slope Erosion Testing for NTPEP
October 24, 2016
Appendix
APPENDIX B – TEST SOIL
Test Soil Grain Size Distribution Curve
Compaction Curves
Field Compaction Verification
Page 30
August 2016
Corporate Laboratory: 9063 Bee Caves Road, Austin, TX 78733 / 800-880-TEST / 512-263-2101 / [email protected]
Denver Downs Research Facility: 4915 Clemson Blvd., Anderson, SC 29621 / 864-242-2220 / [email protected]
0
10
20
30
40
50
60
70
80
90
100
0.0001 0.001 0.01 0.1 1 10 100
Pe
rce
nt
Fin
er
Particle Size (mm)
DDRF ASTM D 6459 Blended Test Soil
ASTM D 6459 Target Loam Range
Plasticity (ASTM D 4318) Liquid Limit: 30 Plastic Limit: 22 Plastic Index: 8
Soil classifies as a clayey sand (SC) in accordance with ASTM D 2487
Page 31
Tested by: S&ME Checked by: J.E.Sprague
The testing herein is based upon accepted industry practice as well as the test method listed. Test results reported herein do not apply
to samples other than those tested. TRI neither accepts responsibility for nor makes claim as to the final use and purpose of the material.
TRI observes and maintains client confidentiality. TRI limits reproduction of this report, except in full, without prior approval of TRI.
James Sprague, 8/24/16
80
85
90
95
100
105
110
115
120
10 15 20 25 30 35 40 45 50
Dry
Den
sity
(p
cf)
Moisture Content (%)
Proctor Compaction Test
2.80
2.60
2.70
Project: DDRF Sample No.: D6459 Slopes Test Date: August 2016 Test Method: ASTM D 698 - Method A Maximum Dry Density (pcf): 108.7 Optimum Moisture Content (%): 17.2
Page 32
Location: Date: 8/24/2016
Drive Cylinder: Dia., mm = 98 Length, mm = 127 Volume, ft3= 0.034
Tube # B (S1) G (S2) J (S3) 4 5 6
Wt. of Wet Soil + Mold (g) 2314.4 2355.8 2362.0
Wt. of Mold (g) 613.0 614.0 613.0
Wt. of Wet Soil (g) 1701.4 1741.8 1749.0 0.0 0.0 0.0
Tare Number D8 D14 D7
Wt. of Tare (g) 232.8 229.5 231.4
Wt. of Wet Soil + Tare (g) 816.8 730.1 704.5
Wt. of Dry Soil + Tare (g) 733.1 645.6 628.5
Water Content, w (%) 16.715 20.300 19.151 #DIV/0! #DIV/0! #DIV/0!
Wet density, ɣwet = W' / Vh (lb/ft3) = 110.77 113.41 113.88 0.00 0.00 0.00
Dry density, ɣdry = ɣwet / [1 + w] (lb/ft3) = 94.91 94.27 95.57 #DIV/0! #DIV/0! #DIV/0!
Max Std. Proctor Dry density (lb/ft3) = 108.70 108.70 108.70
Opt. Moisture (%) = 17.20 17.20 17.20
Compaction as % of Std. Proctor = 87.3% 86.7% 87.9%
Avg Compaction as % of Std. Proctor = 87.3%
Compaction Worksheet
ASTM D 2937
DDRF SLOPES
Compaction
Moisture Content
Quality Review/Date
Tested by: J.E. Sprague
The testing herein is based upon accepted industry practice as well as the test method listed. Test results reported herein do not apply
to samples other than those tested. TRI neither accepts responsibility for nor makes claim as to the final use and purpose of the material.
TRI observes and maintains client confidentiality. TRI limits reproduction of this report, except in full, without prior approval of TRI.
James Sprague, 8/24/16
Page 33
US-2P10, Double Net Poly Fiber Matting, over Loam
Slope Erosion Testing for NTPEP
October 24, 2016
Appendix
APPENDIX C – RAINFALL DATA
Raindrop Size Distribution
Rainfall Calibration
Page 34
0.00
5.00
10.00
15.00
20.00
25.00
30.00
35.00
40.00
45.00
50.00
55.00
60.00
65.00
70.00
75.00
80.00
2 4 6
% o
f R
ain
dro
ps
by
Mas
s
Rainfall Intensity, in/hr
Raindrop Size Distribution August2016
0.21 - 0.425 mm 0.425 - 1.0 mm 1.0 - 2.0 mm 2.0 - 4.75 mm 4.75 - 6.3 mm 6.3 - 9.5 mm
Target raindrop size and distribution (no more than 10 % greater than 6 mm (0.24 in.) and no more than 10 % smaller than 1 mm (0.04 in.)).
