long-term surface infiltration monitoring of permeable … · 2020. 6. 18. · location 2 ....
TRANSCRIPT
![Page 1: Long-Term Surface Infiltration Monitoring of Permeable … · 2020. 6. 18. · Location 2 . Location 3 (inches/hr) 18 months Post Construction : 4/11/2012 . 176 227 291 150 181 53](https://reader035.vdocument.in/reader035/viewer/2022071114/5feb5a89283099506e2ac08c/html5/thumbnails/1.jpg)
Long-Term Surface Infiltration Monitoring of
Permeable Interlocking Concrete Pavement
Kevin Earley, Nicolock Paving Stones
![Page 2: Long-Term Surface Infiltration Monitoring of Permeable … · 2020. 6. 18. · Location 2 . Location 3 (inches/hr) 18 months Post Construction : 4/11/2012 . 176 227 291 150 181 53](https://reader035.vdocument.in/reader035/viewer/2022071114/5feb5a89283099506e2ac08c/html5/thumbnails/2.jpg)
![Page 3: Long-Term Surface Infiltration Monitoring of Permeable … · 2020. 6. 18. · Location 2 . Location 3 (inches/hr) 18 months Post Construction : 4/11/2012 . 176 227 291 150 181 53](https://reader035.vdocument.in/reader035/viewer/2022071114/5feb5a89283099506e2ac08c/html5/thumbnails/3.jpg)
![Page 4: Long-Term Surface Infiltration Monitoring of Permeable … · 2020. 6. 18. · Location 2 . Location 3 (inches/hr) 18 months Post Construction : 4/11/2012 . 176 227 291 150 181 53](https://reader035.vdocument.in/reader035/viewer/2022071114/5feb5a89283099506e2ac08c/html5/thumbnails/4.jpg)
PICP Case Study - Lindenhurst Library
![Page 5: Long-Term Surface Infiltration Monitoring of Permeable … · 2020. 6. 18. · Location 2 . Location 3 (inches/hr) 18 months Post Construction : 4/11/2012 . 176 227 291 150 181 53](https://reader035.vdocument.in/reader035/viewer/2022071114/5feb5a89283099506e2ac08c/html5/thumbnails/5.jpg)
Design
![Page 6: Long-Term Surface Infiltration Monitoring of Permeable … · 2020. 6. 18. · Location 2 . Location 3 (inches/hr) 18 months Post Construction : 4/11/2012 . 176 227 291 150 181 53](https://reader035.vdocument.in/reader035/viewer/2022071114/5feb5a89283099506e2ac08c/html5/thumbnails/6.jpg)
![Page 7: Long-Term Surface Infiltration Monitoring of Permeable … · 2020. 6. 18. · Location 2 . Location 3 (inches/hr) 18 months Post Construction : 4/11/2012 . 176 227 291 150 181 53](https://reader035.vdocument.in/reader035/viewer/2022071114/5feb5a89283099506e2ac08c/html5/thumbnails/7.jpg)
![Page 8: Long-Term Surface Infiltration Monitoring of Permeable … · 2020. 6. 18. · Location 2 . Location 3 (inches/hr) 18 months Post Construction : 4/11/2012 . 176 227 291 150 181 53](https://reader035.vdocument.in/reader035/viewer/2022071114/5feb5a89283099506e2ac08c/html5/thumbnails/8.jpg)
![Page 9: Long-Term Surface Infiltration Monitoring of Permeable … · 2020. 6. 18. · Location 2 . Location 3 (inches/hr) 18 months Post Construction : 4/11/2012 . 176 227 291 150 181 53](https://reader035.vdocument.in/reader035/viewer/2022071114/5feb5a89283099506e2ac08c/html5/thumbnails/9.jpg)
3/31/10
![Page 10: Long-Term Surface Infiltration Monitoring of Permeable … · 2020. 6. 18. · Location 2 . Location 3 (inches/hr) 18 months Post Construction : 4/11/2012 . 176 227 291 150 181 53](https://reader035.vdocument.in/reader035/viewer/2022071114/5feb5a89283099506e2ac08c/html5/thumbnails/10.jpg)
10% open area No. 8 Stone in Joints > 500 in/hr Surface Infiltration Rate
Let’s Look at another Project Example Before Discussing Surface Infiltration Rate Testing
![Page 11: Long-Term Surface Infiltration Monitoring of Permeable … · 2020. 6. 18. · Location 2 . Location 3 (inches/hr) 18 months Post Construction : 4/11/2012 . 176 227 291 150 181 53](https://reader035.vdocument.in/reader035/viewer/2022071114/5feb5a89283099506e2ac08c/html5/thumbnails/11.jpg)
PICP Case Study Material Supply Yard in Long Island
