Upload
dangkhuong
View
221
Download
0
Embed Size (px)
Citation preview
Tennessee Gas Pipeline
Tennessee Gas Pipeline Company300 Line ProjectfNo Net Loss Reforestation Plan
Project OverviewProject OverviewPROJECT FACILITIES
Pipeline FacilitiesEight loop segments of 30-inch diameter pipeline in Pennsylvania (111 miles) andpipeline in Pennsylvania (111 miles) and New Jersey (16 miles)
Aboveground FacilitiesAboveground FacilitiesTwo new compressor stations (PA) and modifications to existing stations (PA & NJ)g ( )Mainline valves and internal inspection tool launcher & receiver facilities
2
300 Line Project j
NYNH
VT•In– Service Date: November 1, 2011•Incremental Volume: 350,000 Dth/d127 miles (16 miles in NJ 111 miles in PA)
CT RI
MATGP
•127 miles (16 miles in NJ, 111 miles in PA)•55,000 additional Hp; 34,000 Hp replacement
325
219
313
Rivervale, NJ (into Transco)310
303
315 317 321319 323
White Plains, NY (into ConEd)
PA
OH
MD
NJ
209
Mahwah, NJ (into AGT)
303
Existing StationExisting StationNew StationModified StationLoop SectionDelivery Meter
3KY
WV VA
TGPEQT’s Big Sandy
NJ State Lands Crossed - SummaryNJ State Lands Crossed Summary
State Land Township County
Hamburg Mountain Wildlife Management Area
Vernon Sussex
Wawayanda State Park
West Milford Passaic
Bearfort Mountain Natural Area
Long Pond Ironworks State Park
5
Hamburg Mountain Wildlife Mgmt AreaHamburg Mountain Wildlife Mgmt AreaForested Impacts: 8.6-ac temporary workspace / additional temporary workspace (TWS/ATWS); 1.1-ac new right-of-way (ROW)
7
Wawayanda State Park / Bearfort Mountain Natural Area
Wawayanda SP - Forested Impacts: 16.1-ac TWS/ATWS; 4.1-ac new ROW
BMNA - Forested Impacts: 5.8-ac TWS/ATWS; 1.5-ac new ROW
8
Long Pond Ironworks State ParkLong Pond Ironworks State ParkForested Impacts: 5.9-ac TWS/ATWS; 2.1-ac new ROW
9
No Net Loss Reforestation Act (N J S A 13:1L-14 1 et seq )(N.J.S.A. 13:1L 14.1 et seq.)
Reforestation Plan (dated June 2010) prepared inReforestation Plan (dated June 2010) prepared in conjunction with and based upon input, guidance and direction from NJ DEP Division of Parks and Forestry Staff and NJ Forest Service No Net Loss
f Gy
Reforestation Program Guidelines (January 2002; rev. September 2007)
Replanting of TWS/ATWS areasOff Sit R t ti & M t C ti fOff-Site Restoration & Monetary Compensation for new permanent easement impacts
Specialized Methods for:Palustrine Forested WetlandsUpland Forest Seed MixesAreas with Moderate-Poor Suitability for Planting
10
y gEastern Hemlock / Oak Community Restoration
Deforestation PlanDeforestation Plan
Deforestation to be limited to approved workspaceDeforestation to be limited to approved workspace areasStumps will be left in place within wetlands except over trench lineover trench lineDeforestation activities will be conducted in compliance with mandatory Indiana bat (Myotis sodalis) and Migratory Bird Treaty Act (MBTA)sodalis) and Migratory Bird Treaty Act (MBTA) timing restrictions for tree clearingTennessee’s Environmental Construction Plan (ECP) best management practices will be followed(ECP) best management practices will be followed during clearing activities, including:
Implementation of erosion and sediment control measuresMeasures to prevent spread of invasive plants (track/wheel
11
Measures to prevent spread of invasive plants (track/wheel and equipment mat washing)
300 Line Reforestation Plan Details300 Line Reforestation Plan DetailsWetland Mitigation Plan will be implemented for forested wetland impacts under Flood Hazard Areaforested wetland impacts under Flood Hazard Area Control Act (N.J.S.A. 58:16A-50 et seq.) and Freshwater Wetlands Protection Act (N.J.S.A. 13:9B-1 et seq.)
