A. 
The SWM site plan shall consist of a narrative and all applicable calculations, maps, plans and supplemental information necessary to demonstrate compliance with this chapter.
B. 
All landowners of land included in the SWM site plan shall be required to execute all applications and final documents.
C. 
All SWM site plans and design calculations shall be signed and sealed by the qualified person responsible for the design.
D. 
Where the regulated activity constitutes subdivision or land development as hereinabove defined, the SWM site plan shall be submitted with and form an integral part of the plans required under Chapter 265, Subdivision and Land Development.
A. 
Drafting standards.
(1) 
The plan should be clearly and legibly drawn.
(2) 
If the plan is prepared in two or more drawing sheets, a key map showing the location of the sheets and a match line shall be placed on each sheet.
(3) 
Each sheet shall be numbered to show the relationship to the total number of sheets in the plan (e.g., Sheet 1 of 5).
(4) 
Drawings or maps of the project area shall be drawn at one inch equals 50 feet or larger scale (i.e., one inch equals 40 feet, one inch equals 30 feet, etc.) and shall be submitted on twenty-four-inch by thirty-six-inch sheets.
(5) 
SWM site plans shall be prepared in a form that meets the requirements for recording for the Office of the Recorder of Deeds of Lancaster County.
(6) 
The total development site boundary and size with distances marked to the nearest foot and bearings to the nearest degree.
(7) 
The proposed name or identifying title of the plan.
(8) 
The plan sheets or sheet index shall clearly indicate which sheets are to be recorded as part of the project.
B. 
SWM site plan information. The following items shall be included in the SWM site plan:
(1) 
The date of the SWM site plan and latest revision, graphic scale, written scale and North arrow.
(2) 
The name of the development, the name and address of the owner of the property, and the name of the individual or firm preparing the plan.
(3) 
The file or project number assigned by the firm that prepared the plan.
(4) 
A statement, signed by the landowner, acknowledging the SWM facilities to be permanent fixtures that cannot be altered or removed unless a revised plan is approved by the Borough. The stormwater facility permanence statement shall be included on a plan sheet intended for recording.
(5) 
For SWM facilities located off site:
(a) 
A note on the plan referencing a recorded stormwater operation and maintenance (O&M) agreement that indicates the location and responsibility for maintenance of the off-site facilities.
(b) 
All off-site SWM facilities shall meet the performance standards specified in this chapter.
(6) 
A note informing the owner that the Borough shall have the right of entry for the purposes of inspecting all stormwater conveyance, treatment or storage facilities.
(7) 
The Borough of Adamstown SWM site plan approval certification (Appendix A-6[1]) shall be included on the plan.
[1]
Editor's Note: The Appendixes to the Stormwater Management Ordinance are on file in the Borough offices.
(8) 
A location map, drawn to a scale of a minimum of one inch equals 2,000 feet, relating the plan to municipal boundaries, at least two intersections of road center line or other identifiable landmarks.
(9) 
A note on the plan indicating any area that is not to be offered for dedication along with the statement that the Borough is not responsible for maintenance of any area not dedicated to and accepted for public use, and that no alteration to swales, basins or placement of structures shall be permitted within easements.
(10) 
Certificate, signed and sealed by a qualified professional registered in the Commonwealth of Pennsylvania and qualified to perform such duties. See form of certificate in Appendix A-6.[2]
[2]
Editor's Note: The Appendixes to the Stormwater Management Ordinance are on file in the Borough offices.
(11) 
The names of all owners of all immediately adjacent lands, including those properties located across street rights-of-way.
(12) 
Existing features.
(a) 
In areas of disturbance, contours at intervals of one or two feet. In areas of steep slopes (greater than 15%) and areas undisturbed, five-foot contour intervals may be used.
(b) 
The locations of all existing utilities (including on-lot disposal systems and wells), sanitary sewers, and waterlines and associated easements within 200 feet of the development site boundary.
(c) 
Physical features, including flood hazard boundaries, wetlands, sinkholes, streams, lakes, ponds and other water bodies, existing drainagecourses, karst features, areas of native vegetation including trees greater than six-inch diameter at breast height, woodlands, other environmentally sensitive areas and the total extent of the upstream area draining through the development site within 200 feet of the development site boundary.