Page 35
Date: Start Time: End Time:
Test Time: 5.00 min. (circle "x" for open valves)
P = 9 psi
X d = 4 mm d = 3 mm
X P = 9 psi i = 1.89 in/hr B i = 1.42 in/hr
X d = 4 mm d = 4 mm X
X i = 1.89 in/hr C i = 1.89 in/hr P = 9 psi X
X d = 4 mm d = 5 mm X
X P = 9 psi i = 1.89 in/hr D i = 2.36 in/hr X
X d = 5 mm d = 5 mm X
X i = 2.36 in/hr E i = 2.36 in/hr P = 9 psi X
X d = 5 mm d = 5 mm X
X P = 9 psi i = 2.36 in/hr F i = 2.36 in/hr X
X d = 5 mm d = 6 mm X
X i = 2.36 in/hr G i = 2.83 in/hr P = 9 psi X
X d = 6 mm d = 5 mm X
X P = 9 psi i = 2.83 in/hr H i = 2.36 in/hr X
X d = 5 mm d = 5 mm X
X i = 2.36 in/hr I i = 2.36 in/hr P = 9 psi X
X d = 4 mm d = 4 mm X
X P = 9 psi i = 1.89 in/hr J i = 1.89 in/hr X
X d = 3 mm d = 3 mm
X i = 1.42 in/hr i = 1.42 in/hr
Bottom Catch: 33 gal
Inlet Pressure: 16 psi
Average Wind: 0 mph
Average Depth: 4.5 mm
Average Rainfall Intensity: 2.13 in/hr
Christiansen Uniformity Coefficient: 83
24-Aug-16
11
5 6
4
7 8
9 10
3
12
19 20
13
15 16
17
14
18
Rainfall Calibration
TOP OF SLOPE
DDRF
Slope 1 - Target 2 in/hr
X X X X
1 2
A
10:25 AM 10:30 AM
Page 36
Date: Start Time: End Time:
Test Time: 5.00 min. (circle "x" for open valves)
P = 9 psi
X d = 7 mm d = 8 mm
X P = 9 psi i = 3.31 in/hr B i = 3.78 in/hr
X d = 8 mm d = 9 mm X
X i = 3.78 in/hr C i = 4.25 in/hr P = 9 psi X
X d = 9 mm d = 9 mm X
X P = 9 psi i = 4.25 in/hr D i = 4.25 in/hr X
X d = 9 mm d = 9 mm X
X i = 4.25 in/hr E i = 4.25 in/hr P = 9 psi X
X d = 9 mm d = 10 mm X
X P = 9 psi i = 4.25 in/hr F i = 4.72 in/hr X
X d = 10 mm d = 9 mm X
X i = 4.72 in/hr G i = 4.25 in/hr P = 9 psi X
X d = 8 mm d = 8 mm X
X P = 9 psi i = 3.78 in/hr H i = 3.78 in/hr X
X d = 8 mm d = 8 mm X
X i = 3.78 in/hr I i = 3.78 in/hr P = 9 psi X
X d = 8 mm d = 8 mm X
X P = 9 psi i = 3.78 in/hr J i = 3.78 in/hr X
X d = 8 mm d = 7 mm
X i = 3.78 in/hr i = 3.31 in/hr
Bottom Catch: 67 gal
Inlet Pressure: 16 psi
Average Wind: 0 mph
Average Depth: 8.45 mm
Average Rainfall Intensity: 3.99 in/hr
Christiansen Uniformity Coefficient: 92
10:35 AM 10:40 AM24-Aug-16
TOP OF SLOPE
DDRF
Rainfall Calibration
Slope 1 - Target 4 in/hr
7 8
9 10
3 4
19 20
13 14
18
5 6
A
15 16
17
X X X X
1 2
11 12
Page 37
Date: Start Time: End Time:
Test Time: 5.00 min. (circle "x" for open valves)
P = 9 psi
X d = 11 mm d = 11 mm
X P = 9 psi i = 5.20 in/hr B i = 5.20 in/hr
X d = 13 mm d = 12 mm X
X i = 6.14 in/hr C i = 5.67 in/hr P = 9 psi X
X d = 13 mm d = 13 mm X
X P = 9 psi i = 6.14 in/hr D i = 6.14 in/hr X
X d = 13 mm d = 13 mm X