![Page 12: Long-Term Surface Infiltration Monitoring of Permeable … · 2020. 6. 18. · Location 2 . Location 3 (inches/hr) 18 months Post Construction : 4/11/2012 . 176 227 291 150 181 53](https://reader035.vdocument.in/reader035/viewer/2022071114/5feb5a89283099506e2ac08c/html5/thumbnails/12.jpg)
Before
![Page 13: Long-Term Surface Infiltration Monitoring of Permeable … · 2020. 6. 18. · Location 2 . Location 3 (inches/hr) 18 months Post Construction : 4/11/2012 . 176 227 291 150 181 53](https://reader035.vdocument.in/reader035/viewer/2022071114/5feb5a89283099506e2ac08c/html5/thumbnails/13.jpg)
Starts with Engineering
![Page 14: Long-Term Surface Infiltration Monitoring of Permeable … · 2020. 6. 18. · Location 2 . Location 3 (inches/hr) 18 months Post Construction : 4/11/2012 . 176 227 291 150 181 53](https://reader035.vdocument.in/reader035/viewer/2022071114/5feb5a89283099506e2ac08c/html5/thumbnails/14.jpg)
Subgrade Soil Analysis
Light Brown Coarse to fine sand with few gravel (SP)
![Page 15: Long-Term Surface Infiltration Monitoring of Permeable … · 2020. 6. 18. · Location 2 . Location 3 (inches/hr) 18 months Post Construction : 4/11/2012 . 176 227 291 150 181 53](https://reader035.vdocument.in/reader035/viewer/2022071114/5feb5a89283099506e2ac08c/html5/thumbnails/15.jpg)
•Appendix D NYS Stormwater Design Manual
•12” diameter pipe
• Pre-soak
• Falling head infiltration test
•Average infiltration rate > 100 in/hr.
![Page 16: Long-Term Surface Infiltration Monitoring of Permeable … · 2020. 6. 18. · Location 2 . Location 3 (inches/hr) 18 months Post Construction : 4/11/2012 . 176 227 291 150 181 53](https://reader035.vdocument.in/reader035/viewer/2022071114/5feb5a89283099506e2ac08c/html5/thumbnails/16.jpg)
Design
• Store 100,000 SF for 1.5” storm event=12,500 ft3 • Utilize existing drywells • Install 9,000 SF of PICP in lieu of more drywells • Allow for contributory run-on including roof
drains (~ 11 x’s permeable pavement area) • Installed in 2010
PICP avoided the installation of 22 12’ diam. drywells and provided a useful surface and recharge basin all in one
![Page 17: Long-Term Surface Infiltration Monitoring of Permeable … · 2020. 6. 18. · Location 2 . Location 3 (inches/hr) 18 months Post Construction : 4/11/2012 . 176 227 291 150 181 53](https://reader035.vdocument.in/reader035/viewer/2022071114/5feb5a89283099506e2ac08c/html5/thumbnails/17.jpg)
![Page 18: Long-Term Surface Infiltration Monitoring of Permeable … · 2020. 6. 18. · Location 2 . Location 3 (inches/hr) 18 months Post Construction : 4/11/2012 . 176 227 291 150 181 53](https://reader035.vdocument.in/reader035/viewer/2022071114/5feb5a89283099506e2ac08c/html5/thumbnails/18.jpg)
NO. 9
![Page 19: Long-Term Surface Infiltration Monitoring of Permeable … · 2020. 6. 18. · Location 2 . Location 3 (inches/hr) 18 months Post Construction : 4/11/2012 . 176 227 291 150 181 53](https://reader035.vdocument.in/reader035/viewer/2022071114/5feb5a89283099506e2ac08c/html5/thumbnails/19.jpg)
![Page 20: Long-Term Surface Infiltration Monitoring of Permeable … · 2020. 6. 18. · Location 2 . Location 3 (inches/hr) 18 months Post Construction : 4/11/2012 . 176 227 291 150 181 53](https://reader035.vdocument.in/reader035/viewer/2022071114/5feb5a89283099506e2ac08c/html5/thumbnails/20.jpg)
![Page 21: Long-Term Surface Infiltration Monitoring of Permeable … · 2020. 6. 18. · Location 2 . Location 3 (inches/hr) 18 months Post Construction : 4/11/2012 . 176 227 291 150 181 53](https://reader035.vdocument.in/reader035/viewer/2022071114/5feb5a89283099506e2ac08c/html5/thumbnails/21.jpg)
![Page 22: Long-Term Surface Infiltration Monitoring of Permeable … · 2020. 6. 18. · Location 2 . Location 3 (inches/hr) 18 months Post Construction : 4/11/2012 . 176 227 291 150 181 53](https://reader035.vdocument.in/reader035/viewer/2022071114/5feb5a89283099506e2ac08c/html5/thumbnails/22.jpg)
