[Amended 3-13-2001 ATM; 3-9-2003 ATM by Art. 3; 3-11-2003 ATM by Art. 6; 3-9-2004 ATM by Art. 3; 3-8-2005 ATM by Art. 2; 3-13-2007 ATM by Art. 2; 3-8-2011 ATM by Art. 3; 3-13-2012 ATM by Art. 3]
A. 
Title. The title of this district shall be the "Wetlands Conservation Overlay District."
B. 
Authority. This article is adopted under the authority granted pursuant to RSA 674:16, Grant of Power, and RSA 674:21, Innovative Land Use Controls.
The purpose of the Wetlands Conservation Overlay District is to protect the public health, safety and general welfare by promoting the most appropriate use of land and the protection of wetland ecosystems and water quality in accordance with the goals and objectives of the Master Plan.
The wetlands and buffers in the municipality of Wolfeboro are a valuable natural resource requiring careful management to maintain their usefulness to public health, safety and welfare. The municipality of Wolfeboro finds that wetlands and buffers:
A. 
Prevent the destruction of or significant changes to those wetland areas, related water bodies and adjoining land which provide flood protection.
B. 
Protect persons and property against the hazards of flood inundation by ensuring the continuation of the natural flow patterns of streams and other watercourses.
C. 
Provide for nutrient attenuation and augmentation of stream flow during dry periods.
D. 
Preserve and protect important wildlife habitat and maintain ecological balance.
E. 
Prevent the expenditure of municipal funds for the purposes of providing and/or maintaining essential services and utilities which might be required as a result of abuse or inharmonious use of wetlands.
F. 
Protect the wetlands, watercourses, surface and groundwater supplies and waterbodies of the Town/city from degradation.
G. 
Preserve and enhance those aesthetic values associated with the Wetlands Conservation Overlay District.
All proposed development, removal of vegetation, and alteration of the land surface within the Wetlands Conservation Overlay District is subject to this article.
A. 
District defined. The Wetlands Conservation Overlay District is defined as those areas of the Town of Wolfeboro which meet the definition of wetlands, required buffers and setbacks in § 175-10.4 and as defined. In all cases, the precise location of wetland areas shall be determined by the actual character of the land and the distribution of wetland indicators. Such determination shall be made by field inspection and testing conducted by a certified wetlands scientist per NH DES Wetlands Bureau guidelines.
B. 
Prime wetlands.
(1) 
Furthermore, the Town of Wolfeboro, in accordance with RSA 482-A:15, designates the following wetlands as prime wetlands:
(a) 
Batson Pond.
(b) 
Heath Brook Wetlands.
(c) 
Perry Brook.
(d) 
Warren Brook.
(e) 
Ryefield Brook Wetland Complex.
(f) 
Porcupine Brook Wetland Complex.
(g) 
Clow's Brook Wetland Complex.
(h) 
Willey Brook Wetlands Complex.
(i) 
Willey Brook and Youngs Brook Wetlands Complex (Route 28 and Pork Hill Road).
(j) 
Sargent Pond Watershed.
(k) 
Harvey Brook.
(l) 
Hersey Brook Wetlands Complex.
(m) 
Clay Pit Brook Wetlands.
(2) 
Areas designated as prime wetlands are delineated on the file maps in the Wolfeboro Town Hall.
C. 
Wetlands incorrectly delineated.
(1) 
If either the applicant or the Board questions the Wetlands Conservation Overlay District boundaries established under this article and as indicated on the Wetlands District Overlay Map, the applicant shall engage a certified wetlands scientist to conduct a field analysis to determine the precise location of the Wetlands Conservation Overlay District boundaries on the affected properties. The certified wetlands scientist shall submit a report of his/her findings to the Board and the Conservation Commission, including, but not limited to, a revised map of the area in question, a written on-site field inspection report and test boring data if applicable.
(2) 
Upon receipt of the report, the Board, in consultation with the Conservation Commission, shall determine the location of the Wetlands Conservation Overlay District limit on the properties affected. If the Board requires additional review, it may refer the report to a certified wetlands scientist. The certified wetlands scientist shall review the submitted report and make recommendations to the Board and Conservation Commission regarding proposed changes to the Wetlands Conservation Overlay District boundaries as needed. The Conservation Commission shall make the final recommendation of the wetlands limit with consideration of the consultant's report. The Wetlands Conservation Overlay District Map shall be amended to incorporate the results of any such studies. The applicant shall be responsible for any reasonable costs incurred by the Board in connection with this independent review.