Tree species replanting matrices developed for p p g pwetlands and open water buffer zonesSpecialized seed mixes for restoration in wetlands, riparian zones, and open water buffer zones
Forested Land Assessment and Forested Community Type Assessment to determine acreage impacts
36.3-ac total ATWS/TWS to be reforested8.8-ac total new easement for off-site restoration or monetary compensation as directed by DEPCommunity types identified by milepost from on-the-
12
y yp y pground surveys of vegetation composition
300 Line Reforestation Plan Details300 Line Reforestation Plan DetailsForested Land Assessment
0.5-ac grid system assessing % cover of forested area
13
300 Line Reforestation Plan Details300 Line Reforestation Plan DetailsForested Land Assessment
0.5-ac grid system assessing % cover of forested area
14
300 Line Reforestation Plan Details300 Line Reforestation Plan Details
NO NET LOSS REFORESTATION PLAN SUMMARY300 LINE PROJECT – LOOP 325
State-owned PropertyTotal Acres Established
Forest Impactsa
Total Acres Reforested Subject
to NNL
Total Acres Reforested notSubject to NNL
Established Forest within New
Perm ROW Not Reforestedb
Hamburg MountainWildlife Mgmt Area
9.74 8.61 2.81 1.13
Wawayanda State Park 20.17 16.10 4.26 4.07
Bearfort Mountain Natural Area
7.18 5.68 1.83 1.50
Long Pond Ironworks State Park
8.06 5.94 1.42 2.12State Park
TOTAL 45.15 36.33 10.32 8.82a: Includes only the acres of established forest removed within the 33% half acres grids.b: Impacts to established forest not reforested to be mitigated through off-site restoration projects and/or monetary compensation option as directed by DEP.
15
300 Line Reforestation Plan Details300 Line Reforestation Plan DetailsForested upland restoration methods
Temporary and permanent erosion control measuresTemporary and permanent erosion control measuresLimit mature tree cutting and stump removal where practicableRestore pre construction contours & gradesRestore pre-construction contours & gradesSpecialized wildlife forage seed mixesLime, fertilizer, seed & mulch in consultation with DEP
Forest species replanting matrices by community typeSpecifically developed based upon existing community composition present in area
Replanting method and individual sizes vary by site limitations
2-3” Caliper balled & burlapped (B&B)
16
p pp ( )Whip-sized individualsSeedlings
300 Line Reforestation Plan Details300 Line Reforestation Plan DetailsHemlock / Oak Community Special Considerations
Hemlock seedlings will be harvested from constructionHemlock seedlings will be harvested from construction workspace prior to initial land-clearing operations and will be maintained by a qualified nursery during construction to ensure ample supply of reforestation
dliseedlingsTopsoil segregation during construction for restoration topdressing will preserve available seedbank to supplement planting with natural revegetationsupplement planting with natural revegetation
17
2-3” Caliper balled & burlapped (B&B) IndividualsIndividuals
204 individuals/acre (statutory density for established forest) where accessibility and soil conditions allowforest) where accessibility and soil conditions allowRuggedness of landscape and linear distance of project limits planting of B&B specimens to areas adjacent to roadwaysadjacent to roadwaysAllows for faster re-establishment of forest within areas frequented by publicLimiting factors include: shallow depth to bedrockLimiting factors include: shallow depth to bedrock, very or extremely stony soils, steep slopes, and accessibility for trucks and heavy equipmentProximity to access roads is key for supplementalProximity to access roads is key for supplemental watering needs
18
Whip-sized individuals (2’-3’ tall & containerized)containerized)
1,210 individuals/acre to reach statutory tree replacement factor stem count of 408 (standard forreplacement factor stem count of 408 (standard for emerging forest) while accounting for deadlossMore appropriate to rugged landscape and linear distance of projectdistance of projectAllows for faster re-establishment of forested cover while accommodating landscape and limitationsSteep slopes very or extremely stony soils andSteep slopes, very or extremely stony soils, and accessibility for trucks and equipment are less limiting factors when planting whip-sized specimens
All-terrain vehicles can be utilized to facilitate haulingAll terrain vehicles can be utilized to facilitate hauling & staging activities, with planting completed via foot traffic and simple hand tools
Limiting factors include: extreme shallow depth to
19
Limiting factors include: extreme shallow depth to bedrock and presence of extremely stony soils
Seedlings (1’-2’ tall bare root stock)Seedlings (1 2 tall bare root stock)1,210 individuals/acre statutory planting density using tree replacement factor identified in guidelinesMore appropriate to extremely rugged landscapesMore appropriate to extremely rugged landscapes and long distances from available equipment access pointsAllows for faster re establishment of forested coverAllows for faster re-establishment of forested cover over natural successional processes while accommodating landscape and limitationsAppropriate for areas where extreme shallow depth toAppropriate for areas where extreme shallow depth to bedrock, steep slopes, very or extremely stony soils, and accessibility for trucks and equipment are limiting factors
All-terrain vehicles can be utilized to facilitate hauling & planting activities with planting completed via foot traffic and simple hand tools.
