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29-484 Ellington Rd Brookwood Marsh Certificate Complianceo . °NEUJ ENGI(~ND ENVIRONMENTf~I, INC. Environmental Consulting Services September 24, 2001 Northampton Conservation Commission City Hall 210 Main Street Northampton, MA 01060 800 Main Street Amherst, MA 01002 (413) 256-0202 FAX (413) 256-1092 <~ ~.~ a r-----_____.____ (~,~ -~ { ~~,' ~ , t. ~: SEP 2 5 2001 .mil DEPT OF PLANN NORTH_lD~, MA OlOGO RE: Final Monitoring Report for Brookwood Marsh Wetland Restoration, Northampton, MA Request for a Certificate of Compliance NEE file 00-1753. DEP File # 246-462. NHESP file 00-7120. Dear Commission Members: This report summarizes the site conditions found at the Brookwood Marsh wetland Restoration site after the second growing season. We believe that all conditions required in the Order of Conditions issued by the Conservation Commission on May 15, 2000 have been fixlfilled, and we therefore request that a Certificate of Compliance for this work be issued at this time. On behalf of the City of Northampton Office of Planning & Development, New England Environmental, Inc, (NEE) has been conducting construction and maintenance site visits since the beguvung of construction (see Condition #22). Our most recent site visit was conducted on September 19, 2001 and concludes the 2001 growing season inspections, and the second season of plant establishment. Our last report was submitted to the Commission at the beginning of the 2001 (second) growing season. At this time we reported that wetland herbaceous cover was not dense, and that additional seeding was conducted by NEE to supplement the initial seeding. We also reported possible problems with purple loosestrife establishment and control. In this letter we can report to the Commission that the wetland restoration is meeting all standards as described in the Notice of Intent application (March, 2000) and the Order of Conditions. As of this date, I can report to you that the wetland restoration area is very well established after the second growing season. The trees and shrubs are putting out significant new growth, and the herbaceous growth of wetland sedges, rushes and herbaceous species has been phenomenal. The following outlines the status of these areas. Hydrology: The wetland restoration area has demonstrated suitable hydrology to support wetland vegetation. The .grade of the wetland restoration area matches the previously filled wetland grades based on soil excavation during construction. The Monitoring Report for Brookwood Marsh, Northampton September, 2001 Page 1 Scanned ...._- Digitized ~-------~`~~ NEW ENGI(~ND ENVIRONMENTt~I, INC. constructed grades were designed to achieve a wet meadow/shrub scrub/forested wetland and these grades have been achieved. An examination of the soils also shows that there is evidence of hydric characteristics (e.g. oxidized rhizospheres) within the restored wetland. The entire interior of the wetlands is dominated (more than 90%) by wetland vegetation. The periphery of the restoration area where the grades are higher, gradually are dominated by upland herbaceous vegetation. The higher hummock areas were designed to built slightly higher than the groundwater level, and therefore do not show hydric characteristics. Wetland Plants: The wetland trees and shrubs which were planted on the hummocks are all showing excellent growth and establishment. In particular, the Black Willow and Alder are showing significant new growth. Several species have- been browsed by deer, but all are continuing to thrive. One dead shrub was observed. Wetland Seed: The wetland seeding (Wetmix) has shown excellent results after being fully established for one growing season after being reseeded in the Spring of 2001. Several of the species have set seed such as: Carex comosa; C. vulpinoidea; Juncus effusus; and Scirpus atrovirens. Other wetland plants which seed during the second year have become well established such as: Carex crinita; C. lurida; C. lupulina; Glyceria canadensis; Verbena hastata; Scirpus cyperinus; Eupatoriadelphus maculatus and others. Turtle Nesting Sites: Two separate sand banks were created as turtle nesting habitats. NEE has monitored these areas, and although there have been numerous small excavations within the sand banks, we have no firm data to report whether or not these areas have been used by nesting turtles (see Condition # 30). Invasive Species: Brookwood Marsh has a large population of Purple Loosestrife, Lythrum salicaria plants, and it has been our concern that the wetland restoration area would become invaded by this exotic invasive species. I am pleased to report that the dense growth of herbaceous wetland species within the restoration area has effectively eliminated or suppressed purple loosestrife from growth within the restoration area. NEE pulled new seedlings during the 2001 growing season from the restoration area, and removed several large mature plants from edge of the mitigation area. The restoration area below the new beaver dam to the outlet structure has a number of purple loosestrife seedlings which will need to be pulled. This however maybe a Monitoring Report for Brookwood Marsh, Northampton ,September, 2001 Page 2 Scanned pigitized NEU! ENGLAND ENVIRONMENTAL, INC. difficult area to control as there remains a large population of purple loosestrife upstream. It is my recommendation that the City consider a yearly purple loosestrife control maintenance program within Brookwood Marsh. The City should consider a one day/year annual spot application of Rodeo herbicide on purple loosestrife plants within Brookwood Marsh while the mature plants are flowering, but prior to seed set. Beaver Dam: The framework for a beaver dam was constructed in the location of a former dam, and the dam construction has been completed by the beavers. With the permission of the Division of Fisheries and Wildlife and the Northampton Board of Health, the old beaver dam was removed. The beaver exclusion devices (Clemson Levelers) and three outlet pipes have been installed through the new dam by the City's beaver specialist. The inlet elevation of the levelers is the same as the previous inlet. The outlet is a drop inlet at the end of Ellington Road. This system appears to be working as designed. The water level within