D. 
Boundary disputes. When a boundary of the Wetlands Conservation Overlay District is disputed by either the Conservation Commission or an applicant, the Conservation Commission, at the applicant's expense, may engage an independent certified wetlands scientist to determine the location of the Wetlands Conservation Overlay District limit on the properties affected. The delineation shall be consistent with NH DES Wetlands Bureau Rules, as amended. The completion of a New England District Wetland Delineation Datasheet (US Army Corps of Engineers, 2000) by the certified wetlands scientist can provide the appropriate level of documentation to address questions about the delineation. The Conservation Commission shall make the final determination of the wetlands limit based on its consultant's report. The Wetlands Conservation Overlay District Map shall be amended to incorporate the results of any such studies.
A. 
Buffers.
(1) 
The minimum wetlands buffer, which is more restrictive than a setback, shall consist of undisturbed land in accordance with the following requirements. The only exception would be for driveway crossings.
(2) 
Wetlands Buffer: the land area from the edge of delineated wetlands to the buffer line consisting of ungraded and undisturbed land. The wetlands buffer shall consist of ungraded and undisturbed land, and no buildings, structures, or improved land, unless otherwise allowed by this overlay district.
(3) 
Minimum wetland buffers. All dimensions are given in feet.
(a) 
Buffer to prime wetlands: 100 feet.
(b) 
Buffer required for all other wetlands, perennial and intermittent streams, and poorly drained soils: 25 feet.
B. 
Setback.
(1) 
The minimum wetland setback shall be measured from the edge of delineated wetlands to the setback line; see Table of Minimum Wetlands Setback below.
(2) 
Wetlands Setback: the minimum distance from the edge of delineated wetlands to where a structure may be built. This land area, excluding the wetlands buffer, can be graded and improved but shall not contain buildings or structures.
(3) 
Minimum wetland setback. All dimensions are given in feet.
(a) 
Setback to perennial streams(1), Wetlands with very poorly drained soils, bogs and vernal pools: 75 feet. [(1) Within the perennial stream setback, not more than a maximum of 50% of the basal area of trees, and a maximum of 50% of the total number of saplings, shall be removed for any purpose in a twenty-year period. A healthy, well-distributed stand of trees, saplings, shrubs and ground covers and their living, undamaged root systems shall be left in place. Replacement planting with native or naturalized species may be permitted to maintain the fifty-percent level. Access to the perennial stream shall be limited to one six-foot-wide path/access.]
(b) 
Setback to other wetlands, poorly drained soils: 30 feet.
C. 
Buffers and a setback shall not apply if the wetland is one of the following types:
(1) 
A constructed vegetated swale, roadside ditch, or driveway ditch;
(2) 
A sedimentation, detention or retention basin; or
(3) 
An excavated agricultural, irrigation or fire pond.
D. 
Minimum wetland setbacks for certain uses.
(1) 
If the proposed use is one of the following, a special use permit is required pursuant to § 175-10 and the below setbacks shall apply:
(a) 
On-site waste disposal systems for all other uses shall comply with State DES requirements;
(b) 
Parking lots and streets/roads; or
(c) 
Underground chemical and fuel tanks.
(2) 
Setbacks. All dimensions are given in feet.
Setbacks from
Prime Wetlands
Setbacks from Perennial Streams,1 Wetlands with Very Poorly Drained Soils, Bogs and Vernal Pools
Setbacks from Other Wetlands,
Poorly Drained Soils
Uses and Activities
100
N/A
N/A
On-site waste disposal system for all other uses shall comply with state DES requirements.
100
100
50
Parking lots and streets/roads
200
200
200
Underground chemical and fuel tanks
Note 1: Within the perennial stream setback, not more than a maximum of 50% of the basal area of trees, and a maximum of 50% of the total number of saplings, shall be removed for any purpose in a twenty-year period. A healthy, well-distributed stand of trees, saplings, shrubs and ground covers and their living, undamaged root systems shall be left in place. Replacement planting with native or naturalized species may be permitted to maintain the fifty-percent level. Access to the perennial stream shall be limited to one six-foot-wide path/access.