20
Likely implemented in conjunction with specialized seed mix containing tree species seeds
Tree Maintenance Schedule and ActivitiesActivities
Conducted for minimum of 3 growing seasons Minimum of 4 inspections per season (April MayMinimum of 4 inspections per season (April, May, June, November)Supplemental watering weekly when seasonal rainfall insufficient to maintain proper soil moisturerainfall insufficient to maintain proper soil moisture content for tree establishment Use of water polymer to minimize need for wateringM l h i t 36” di t & 3” thi k h ll bMulch ring to 36” diameter & 3” thickness shall be maintained for all B&B specimens throughout 3 year maintenance periodT ll i d h ll b t ll d i fTall growing weeds shall be controlled in areas of whip or seedling plantings to prevent adverse competitionAll B&B i h ll b t d b t k d
21
All B&B specimens shall be supported by stakes and guy wires for one maintenance year
Tree Maintenance Schedule and Activities (Cont.)Activities (Cont.)
All B&B specimens will be maintained in a plum position for the maintenance periodposition for the maintenance periodAll B&B specimens will be monitored for insects and disease and will be diagnosed and treated on a case by case basisby case basisIn areas with signs of heavy deer browse damage to vegetation, measures will be taken to protect newly planted trees as necessary, including fencing, bud p y, g g,caps during dormant season, repellents, and ultimately replanting with deer-resistant species if necessarySlow release fertilizer will be applied to B&B specimens at end of first growing season to trees within uplands only (not in wetlands)
22
Pruning as necessary to remove damaged, dead, or infested branches
Survivorship Monitoring and Success RatesRates
Annual monitoring of survivorship and calculation of success rates will occur in all reforested areas for asuccess rates will occur in all reforested areas for a minimum of 3 years following completion of replanting activitiesQuantitative sampling will determine the type andQuantitative sampling will determine the type and quantity of woody species colonizing the construction ROW, including planted and volunteer speciesResults will be compared to pre-determined p pthreshold success criteria (80% survival for seedlings, 90% survival for whips, 95% survival for B&B individuals)Restoration shall be considered successful if upon visual survey the density and cover of non-nuisance vegetation are similar in density and cover to adjacent undisturbed land
23
adjacent undisturbed land
Survivorship Monitoring and Success Rates (Cont.)Rates (Cont.)
Annual monitoring reports shall be submitted to the NJ DEP Division of Parks and Forestry at the end ofNJ DEP Division of Parks and Forestry at the end of each growing seasonIf actual field stem counts fall short of the pre-determined threshold values, Tennessee will developdetermined threshold values, Tennessee will develop supplemental plans in conjunction with the appropriate state and federal agenciesAreas that do not meet the minimum survival rate percentage shall have all unhealthy stock replaced within 120 days of receiving notification from the NJ Forest Service. Inspections and replacement plantings shall continue with the same time frames until the minimum survival rate is achieved.
24
New ROW ImpactsNew ROW ImpactsNew ROW cannot be reforested for safety reasons as well as operations & maintenance purposes (8.82-acwell as operations & maintenance purposes (8.82 ac impact to forest for new ROW)Mitigation for permanent deforestation includes:
On site Reforestation of 0 5 ac grids with <33% forestOn-site Reforestation of 0.5-ac grids with <33% forest cover (i.e. non-forested areas under NNL Regulations)Off-site Restoration ProjectsMonetary Compensation OptionMonetary Compensation Option
On-site Reforestation of 0.5-ac grids with <33% forest cover
U i th 0 5 id t t h i i dUsing the 0.5-ac grid assessment technique required by the NNL rules, approx.10.32-ac of the project workspace within non-forested areasReforestation of this 10 32-ac will provide additional
25
Reforestation of this 10.32-ac will provide additional mitigation for 8.82-ac of impact to forest for new ROW
New ROW Impacts (Cont.)New ROW Impacts (Cont.)Off-Site Restoration Projects subject to availability and recommendation by NJ DEP Division of Parksand recommendation by NJ DEP Division of Parks and Forestry / Fisheries & Wildlife
Tennessee to work with Division to identify and conduct suitable off-site restoration projectsp j
Monetary Compensation Option 204 trees/acre x $300/tree = $61,200 per acre compensation ratecompensation rate
26