(d) 
An overlay showing soil names and boundaries.
(e) 
All existing man-made features within 200 feet of the development site boundary.
(13) 
Proposed features.
(a) 
Changes to the land surface and vegetative cover, including final proposed contours at intervals of one or two feet in areas of disturbance. In areas of steep slopes (greater than 15%) and areas undisturbed, five-foot contour intervals may be used.
(b) 
Proposed structures, roads, paved areas, buildings and other impervious and semi-impervious areas.
(c) 
The location of any proposed on-lot disposal systems, replacement drain-field easements, and water supply wells.
(d) 
A note indicating existing and proposed land use(s).
(e) 
Plan and profile drawings of all proposed SWM facilities, including BMPs, drainage structures, pipes, open channels and swales. This information shall be of the quality required for construction of all facilities.
(f) 
Where pervious pavement is to be installed, pavement material and construction specifications shall be included.
(g) 
The location of all existing and proposed easements, including drainage easements, access easements and riparian corridor easements.
(h) 
A planting plan shall be provided for all vegetated BMPs in accordance with § 251-13N.
(14) 
The location of all E&S control facilities and the sequence of construction.
(15) 
The plan shall include a note identifying the number of square feet of impervious coverage for which the stormwater management facilities have been designed to accommodate.
C. 
Additional information.
(1) 
General description of the development site, including a description of existing natural and hydrologic features and any environmentally sensitive areas.
(2) 
General description of the overall SWM concept for the project, including a description of permanent SWM techniques, nonstructural BMPs to be employed and construction specifications of the materials to be used for structural SWM facilities. The narrative shall include a description of any treatment trains and how the facilities are meant to function with each other to manage stormwater runoff.
(3) 
The effect of the project (in terms of runoff volumes, water quality and peak flows) on adjacent properties and on any existing municipal stormwater management facilities that may receive runoff from the development site.
(4) 
Complete hydrologic, hydraulic and structural computations for all SWM facilities.
(5) 
Expected project time schedule.
A. 
In areas of carbonate geology, a detailed geologic evaluation prepared by a registered professional geologist (PG) must be submitted as part of the SWM site plan. The report shall include, but not be limited to, the following:
(1) 
The location of the following karst features:
(a) 
Sinkholes.
(b) 
Closed depressions.
(c) 
Lineaments in carbonate areas.
(d) 
Fracture traces.
(e) 
Caverns.
(f) 
Intermittent lakes.
(g) 
Ephemeral disappearing streams.
(h) 
Bedrock pinnacles (surface or subsurface).
(2) 
A plan for remediation of any identified karst features.
(3) 
Impacts of stormwater management facilities on adjacent karst features, and impacts of karst features on adjacent stormwater management facilities.
B. 
An E&S Plan, including all approvals, as required by 25 Pa. Code Chapter 102, shall be provided to the Borough prior to unconditional final plan approval.
C. 
For any activities that require a DEP joint permit application and are regulated under 25 Pa. Code Chapter 105 or Chapter 106, require a PennDOT highway occupancy permit, or require any other permit under applicable state or federal regulations, the permit(s) shall be part of the SWM site plan and must be obtained prior to unconditional final plan approval.
D. 
An operation and maintenance (O&M) plan that addresses the requirements of § 251-39.
E. 
A declaration of adequacy/highway occupancy permit from PennDOT when PennDOT SWM facilities are proposed to be utilized.
F. 
An analysis of the effect of the project (in terms of runoff volumes and peak flows) on adjacent properties and on any existing municipal stormwater collection systems that may receive runoff from the development site.
G. 
For SWM facilities that would be located off site, a note on the SWM site plan referencing a recorded stormwater maintenance agreement which indicates the location and responsibility for maintenance of the off-site SWM facilities. All off-site SWM facilities shall meet the performance standards and design criteria specified in this chapter.
H. 
If wetlands are located on site, a wetlands impact report by a qualified professional shall be provided to the Borough verifying the limits of any wetlands located within the site or project boundary. Orange construction fence or an approved equivalent shall be posted around any wetlands areas determined by a wetlands impact report found on site during construction. Major stormwater projects shall provide a wetland investigation study/report to the Borough as part of the application.
[Amended 8-6-2019 by Ord. No. 397]