X i = 6.14 in/hr E i = 6.14 in/hr P = 9 psi X
X d = 14 mm d = 13 mm X
X P = 9 psi i = 6.61 in/hr F i = 6.14 in/hr X
X d = 14 mm d = 14 mm X
X i = 6.61 in/hr G i = 6.61 in/hr P = 9 psi X
X d = 13 mm d = 13 mm X
X P = 9 psi i = 6.14 in/hr H i = 6.14 in/hr X
X d = 13 mm d = 13 mm X
X i = 6.14 in/hr I i = 6.14 in/hr P = 9 psi X
X d = 13 mm d = 12 mm X
X P = 9 psi i = 6.14 in/hr J i = 5.67 in/hr X
X d = 11 mm d = 12 mm
X i = 5.20 in/hr i = 5.67 in/hr
Bottom Catch: 100 gal
Inlet Pressure: 16 psi
Average Wind: 0 mph
Average Depth: 12.7 mm
Average Rainfall Intensity: 6.00 in/hr
Christiansen Uniformity Coefficient: 94
24-Aug-16
11
5 6
4
7 8
9 10
3
12
19 20
13
15 16
17
14
18
Slope 1 - Target 6 in/hr
TOP OF SLOPE
DDRF
Rainfall Calibration
X X X X
1 2
A
10:45 AM 10:50 AM
Page 38
Date: Start Time: End Time:
Test Time: 5.00 min. (circle "x" for open valves)
P = 9 psi
d = 3 mm d = 4 mm X
i = 1.42 in/hr B i = 1.89 in/hr P = 9 psi X
X d = 4 mm d = 3 mm X
X P = 9 psi i = 1.89 in/hr C i = 1.42 in/hr X
X d = 4 mm d = 4 mm X
X i = 1.89 in/hr D i = 1.89 in/hr P = 9 psi X
X d = 4 mm d = 4 mm X
X P = 9 psi i = 1.89 in/hr E i = 1.89 in/hr X
X d = 5 mm d = 5 mm X
X i = 2.36 in/hr F i = 2.36 in/hr P = 9 psi X
X d = 5 mm d = 5 mm X
X P = 9 psi i = 2.36 in/hr G i = 2.36 in/hr X
X d = 5 mm d = 4 mm X
X i = 2.36 in/hr H i = 1.89 in/hr P = 9 psi X
X d = 4 mm d = 5 mm X
X P = 9 psi i = 1.89 in/hr I i = 2.36 in/hr X
X d = 4 mm d = 4 mm X
X i = 1.89 in/hr J i = 1.89 in/hr P = 9 psi X
d = 3 mm d = 4 mm X
i = 1.42 in/hr i = 1.89 in/hr X
Bottom Catch: 33 gal
Inlet Pressure: 16 psi
Average Wind: 0 mph
Average Depth: 4.15 mm
Average Rainfall Intensity: 1.96 in/hr
Christiansen Uniformity Coefficient: 88
10:55 AM 11:00 AM17-Aug-16
TOP OF SLOPE
DDRF
Rainfall Calibration
Slope 2 - Target 2 in/hr
7 8
9 10
3 4
19 20
13 14
18
5 6
A
15 16
17
X X X X
1 2
11 12
Page 39
Date: Start Time: End Time:
Test Time: 5.00 min. (circle "x" for open valves)
P = 9 psi
d = 7 mm d = 8 mm X
i = 3.31 in/hr B i = 3.78 in/hr P = 9 psi X
X d = 8 mm d = 8 mm X
X P = 9 psi i = 3.78 in/hr C i = 3.78 in/hr X
X d = 9 mm d = 9 mm X
X i = 4.25 in/hr D i = 4.25 in/hr P = 9 psi X
X d = 9 mm d = 9 mm X
X P = 9 psi i = 4.25 in/hr E i = 4.25 in/hr X
X d = 10 mm d = 10 mm X
X i = 4.72 in/hr F i = 4.72 in/hr P = 9 psi X
X d = 9 mm d = 9 mm X
X P = 9 psi i = 4.25 in/hr G i = 4.25 in/hr X
X d = 10 mm d = 9 mm X
X i = 4.72 in/hr H i = 4.25 in/hr P = 9 psi X
X d = 9 mm d = 9 mm X
X P = 9 psi i = 4.25 in/hr I i = 4.25 in/hr X