ASTM No. 9 Stone in Joints
![Page 23: Long-Term Surface Infiltration Monitoring of Permeable … · 2020. 6. 18. · Location 2 . Location 3 (inches/hr) 18 months Post Construction : 4/11/2012 . 176 227 291 150 181 53](https://reader035.vdocument.in/reader035/viewer/2022071114/5feb5a89283099506e2ac08c/html5/thumbnails/23.jpg)
![Page 24: Long-Term Surface Infiltration Monitoring of Permeable … · 2020. 6. 18. · Location 2 . Location 3 (inches/hr) 18 months Post Construction : 4/11/2012 . 176 227 291 150 181 53](https://reader035.vdocument.in/reader035/viewer/2022071114/5feb5a89283099506e2ac08c/html5/thumbnails/24.jpg)
![Page 25: Long-Term Surface Infiltration Monitoring of Permeable … · 2020. 6. 18. · Location 2 . Location 3 (inches/hr) 18 months Post Construction : 4/11/2012 . 176 227 291 150 181 53](https://reader035.vdocument.in/reader035/viewer/2022071114/5feb5a89283099506e2ac08c/html5/thumbnails/25.jpg)
Infiltration is Related to Joint Fill
Approx. Particle Size Permeability (k) in/hr
ASTM No. 8 (2-10 mm) 1,400 – 4,000
ASTM No. 9 (2-5 mm) 140 - 1,400
ASTM No. 10 (1-3 mm) 14 – 140
ASTM C 33 (sand) 1.4 to 14
![Page 26: Long-Term Surface Infiltration Monitoring of Permeable … · 2020. 6. 18. · Location 2 . Location 3 (inches/hr) 18 months Post Construction : 4/11/2012 . 176 227 291 150 181 53](https://reader035.vdocument.in/reader035/viewer/2022071114/5feb5a89283099506e2ac08c/html5/thumbnails/26.jpg)
Visual inspection during/after a rainstorm
Quantify using a test method
How Do We Measure Performance?
![Page 27: Long-Term Surface Infiltration Monitoring of Permeable … · 2020. 6. 18. · Location 2 . Location 3 (inches/hr) 18 months Post Construction : 4/11/2012 . 176 227 291 150 181 53](https://reader035.vdocument.in/reader035/viewer/2022071114/5feb5a89283099506e2ac08c/html5/thumbnails/27.jpg)
Visual Observation
![Page 28: Long-Term Surface Infiltration Monitoring of Permeable … · 2020. 6. 18. · Location 2 . Location 3 (inches/hr) 18 months Post Construction : 4/11/2012 . 176 227 291 150 181 53](https://reader035.vdocument.in/reader035/viewer/2022071114/5feb5a89283099506e2ac08c/html5/thumbnails/28.jpg)
Neoprene pad
300 mm dia. ring
Stone filled buckets
Research Devices
Showerhead
![Page 29: Long-Term Surface Infiltration Monitoring of Permeable … · 2020. 6. 18. · Location 2 . Location 3 (inches/hr) 18 months Post Construction : 4/11/2012 . 176 227 291 150 181 53](https://reader035.vdocument.in/reader035/viewer/2022071114/5feb5a89283099506e2ac08c/html5/thumbnails/29.jpg)
Surface Infiltration Testing
29
ASTM C 1781-13 Standard Test Method for Surface Infiltration Rate of Permeable Unit Pavement Systems
![Page 30: Long-Term Surface Infiltration Monitoring of Permeable … · 2020. 6. 18. · Location 2 . Location 3 (inches/hr) 18 months Post Construction : 4/11/2012 . 176 227 291 150 181 53](https://reader035.vdocument.in/reader035/viewer/2022071114/5feb5a89283099506e2ac08c/html5/thumbnails/30.jpg)
ASTM C 1781 Origins
ASTM C 1701
![Page 31: Long-Term Surface Infiltration Monitoring of Permeable … · 2020. 6. 18. · Location 2 . Location 3 (inches/hr) 18 months Post Construction : 4/11/2012 . 176 227 291 150 181 53](https://reader035.vdocument.in/reader035/viewer/2022071114/5feb5a89283099506e2ac08c/html5/thumbnails/31.jpg)
12” Diameter Ring Constant Head Test
![Page 32: Long-Term Surface Infiltration Monitoring of Permeable … · 2020. 6. 18. · Location 2 . Location 3 (inches/hr) 18 months Post Construction : 4/11/2012 . 176 227 291 150 181 53](https://reader035.vdocument.in/reader035/viewer/2022071114/5feb5a89283099506e2ac08c/html5/thumbnails/32.jpg)