E. 
Repair or replacement of legal preexisting use/structure. Where a legal, preexisting use within the buffer or setback is in need of extensive repair, it may be rebuilt. The new or rebuilt structure shall maintain the same three-dimensional envelope (same building footprint, roof line and square footage) on the parcel. The buffer shall consist of natural vegetation. All construction, forestry and agricultural activities within 100 feet of any wetlands shall be undertaken with special care to avoid erosion and siltation into the wetlands. When deemed necessary, a sediment and erosion control plan may be requested by the Planning Department.
F. 
For uses or activities that involve construction within 25 feet of the edge of a required prime wetlands buffer, the boundary of the buffer shall be marked with orange construction fencing or silt fence as appropriate prior to the commencement of construction activities. Such fencing shall be maintained throughout the construction process.
A. 
The uses listed below are presumed to be consistent with the protection of wetlands functions and values when in accordance with the following and so are allowed in the Wetlands Conservation Overlay District without a special use permit. These uses will not:
(1) 
Require the erection or construction of any structure.
(2) 
Alter the natural surface configuration by recontouring or grading of the land.
(3) 
Involve filling, dredging or draining of the wetlands.
(4) 
Change the flow of water.
(5) 
Result in the pollution of the wetlands, surface water or groundwater.
(6) 
Involve substantial clearing of vegetation, except for the purposes of agriculture or forest management in accordance with current best management practices.
B. 
Permitted uses include:
(1) 
Passive recreation such as hiking, fishing, hunting on foot, nonmotorized boating.
(2) 
Wildlife or fisheries management.
(3) 
Scientific research and educational activities.
(4) 
Agriculture in the wetlands buffer where it does not impair the function and values in the adjacent wetlands, consistent with best management practices published by the NH Department of Agriculture, Markets and Food.
(5) 
Forest management in the wetlands buffer consistent with best management practices published by the NH Department of Resources and Economic Development and UNH Cooperative Extension.
The following uses may not be established or expanded within the Wetlands Conservation Overlay District:
A. 
New structures, except as provided in § 175-10, Special uses.
B. 
Salt storage.
C. 
Automobile junkyards.
D. 
Solid or hazardous waste facilities.
E. 
Use of fertilizer on lawns, except lime or wood ash.
F. 
Bulk storage or handling of chemicals, petroleum products or hazardous materials.
G. 
Sand and gravel excavations.
H. 
Processing of excavated materials.
I. 
Impervious surfaces, unless associated with a use approved as a special use permit.
J. 
Activities which result in soil compaction such as parking vehicles or heavy equipment, unless associated with a use approved as a special use permit.
K. 
Underground tanks.
[Amended 3-14-2017 ATM by Art. 3]
A. 
All activities in the Wetlands Conservation Overlay District not listed in § 175-8, Permitted uses, above are presumed to impair the wetlands functions and values unless proven otherwise by the applicant as provided below.
(1) 
The Planning Board has created a tiered system in an effort to accommodate reasonable use of preexisting nonconforming lots of record (lots created prior to March 2003) while providing protection to the wetlands.
(2) 
To this end, the construction of a single-family dwelling, including additions and replacement dwelling, shall be limited to a maximum allowed footprint of 1,800 square feet within the setback and/or buffer zone on a lot less than three acres and created prior to March 2003 or reconfigured lots, either through boundary line adjustment or lot merger, provided that the lot(s) was originally created prior to March 2003 and the reconfiguration does not increase the nonconformity to the wetlands setback and/or buffer; said dwelling shall be limited to a maximum allowed footprint of 1,800 square feet; and subject to the following:
(a) 
No alternative location outside the wetlands setback or buffer exists for a dwelling with a maximum allowed footprint of 1,800 square feet.
(b) 
No alternative location on the parcel exists which has less detrimental impact on a wetland. Detrimental impact on the wetlands shall include:
[1] 
Increased stormwater runoff into the wetlands.