X d = 8 mm d = 9 mm X
X i = 3.78 in/hr J i = 4.25 in/hr P = 9 psi X
d = 7 mm d = 9 mm X
i = 3.31 in/hr i = 4.25 in/hr X
Bottom Catch: 67 gal
Inlet Pressure: 16 psi
Average Wind: 0 mph
Average Depth: 8.75 mm
Average Rainfall Intensity: 4.13 in/hr
Christiansen Uniformity Coefficient: 93
17-Aug-16
11
5 6
4
7 8
9 10
3
12
19 20
13
15 16
17
14
18
Slope 2 - Target 4 in/hr
TOP OF SLOPE
DDRF
Rainfall Calibration
X X X X
1 2
A
11:05 AM 11:10 AM
Page 40
Date: Start Time: End Time:
Test Time: 5.00 min. (circle "x" for open valves)
P = 9 psi
d = 11 mm d = 11 mm X
i = 5.20 in/hr B i = 5.20 in/hr P = 9 psi X
X d = 12 mm d = 12 mm X
X P = 9 psi i = 5.67 in/hr C i = 5.67 in/hr X
X d = 13 mm d = 12 mm X
X i = 6.14 in/hr D i = 5.67 in/hr P = 9 psi X
X d = 13 mm d = 13 mm X
X P = 9 psi i = 6.14 in/hr E i = 6.14 in/hr X
X d = 13 mm d = 13 mm X
X i = 6.14 in/hr F i = 6.14 in/hr P = 9 psi X
X d = 14 mm d = 15 mm X
X P = 9 psi i = 6.61 in/hr G i = 7.09 in/hr X
X d = 14 mm d = 15 mm X
X i = 6.61 in/hr H i = 7.09 in/hr P = 9 psi X
X d = 13 mm d = 14 mm X
X P = 9 psi i = 6.14 in/hr I i = 6.61 in/hr X
X d = 13 mm d = 13 mm X
X i = 6.14 in/hr J i = 6.14 in/hr P = 9 psi X
d = 12 mm d = 12 mm X
i = 5.67 in/hr i = 5.67 in/hr X
Bottom Catch: 100 gal
Inlet Pressure: 16 psi
Average Wind: 0 mph
Average Depth: 12.9 mm
Average Rainfall Intensity: 6.09 in/hr
Christiansen Uniformity Coefficient: 94
11:15 AM 11:20 AM17-Aug-16
TOP OF SLOPE
DDRF
Rainfall Calibration
Slope 2 - Target 6 in/hr
7 8
9 10
3 4
19 20
13 14
18
5 6
A
15 16
17
X X X X
1 2
11 12
Page 41
Date: Start Time: End Time:
Test Time: 5.00 min. (circle "x" for open valves)
P = 9 psi
d = 4 mm d = 4 mm X
i = 1.89 in/hr B i = 1.89 in/hr P = 9 psi X
X d = 4 mm d = 4 mm X
X P = 9 psi i = 1.89 in/hr C i = 1.89 in/hr X
X d = 4 mm d = 4 mm X
X i = 1.89 in/hr D i = 1.89 in/hr P = 9 psi X
X d = 4 mm d = 4 mm X
X P = 9 psi i = 1.89 in/hr E i = 1.89 in/hr X
X d = 5 mm d = 5 mm X
X i = 2.36 in/hr F i = 2.36 in/hr P = 9 psi X
X d = 5 mm d = 5 mm X
X P = 9 psi i = 2.36 in/hr G i = 2.36 in/hr X
X d = 5 mm d = 5 mm X
X i = 2.36 in/hr H i = 2.36 in/hr P = 9 psi X
X d = 4 mm d = 4 mm X
X P = 9 psi i = 1.89 in/hr I i = 1.89 in/hr X
X d = 4 mm d = 4 mm X
X i = 1.89 in/hr J i = 1.89 in/hr P = 9 psi X
d = 4 mm d = 4 mm X
i = 1.89 in/hr i = 1.89 in/hr X
Bottom Catch: 33 gal
Inlet Pressure: 16 psi
Average Wind: 0 mph
Average Depth: 4.3 mm
Average Rainfall Intensity: 2.03 in/hr
Christiansen Uniformity Coefficient: 90