![Page 33: Long-Term Surface Infiltration Monitoring of Permeable … · 2020. 6. 18. · Location 2 . Location 3 (inches/hr) 18 months Post Construction : 4/11/2012 . 176 227 291 150 181 53](https://reader035.vdocument.in/reader035/viewer/2022071114/5feb5a89283099506e2ac08c/html5/thumbnails/33.jpg)
![Page 34: Long-Term Surface Infiltration Monitoring of Permeable … · 2020. 6. 18. · Location 2 . Location 3 (inches/hr) 18 months Post Construction : 4/11/2012 . 176 227 291 150 181 53](https://reader035.vdocument.in/reader035/viewer/2022071114/5feb5a89283099506e2ac08c/html5/thumbnails/34.jpg)
![Page 35: Long-Term Surface Infiltration Monitoring of Permeable … · 2020. 6. 18. · Location 2 . Location 3 (inches/hr) 18 months Post Construction : 4/11/2012 . 176 227 291 150 181 53](https://reader035.vdocument.in/reader035/viewer/2022071114/5feb5a89283099506e2ac08c/html5/thumbnails/35.jpg)
ASTM C1781 Procedures • 12” diameter ring with 0.4 and 0.6” marks • Plumbers Putty – Federal Spec A-A-3110 • 3 locations for up to 25,000 ft2 , one for each
additional 10,000 ft2 • Prewet with 8# of water – if < 30 sec use 40#,
otherwise use 8# • Test within 2 minutes, 2nd pour within 5
minutes of 1st
• Simple calculation: I = K*M/(D2*t)
![Page 36: Long-Term Surface Infiltration Monitoring of Permeable … · 2020. 6. 18. · Location 2 . Location 3 (inches/hr) 18 months Post Construction : 4/11/2012 . 176 227 291 150 181 53](https://reader035.vdocument.in/reader035/viewer/2022071114/5feb5a89283099506e2ac08c/html5/thumbnails/36.jpg)
New Test Method Modifies C 1701 1. Broaden use to includes – clay pavers, concrete
pavers, and grid pavers 2. Recommends a maximum ring height of 6” to avoid
splash effect 3. Clarifies test location selection and adds more
documentation 4. Follows same procedures and calculations as
ASTM C 1701 5. Provides a non-mandatory appendix to normalize
ring drainage area to entire pavement area to improve accuracy
![Page 37: Long-Term Surface Infiltration Monitoring of Permeable … · 2020. 6. 18. · Location 2 . Location 3 (inches/hr) 18 months Post Construction : 4/11/2012 . 176 227 291 150 181 53](https://reader035.vdocument.in/reader035/viewer/2022071114/5feb5a89283099506e2ac08c/html5/thumbnails/37.jpg)
How are we doing at the Library?
• No. 8 Stone in Joints • Little traffic or sediment, no maintenance • First test 20 months post-construction
![Page 38: Long-Term Surface Infiltration Monitoring of Permeable … · 2020. 6. 18. · Location 2 . Location 3 (inches/hr) 18 months Post Construction : 4/11/2012 . 176 227 291 150 181 53](https://reader035.vdocument.in/reader035/viewer/2022071114/5feb5a89283099506e2ac08c/html5/thumbnails/38.jpg)
Library Test Results and graph Location 1 Location 2 Location 3
(inches/hr) 20 months Post Construction 4/4/11 481 492 656
487 422 687 Location Average: 484 457 671
Site Average: 537 44 months Post Construction
4/18/2013 299 196 320 289 186 271
Location Average: 294 191 296 Site Average: 260
48 months Post Construction 8/29/2013 250 185 265
222 169 275 Location Average: 236 177 270
Site Average: 227
![Page 39: Long-Term Surface Infiltration Monitoring of Permeable … · 2020. 6. 18. · Location 2 . Location 3 (inches/hr) 18 months Post Construction : 4/11/2012 . 176 227 291 150 181 53](https://reader035.vdocument.in/reader035/viewer/2022071114/5feb5a89283099506e2ac08c/html5/thumbnails/39.jpg)
80% reduction may be in ~ 6 yrs
60% reduction in 4.1 yrs
10 in/hr design rate
![Page 40: Long-Term Surface Infiltration Monitoring of Permeable … · 2020. 6. 18. · Location 2 . Location 3 (inches/hr) 18 months Post Construction : 4/11/2012 . 176 227 291 150 181 53](https://reader035.vdocument.in/reader035/viewer/2022071114/5feb5a89283099506e2ac08c/html5/thumbnails/40.jpg)
How are we doing at the Supply Yard?