[2] 
The removal or lessening of the function of filtration strips between the wetlands and the proposed development.
(c) 
In accordance with best management practices, design, construction and maintenance methods will be such as to minimize detrimental impact upon the wetlands. Where a wetlands buffer does not exist or there is intrusion into an existing wetlands buffer, best management practices, such as rain gardens, natural vegetative buffers and filter strips, shall be implemented to mitigate the impact created by the proposed impervious areas.
(3) 
A special use permit application for the development of a single-family home on a lot which requires no State Wetlands Bureau dredge and fill permit for house placement, driveway crossings, site grading and/or septic and well placement shall be processed by the Planning Board in accordance with § 175-184, Minor site plan review.
[Amended 3-13-2018 ATM by Art. 2]
B. 
Lot redevelopment is permitted within the wetlands setback, wetlands buffer and wetlands when no alternative location on the parcel exists which has less detrimental impact on a wetland. Less detrimental impact on the wetlands shall include at least one of the following:
(1) 
Development that is down gradient from the jurisdictional wetlands.
(2) 
Development and/or redevelopment within a previously disturbed area and where the previously disturbed area provides no protection to the wetlands.
C. 
The following uses may be granted a special use permit by the Planning Board, provided that the design is in accordance with best management practices:
(1) 
Streets, utilities and recreational areas. Under the provisions of RSA 674:21, II, the Planning Board may grant approval for the construction of streets, roads and other accessways and utilities, including pipelines, power lines and other transmission lines and recreational areas, provided that all of the following conditions are found to exist:
(a) 
No alternative location outside the wetlands setback or buffer zone or which has less detrimental impact on a wetland is feasible.
(b) 
The proposed construction is essential to the productive use of other land which is not within the Wetlands Conservation Overlay District.
(c) 
Design, construction and maintenance methods will be such as to avoid or minimize detrimental impact upon the wetlands.
(2) 
The undertaking of a use not otherwise permitted in the Wetlands Conservation Overlay District, if it can be shown that such proposed use is in accordance with all of § 175-10C(1)(a), (b), (c) and findings listed in § 175-5.
(3) 
The construction, repair, or maintenance of streets, roads, and other accessways, including driveways, footpaths, bridges, and utility right-of-way easements, including power lines and pipelines, if essential to the productive use of land adjacent to the Wetlands Conservation Overlay District. These uses shall be located and constructed in such a way as to avoid or minimize any detrimental impact upon the wetlands and consistent with state-recommended design standards (see Fish and Game Department 2008), and only if no viable alternative location outside the wetlands setback or buffer zone or which has less detrimental impact on a wetland is feasible.
(4) 
Agricultural activities consistent with best management practices as published by the New Hampshire Department of Agriculture, Markets and Food.
(5) 
Forestry activities consistent with best management practices as published by the New Hampshire Department of Resources and Economic Development and New Hampshire Cooperative Extension. As specified in Logging Operations (Env-Wt 304.05), all skid trails, truck roads and log landings shall be designed using appropriate erosion control devices. Stream and wetlands crossings shall be kept to a minimum in size and number.
(6) 
Water impoundments for the purpose of creating a water body for wildlife, firesafety, or recreational uses. Special use permits may be granted for impoundments for on-site detention of stormwater runoff in buffers only.
(7) 
Disposal of snow and ice in upland buffers collected from roadways and parking areas.
(8) 
Septic systems on nonconforming lots that cannot comply must obtain an approval as stated in § 175-10A (pre-2003 lots).
(9) 
A failed septic system within 75 feet of any very poorly drained soils and 50 feet from poorly drained soils must be replaced on land outside the buffer zone, unless the NHDES and the Code Enforcement Officer make a determination that such placement is not physically possible. A special use permit shall be required to place a new or failed system within the setback zone.
A. 
Application for a special use permit shall be made on forms supplied by the Planning Board and shall include a site plan containing the following information on one or more sheets at a scale of one inch equals 100 feet or larger, and a report demonstrating compliance with the requirements listed below in Subsection B. In accordance with NH state law, the wetlands boundaries shall be delineated by a certified wetlands scientist, the plan shall be prepared by a licensed land surveyor or professional engineer if it contains property boundaries or topography and construction details for building or erosion control/stormwater management or proposed landscaping structures shall be designed by a professional engineer, licensed landscape architect or certified professional in erosion and sediment control.