the marsh has not changed, and the flooding of the nearby residences has been significantly reduced. Rare Species: The rare Spatterdock Darner (Aeshna mutata) was historically found in this pond, an assessment of the dragonflies on the site was completed by NEE during the 2001 growing season. A number of dragonflies and damselflies were noted on site. Both Common Whitetails (Plathemis lydia) and Twelve-spotted Skimmers (Libellula pulchella) were abundant. A few Spangled Skimmers (Libellula cyanea) were also noted, including one female laying eggs in the water. One damselfly species of Bluet (Enallagma sp.) was also noted. No species of Darners (Aeshna sp.) were noted by NEE during these site visits. Additional Yellow Water Lily (Nuphar lutea) were planted within the pond adjacent to the wetland restoration area to expand potential habitat for this species of Darner. These plants have now become established and have shown significant new growth during the 2001 growing season. Certificate of Compliance: Condition # 34 requires that upon completion of the project that "the applicant shall submit a certification that all work has been done in conformance with the provisions of the Order of Conditions and request a Certificate of Compliance". On behalf of the City of Northampton Office of Planning and Development, please consider this report, accompanying photographs, and Request Form as our Monitoring Report for Brookwood Marsh, Northampton Septe ber, 200 Page 3 ~`~ann;~ t_ _----- D;i,g;itized~ ______ Gheckec~{ __________ NEVI ENGI~Nn ENVIRONMENTAL, INC. certification of compliance with the Order of Conditions for DEP file 246-462. In summary, we are satisfied with the results of the wetland restoration work at Brookwood Marsh, and at this time no other remedial work is necessary. Over one acre of filled wetland has been restored and planted with native wetland vegetation. We have observed that this restored wetland is already being used by the local wildlife, and will hopefully be used by the threatened wildlife species found in the marsh. Sincerely, Ne England Environmental, Inc. 1 J. Marcus Scientist cc: DEP, Western Regional Office Pat Huckery, Natural Heritage and Endangered Species Program Steve Block, Restoration and Banking Program Cynthia Williams, Northampton Planning and Development enc. Photographs Request for a Certificate of Compliance F:~SHARED\Let00\1753finalmonitoringreport.wpd ~eanned Digitized Checked Monitoring Report for Brookwood Marsh, Northampton September, 2001 Page 4 EXISTING CONDITIONS BROOKWOOD MARSH, NORTHAMPTON, MA WETLAND RESTORATION AREA SEPTEMBER 19, 2001 The plaiting of Yellow Water Lily (NuphaN lutea) was conducted along the pond edges to promote the preferred habitat of a rare species of dragonfly. F'~SI I~ED~I,et00\NEE 1753 finalphotos.wpd The transition between the existing pond at Brookwood Marsh (left) and the restoration area (right) was very smooth and did not result in the alteration of any of the pond area. Established Wetland Restoration area at Brookwood Marsh. Note the dense establishment of herbaceous wetland vegetation. The circular clumps in the back- round are raised hummocks planted with wetland trees and shrubs. Pre- construction site conditions (1999) Important: When filling out forms on the computer, use only the tab key to move your cursor - do not use the return key. tab reran Massachusetts Department of Environmental Protection Bureau of Resource Protection -Wetlands WPA Form 8A -Request for Certificate of Compliance Massachusetts Wetlands Protection Act M.G.L. c. 131, §40 DEP File Number: 246-462 Provided by DEP A. Project Information This request is being made by: New England Environmental, Inc. Name 800 Main Street Mailing Address Amherst MA 01002 City/Town State Zip Code (413) 256-0202 Phone Number 2. This request is in reference to work regulated by a final Order of Conditions issued to: City of Northampton, Office of Planning & Development Applicant Dated 8, 2000 Upon completion of the work 3• authorized in an Order of Conditions, the property owner must request a Certificate of 4 Compliance from the issuing authority stating that the work or portion of the work has been satisfactorily completed. ® the work regulated by the above-referenced Order of Conditions has been satisfactorilycompleted. ^ the following portions of the work regulated by the above-referenced Order of Conditions have been satisfactorily completed (use additional paper if necessary). Digitized Checked ^ the above-referenced Order of Conditions has lapsed and is therefore no longer valid, and the work regulated by it was never started. .YI wpaforrn8a.doc • rev. 9/24/01 The project site is located at: 246-462 DEP File Number Brookwood Marsh at the end of Ellington Road Northampton Street Address City/Town #29 484 Assessors Map/Plat Number Parcel/Lot Number The final Order of Conditions was recorded at the Registry of Deeds for: City of Northampton Property Owner (if different) Hampshire County Book Page Certificate (if registered land) 5. This request is for certification that (check one): Page 1 of 2 ~~ ~. Massachusetts Department of Environmental Protection DEP File Number: Bureau of Resource Protection -Wetlands WPA Form 8A -Request for Certificate of Compliance 246-462 Massachusetts Wetlands Protection Act M.G.L. c. 131, §40 Provided by DEP A. Project Information (cont.) 6. Did the Order of Conditions for this project, or the portion of the project subject to this request, contain an approval of any plans stamped by a registered professional engineer, architect, landscape architect, or land surveyor? ^ Yes If yes, attach a written statement by such a professional certifying substantial compliance with the plans and describing what deviation, if any, exists from the plans approved in the Order. ® No B. Submittal Requirements Requests for Certificates of Compliance should be directed to the issuing authority that issued the final Order of Conditions (OOC). If the project received an OOC from the Conservation Commission, submit this request to that Commission. If the project was issued a Superseding Order of Conditions or was the subject of an Adjudicatory Hearing Final Decision, submit this request to the appropriate DEP Regional Office (see Appendix A). Scanned Digifiized checked wpaform8a.doc • rev. 9/24/01 Page 2 of 2