• No. 9 Stone in Joints • Lots of traffic and sediment, no maintenance • Detailed analysis underway
![Page 41: Long-Term Surface Infiltration Monitoring of Permeable … · 2020. 6. 18. · Location 2 . Location 3 (inches/hr) 18 months Post Construction : 4/11/2012 . 176 227 291 150 181 53](https://reader035.vdocument.in/reader035/viewer/2022071114/5feb5a89283099506e2ac08c/html5/thumbnails/41.jpg)
Location #1
Location #2
Location #3
Location of Measurements
![Page 42: Long-Term Surface Infiltration Monitoring of Permeable … · 2020. 6. 18. · Location 2 . Location 3 (inches/hr) 18 months Post Construction : 4/11/2012 . 176 227 291 150 181 53](https://reader035.vdocument.in/reader035/viewer/2022071114/5feb5a89283099506e2ac08c/html5/thumbnails/42.jpg)
Location 1 Location 2 Location 3
(inches/hr) Less than 1 week Post Construction 10/21/2010 206 302 358
183 350 313 Location Average: 195 326 336
Site Average: 285
6 months Post Construction 4/4/2011 321 341 336
340 327 353 Location Average: 331 334 345
Site Average: 336
13 months Post Construction 11/2/2011 250 229 242
244 232 238 Location Average: 247 231 240
Site Average: 239
Year 1 Results
Install Flush, Equilibrium???
Decreasing, But Consistent, No Patterns
![Page 43: Long-Term Surface Infiltration Monitoring of Permeable … · 2020. 6. 18. · Location 2 . Location 3 (inches/hr) 18 months Post Construction : 4/11/2012 . 176 227 291 150 181 53](https://reader035.vdocument.in/reader035/viewer/2022071114/5feb5a89283099506e2ac08c/html5/thumbnails/43.jpg)
Location 1 Location 2 Location 3
(inches/hr) 18 months Post Construction
4/11/2012 176 227 291
150 181 53
Location Avr. 163 204 172 Site Average: 180
30 months Post Construction
4/8/2013 78 98 153
83 94 147
Location Avr. 81 96 150 Site Average: 109
Year 2 Results
Decreasing, Location 3, Outlier
Decreasing, Pattern Develops
![Page 44: Long-Term Surface Infiltration Monitoring of Permeable … · 2020. 6. 18. · Location 2 . Location 3 (inches/hr) 18 months Post Construction : 4/11/2012 . 176 227 291 150 181 53](https://reader035.vdocument.in/reader035/viewer/2022071114/5feb5a89283099506e2ac08c/html5/thumbnails/44.jpg)
Location 1 Location 2 Location 3
35 months Post Construction
8/6/2013 36 113 207
74 110 140
Location Avr. 55 112 174
Site Average: 113
Year 3 Results
Stabilizing, Pattern Clear
(inches/hr)
![Page 45: Long-Term Surface Infiltration Monitoring of Permeable … · 2020. 6. 18. · Location 2 . Location 3 (inches/hr) 18 months Post Construction : 4/11/2012 . 176 227 291 150 181 53](https://reader035.vdocument.in/reader035/viewer/2022071114/5feb5a89283099506e2ac08c/html5/thumbnails/45.jpg)
68% reduction in 3 yrs
Predict 80% reduction in ~ 4 yrs
10 in/hr design rate
![Page 46: Long-Term Surface Infiltration Monitoring of Permeable … · 2020. 6. 18. · Location 2 . Location 3 (inches/hr) 18 months Post Construction : 4/11/2012 . 176 227 291 150 181 53](https://reader035.vdocument.in/reader035/viewer/2022071114/5feb5a89283099506e2ac08c/html5/thumbnails/46.jpg)
The Edge Effect
![Page 47: Long-Term Surface Infiltration Monitoring of Permeable … · 2020. 6. 18. · Location 2 . Location 3 (inches/hr) 18 months Post Construction : 4/11/2012 . 176 227 291 150 181 53](https://reader035.vdocument.in/reader035/viewer/2022071114/5feb5a89283099506e2ac08c/html5/thumbnails/47.jpg)
Results and picture of clogging test 5 in/hr (26 min.)