(1) 
North arrow and date.
(2) 
Property lines.
(3) 
Locus map showing adjacent wetlands and other significant hydrological features.
(4) 
Names and addresses of abutting property owners and holders of conservation restrictions and easements.
(5) 
Wetlands limit and wetlands buffer.
(6) 
Soil types.
(7) 
Vegetation types.
(8) 
Topographic contours at no greater than five-foot intervals.
(9) 
Surface drainage patterns, intermittent and year-round.
(10) 
Existing and proposed development, proposed removal of vegetation and alteration of the land surface.
(11) 
Computation of the area to be impacted, in square feet of surface area in the wetlands and buffer.
(12) 
Stormwater implementation plan (SWIP) proposed during and after construction.
B. 
The Planning Board shall consider all relevant facts and circumstances in making its decision on any application for a special use permit and shall make findings that the project is both consistent with the purpose of this article and minimizes impacts to the wetlands and buffers, including but not limited to the following:
(1) 
The proposed activity minimizes the degradation to, or loss of, wetlands and wetland buffers, and compensates for any adverse impact to the functions and values of wetlands and wetland buffers, including but not limited to the capacity of the wetland to:
(a) 
Support fish and wildlife.
(b) 
Prevent flooding.
(c) 
Supply and protect surface- and groundwaters.
(d) 
Control sediment.
(e) 
Control pollution.
(f) 
Support native wetlands vegetation.
(g) 
Promote public health and safety.
(h) 
Moderate fluctuations in surface water levels.
(2) 
The proposed activity will have no negative environmental impact to abutting or downstream property and/or hydrologically connected water and/or wetlands resources, including:
(a) 
Erosion.
(b) 
Siltation.
(c) 
Turbidity.
(d) 
Loss of fish and wildlife.
(e) 
Loss of unique habitat having demonstrable natural, scientific, or educational value.
(f) 
Loss or decrease of beneficial aquatic organisms and wetlands plants.
(g) 
Dangers of flooding and pollution.
(h) 
Destruction of the economic, aesthetic, recreational and other public and private uses and values of the wetlands to the community.
(3) 
The proposed activity or use cannot practicably be located otherwise on the site to eliminate or reduce the impact to the wetlands or its buffer.
(4) 
The proposed activity utilizes applicable best management practices.
(5) 
Federal and/or state permits have been received for the proposed activity in accordance with N.H. Administrative Rules Env-Wt 100-800 and the Federal Clean Water Act Section 404 Permit.
(6) 
Where applicable, proof of compliance with all other state and/or federal regulations has been received.
(7) 
When a special use permit application proposes work that requires a NH shoreland permit in accordance with the NHCSPA, RSA 483-B, the applicant shall submit a copy of the shoreland permit and approved plan as part of the special use permit application.
C. 
The Planning Board, in acting on an application for a special use permit in the Wetlands Conservation Overlay District, may attach conditions to its approval, including, but not limited to, requirements for more extensive buffers, additional plantings in areas to be revegetated, performance guarantees, and a reduction in proposed impervious surfaces.
D. 
Prior to making a decision, the Planning Board shall afford the Conservation Commission an opportunity to provide comment, and shall consider any such comments provided.
A. 
Applicability. The Wolfeboro Conservation Commission and/or Wolfeboro Planning Board may require wetlands boundaries to be marked in order to prevent encroachment. This section applies to:
(1) 
Any development subject to an application for building permit, special use permit, subdivision or site plan approval;
(2) 
Any development approved before the effective date of this section that is determined to be in violation of any wetlands buffer required that existed at the time the development was approved; or
(3) 
Any activity within a wetlands or wetlands buffer that was undertaken without obtaining a required special use permit.
B. 
Wetlands shall be delineated by a State of New Hampshire certified wetlands scientist. Markers should be placed at fifty-foot +/- intervals along the total wetlands boundary following its general contour.
C. 
Care shall be taken to insure that markers are placed with the appropriate spacing at points closest to any proposed or existing structure located on the property.