30-Aug-16
11
5 6
4
7 8
9 10
3
12
19 20
13
15 16
17
14
18
Slope 3 - Target 2 in/hr
TOP OF SLOPE
DDRF
Rainfall Calibration
X X X X
1 2
A
11:25 AM 11:30 AM
Page 42
Date: Start Time: End Time:
Test Time: 5.00 min. (circle "x" for open valves)
P = 9 psi
d = 8 mm d = 8 mm X
i = 3.78 in/hr B i = 3.78 in/hr P = 10 psi X
X d = 8 mm d = 8 mm X
X P = 10 psi i = 3.78 in/hr C i = 3.78 in/hr X
X d = 8 mm d = 8 mm X
X i = 3.78 in/hr D i = 3.78 in/hr P = 10 psi X
X d = 9 mm d = 9 mm X
X P = 10 psi i = 4.25 in/hr E i = 4.25 in/hr X
X d = 9 mm d = 9 mm X
X i = 4.25 in/hr F i = 4.25 in/hr P = 10 psi X
X d = 9 mm d = 9 mm X
X P = 10 psi i = 4.25 in/hr G i = 4.25 in/hr X
X d = 9 mm d = 9 mm X
X i = 4.25 in/hr H i = 4.25 in/hr P = 10 psi X
X d = 9 mm d = 9 mm X
X P = 10 psi i = 4.25 in/hr I i = 4.25 in/hr X
X d = 8 mm d = 8 mm X
X i = 3.78 in/hr J i = 3.78 in/hr P = 10 psi X
d = 8 mm d = 8 mm X
i = 3.78 in/hr i = 3.78 in/hr X
Bottom Catch: 67 gal
Inlet Pressure: 16 psi
Average Wind: 0 mph
Average Depth: 8.5 mm
Average Rainfall Intensity: 4.02 in/hr
Christiansen Uniformity Coefficient: 94
11:35 AM 11:40 AM30-Aug-16
TOP OF SLOPE
DDRF
Rainfall Calibration
Slope 3 - Target 4 in/hr
7 8
9 10
3 4
19 20
13 14
18
5 6
A
15 16
17
X X X X
1 2
11 12
Page 43
Date: Start Time: End Time:
Test Time: 5.00 min. (circle "x" for open valves)
P = 9 psi
d = 12 mm d = 12 mm X
i = 5.67 in/hr B i = 5.67 in/hr P = 9 psi X
X d = 12 mm d = 12 mm X
X P = 9 psi i = 5.67 in/hr C i = 5.67 in/hr X
X d = 13 mm d = 13 mm X
X i = 6.14 in/hr D i = 6.14 in/hr P = 9 psi X
X d = 13 mm d = 13 mm X
X P = 9 psi i = 6.14 in/hr E i = 6.14 in/hr X
X d = 13 mm d = 13 mm X
X i = 6.14 in/hr F i = 6.14 in/hr P = 9 psi X
X d = 13 mm d = 13 mm X
X P = 9 psi i = 6.14 in/hr G i = 6.14 in/hr X
X d = 13 mm d = 13 mm X
X i = 6.14 in/hr H i = 6.14 in/hr P = 9 psi X
X d = 13 mm d = 13 mm X
X P = 9 psi i = 6.14 in/hr I i = 6.14 in/hr X
X d = 13 mm d = 13 mm X
X i = 6.14 in/hr J i = 6.14 in/hr P = 9 psi X
d = 12 mm d = 12 mm X
i = 5.67 in/hr i = 5.67 in/hr X
Bottom Catch: 100 gal
Inlet Pressure: 16 psi
Average Wind: 0 mph
Average Depth: 12.7 mm
Average Rainfall Intensity: 6.00 in/hr
Christiansen Uniformity Coefficient: 97
30-Aug-16
11
5 6
4
7 8
9 10
3
12
19 20
13
15 16
17
14
18
Slope 3 - Target 6 in/hr
TOP OF SLOPE
DDRF
Rainfall Calibration
X X X X
1 2
A
11:45 AM 11:50 AM
Page 44
US-2P10, Double Net Poly Fiber Matting, over Loam
Slope Erosion Testing for NTPEP
October 24, 2016
Appendix
APPENDIX D – ANCHORAGE PATTERN