![Page 48: Long-Term Surface Infiltration Monitoring of Permeable … · 2020. 6. 18. · Location 2 . Location 3 (inches/hr) 18 months Post Construction : 4/11/2012 . 176 227 291 150 181 53](https://reader035.vdocument.in/reader035/viewer/2022071114/5feb5a89283099506e2ac08c/html5/thumbnails/48.jpg)
![Page 49: Long-Term Surface Infiltration Monitoring of Permeable … · 2020. 6. 18. · Location 2 . Location 3 (inches/hr) 18 months Post Construction : 4/11/2012 . 176 227 291 150 181 53](https://reader035.vdocument.in/reader035/viewer/2022071114/5feb5a89283099506e2ac08c/html5/thumbnails/49.jpg)
Gradation of clogged joint
![Page 50: Long-Term Surface Infiltration Monitoring of Permeable … · 2020. 6. 18. · Location 2 . Location 3 (inches/hr) 18 months Post Construction : 4/11/2012 . 176 227 291 150 181 53](https://reader035.vdocument.in/reader035/viewer/2022071114/5feb5a89283099506e2ac08c/html5/thumbnails/50.jpg)
Gradation of Joint Material
SIEVES collected collected
8/2/2010 8/29/2013 US sieve size Diameter, m % finer % finer 3/8" 9.5 100 100 No. 4 4.75 72.25 66.7 No. 8 2.36 15.36 24.7 No. 16 1.18 5.25 19.2 No. 30 0.6 2.67 14.6 No. 50 0.3 1.64 5.8 No. 100 0.15 1.03 2.2 No. 200 0.075 1.01 1.1
![Page 51: Long-Term Surface Infiltration Monitoring of Permeable … · 2020. 6. 18. · Location 2 . Location 3 (inches/hr) 18 months Post Construction : 4/11/2012 . 176 227 291 150 181 53](https://reader035.vdocument.in/reader035/viewer/2022071114/5feb5a89283099506e2ac08c/html5/thumbnails/51.jpg)
Conclusions 1. Fine sediment in permeable pavements will reduce
long-term surface infiltration rates
2. Clogging is common and biased
3. Less clogging potential with # 8 stone vs. # 9 stone
4. ASTM C 1781 is an inexpensive and simple test to
measure surface infiltration on PICP and other forms of
permeable pavement
5. Use ASTM C 1781 for acceptance and corrective action
triggers
Joint Stone Reduction 80%
clogging
# 8 60% in 4 yrs > 6 yrs
# 9 68% in 3 yrs 4 yrs
![Page 52: Long-Term Surface Infiltration Monitoring of Permeable … · 2020. 6. 18. · Location 2 . Location 3 (inches/hr) 18 months Post Construction : 4/11/2012 . 176 227 291 150 181 53](https://reader035.vdocument.in/reader035/viewer/2022071114/5feb5a89283099506e2ac08c/html5/thumbnails/52.jpg)
PICP Industry Recommendations 4th Edition PICP Manual
• Hydrologic design • Structural design • Construction guidelines C1701 acceptance testing Min. 100 in./hr (250 cm/hr) • Maintenance guidelines C1701 performance testing Min. 10 in./hr (25 cm/hr)
![Page 53: Long-Term Surface Infiltration Monitoring of Permeable … · 2020. 6. 18. · Location 2 . Location 3 (inches/hr) 18 months Post Construction : 4/11/2012 . 176 227 291 150 181 53](https://reader035.vdocument.in/reader035/viewer/2022071114/5feb5a89283099506e2ac08c/html5/thumbnails/53.jpg)
![Page 54: Long-Term Surface Infiltration Monitoring of Permeable … · 2020. 6. 18. · Location 2 . Location 3 (inches/hr) 18 months Post Construction : 4/11/2012 . 176 227 291 150 181 53](https://reader035.vdocument.in/reader035/viewer/2022071114/5feb5a89283099506e2ac08c/html5/thumbnails/54.jpg)
For additional information about PICP contact: Kevin Earley 631-774-6431 [email protected]