O14 Princeton Hydro PowerPoint Widescreen Template

Surface Drainage Western wetlands drain 32 acres. It will be reduced by 9 acres, or 28% of the total existing drainage area. Eastern wetlands drain 48.4 acres. It will be reduced by 16 acres, or 33% of the total existing drainage area.

Sy i

Groundwater Flow Path Impacts In general, the groundwater component of wetland hydrology follows site topography. Wetland hydrology is expressed when groundwater either discharges to the ground surface or is within 1 foot of the soil surface for 1 week during the growing season. Groundwater elevations and flow paths tend to follow restrictive layers such as fragipans or bedrock. Based on the USDA Soil Survey the three main soils types on site, Boonton, Haledon and Hasbrouck all have a fragipan that perches water. This is especially important early in the growing season.

16.5 foot change in elevation Basin Bottom 532 540 540 532 Snapshot from ACS plan sheet SP-42 of Basin 7 Infiltration Basin

VLULIVTT 0+00 1400 2400 3400 ot ail raya spore 54 ‘ 10 YEAR DeSIGN FLD 40 a a rmsweanee | | aves ss psue m a oO = < JPROPOSED Grape! — + gq : L o i a 53 H t = 30 © RAND LAER et ESHWT 528] / i ates 520 Se 520 0-H00 SHWE 522 2 H 3400 545.69 20 1+00 2+00 or SCIENCE ENGINEERING _~ DESIGN BASIN #7 - WARNER ROAD

ESHWT Elevations Vs. Elevations of Adjacent Wetland ESHWT 15 feet lower than the adjacent wetland? 534

Basin 2 Basin Bottom 544 Snapshot from ACS plan sheet SP-55 of Basin 7

ELEVATPON: 543.03 ELEWATION: 544.05 m1 (NAVD1988) (NAVDIS988) io DE — : ated @ ~ 1 < ™ Pa) 55 IL — 48 50 ct i H ~ ELEVATION: 543.33 roy Wi ~. (NAVD1988) \OPOSED GRADE = Tt =) Wy H — Wy 1 f rh Hl H 1 H ™ 15" THRC ! ! 1 le I 10.in/hr MAX H I > e il I |. ELEV: SSO.) ll rT] I 540 ase 1 40 nev: ssad | 0.37 IN/ER @ 543.0 H 1 | 542.09 6 ll H INF-0.27 IMPHR @ 544.0 EX. ELEY: $48.0 il 1 \| Tet ESHwT! $40.00 H th_4-\l_ ex tuzv:lsas.0 INF: 79 IN/HR ® 542.0 Ht uy | SRW S370 Treo | | tne: 2.22 paren @ S340 ex uev:547.0| | s\y :538.0 . ELEW: S40 oy 5 Bd Boe: 53 ——— 35 ~ ESN 0-400 1+|00 1+180

Questions ? THANK YOU Mark Gallagher Princeton Hydro Trenton, NJ mgallagher@princetonhydro.com