D. 
The cost shall be borne by the applicant/developer or their successors in interest.
[Amended 3-14-2017 ATM by Art. 3]
A. 
The Board is hereby authorized and empowered to adopt such rules and require such reasonable fees as are necessary for the efficient administration of this article.
B. 
Upon receipt of any information in writing that this article is being violated, the Code Officer shall notify in writing the owner and tenant of the property on which the violation is alleged to occur, with a copy of such notification to the Board and the Conservation Commission. Where appropriate, the Board and/or the Conservation Commission may notify the New Hampshire Wetlands Board and/or the U.S. Army Corps of Engineers of the violation.
C. 
A civil penalty not to exceed the statutory maximum may be imposed for each day that such violation is found by the court to continue after the conviction date or after the date on which the violator received written notice from the Town that he is in violation, whichever is earlier.
As used in this article, the following terms shall have the meanings indicated:
ADJACENT
Bordering, contiguous, or neighboring. The term includes wetlands that directly connect to other waters of the United States, or that are in reasonable proximity to these waters, but physically separated from them by man-made dikes or barriers, natural river berms, beach dunes, and similar obstructions.
BEST MANAGEMENT PRACTICES
Conservation practices or systems of practices and management measures that control soil loss and reduce water quality degradation caused by nutrients, animal wastes, toxics, and sediment.
BOG
A wetland distinguished by stunted evergreen trees and shrubs, peat deposits, poor drainage, and/or highly acidic soil or water conditions.
BUFFER
The protected upland areas adjacent to wetlands in the Wetlands Conservation Overlay District.
BUILDING FOOTPRINT
The horizontal projection of the roofline, decks and porches at grade, including conditioned and nonconditioned spaces: living area, garages, porches, decks etc.
CERTIFIED WETLANDS SCIENTIST
A person qualified to delineate wetlands boundaries and prepare wetlands maps who is certified by the State of New Hampshire Board of Natural Scientists, as defined by RSA 310-A:76, II-a.
DEVELOPMENT
Any human-made change to improved or unimproved real estate, including but not limited to buildings or other structures, mining, dredging, filling, grading, excavation or drilling activities.
HYDRIC SOILS
Soils that are saturated or flooded during a sufficient portion of the growing season to develop anaerobic conditions in the upper soil layers.
IMPERVIOUS SURFACES
Modified surfaces that cannot effectively absorb and infiltrate water. Examples of impervious surfaces include, but are not limited to, roofs, decks, patios, and paved, gravel, or crushed stone driveways, parking areas, and walkways unless designed to effectively absorb and infiltrate water. Exposed ledge on a property is not considered a modified surface and is not considered when calculating the total impervious area of a lot.
PRIME WETLANDS
Those areas designated prime wetlands in accordance with RSA 482-A:15, and the N.H. Code of Administrative Rules Env-Wt 700.
SPECIAL USE PERMIT
A permit for a special use, subject to compliance with the special use permit standards, that is not otherwise permitted in zoning.
SURFACE WATERS OF THE STATE
Pursuant to RSA 485-A:2, XIV, perennial and seasonal streams, lakes, ponds, and tidal waters within the jurisdiction of the state, including all streams, lakes, or ponds bordering on the state, marshes, watercourses, and other bodies of water, natural or artificial.
VERNAL POOL
A body of water, typically seasonal, that provides essential breeding habitat for certain amphibians and invertebrates, does not support viable fish population, and meets the criteria established by the New Hampshire Fish and Game Department, Nongame and Endangered Wildlife Program, Identification and Documentation of Vernal Pools in New Hampshire, rev 2004.
WETLANDS
Pursuant to RSA 482-A:2, X, an area that is inundated or saturated by surface or groundwater at a frequency and duration sufficient to support, and that under normal conditions does support, a prevalence of vegetation typically adapted for life in saturated soil conditions.
WETLANDS BUFFER
The land area from the edge of delineated wetlands to the buffer line consisting of ungraded and undisturbed land.
WETLANDS SETBACK
The minimum distance from the edge of delineated wetlands to where a structure may be built. This land area, excluding the wetlands buffer, can be graded and improved but shall not contain buildings or structures.