[Ord. 334 (92-1), 2/5/1992, § 401]
For any of the regulated activities of this Chapter, prior to the final approval of subdivision and/or land development plans, or the issuance of any permit, or the commencement of any land disturbance activity, the owner, subdivider, developer or his agent shall submit a stormwater management plan for approval.
[Ord. 334 (92-1), 2/5/1992, § 402]
1. 
The plan shall be prepared by a professional engineer.
2. 
The engineer shall certify that the plan meets the minimum design requirements of this Chapter and shall include the following:
A. 
General.
(1) 
General description of project.
(2) 
General description of proposed permanent stormwater controls.
B. 
Map(s) of the project area showing:
(1) 
The location of the project relative to highways, municipalities or other identifiable landmarks.
(2) 
Existing contours at intervals of two feet. In areas of steep slopes (greater than 15%), five-foot contour intervals may be used.
(3) 
Drainage area boundaries for all areas, on and offsite, that drain to and/or through the site.
(4) 
Streams, lakes, ponds or other bodies of water within or near the project.
(5) 
Other physical features including existing drainage swales and areas of natural vegetation to be preserved.
(6) 
Location of existing and proposed underground utilities, sewers, water lines and all rights-of-ways.
C. 
Soil types and boundaries within the site area and areas tributary to the site.
D. 
Final Topography.
(1) 
Changes to land surface and vegetative cover.
(2) 
Areas to be cut or filled.
(3) 
Structures, roads, paved areas and buildings.
(4) 
Final contours at intervals of two feet. In areas of steep slopes (greater than 15%), five-foot contour intervals may be used.
(5) 
Stormwater Management District boundaries applicable to the site.
E. 
Stormwater Management Controls.
(1) 
All stormwater management controls must be shown on a map, described and detailed including, but not exclusively:
(a) 
Groundwater recharge methods such as seepage pits, beds or trenches. When these structures are used, the locations of septic tank infiltration areas and wells must be shown.
(b) 
Other control devices or methods such as roof-top storage, semipervious paving materials, grass swales, parking lot ponding, vegetated strips, detention or retention ponds, storm sewers, etc.
(2) 
All calculations, assumptions and criteria used in the design of the control device or method must be shown.
F. 
Maintenance Program. A maintenance program for all stormwater management control facilities must be included. This program must include the proposed ownership of the control facilities, the maintenance requirements for the facilities, and detail the financial responsibility for the required maintenance.
[Ord. 334 (92-1), 2/5/1992, § 403; as amended by Ord. 490 (2017-05), 10/18/2017]
1. 
For regulated activities specified in § 23-104, Subsections 4A and B:
A. 
The stormwater management plan shall be submitted by the developer to the Borough Secretary (or other appropriate person) as part of the preliminary plan submission or land development.
B. 
Three copies of the stormwater management plan shall be submitted.
C. 
Distribution of the stormwater management plan will be as follows:
(1) 
One copy to the Borough Council.
(2) 
One copy to the Borough Engineer.
(3) 
One copy to the York County Planning Commission.
2. 
For regulated activities specified in § 23-104, Subsections 4C and D:
A. 
The stormwater management plan shall be submitted by the developer to the Borough Building Permit Officer as part of the building permit application.
B. 
One copy of the stormwater management plan shall be submitted.
3. 
For regulated activities specified in § 23-104, Subsections 4E and F:
A. 
The stormwater management plan submitted by the developer to York County Planning commission for the purposes of coordination with the DEP permit application process under 25 Pa. Code, Chapter 105, "Dam Safety and Waterway Management," or 25 Pa. Code, Chapter 106, "Floodplain Management," or DEP's rules and regulations.
B. 
One copy of the stormwater management plan shall be submitted.
[Ord. 334 (92-1), 2/5/1992, § 404; as amended by Ord. 490 (2017-05), 10/18/2017]
1. 
The Borough Engineer shall review the stormwater management plan consistency with the adopted South Branch Codorus Creek Stormwater Management Plan as embodied by this Chapter and against any additional storm drainage provisions contained in the Borough Subdivision and Land Development [Chapter 22] or Zoning Ordinance [Chapter 27], as applicable.
2. 
The York County Planning Commission shall provide an advisory review of the stormwater management plan for consistency with the South Branch Codorus Creek Watershed Stormwater Plan.
3. 
For regulated activities specified in § 23-104, Subsections 4A and B, the York County Planning Commission shall provide written comments to the Borough, within 30 days, as to whether the stormwater management plan has been found to be consistent with the South Branch Codorus Creek Watershed Stormwater Plan.
4. 
For regulated activities specified in § 23-104, Subsections 4E and F, the York County Planning Commission shall notify DEP whether the stormwater management plan is consistent with the South Branch Codorus Creek Watershed Stormwater Plan and forward a copy of the review letter to the Borough and developer.
5. 
The Borough shall not approve any subdivision or land development (regulated activities § 23-104, Subsections 4A and B) or building permit application (regulated activities § 23-104, Subsections 4C and D) if the stormwater management plan has been found to be inconsistent with the South Branch Codorus Creek Watershed Stormwater Plan by the Borough Engineer.
[Ord. 334 (92-1), 2/5/1992, § 405]
A modification to a submitted stormwater management plan for a proposed development site which involves a change in control methods or techniques, or which involves the relocation or redesign of control measures, or which is necessary because soil or other conditions are not as stated on the stormwater management plan as determined by the Borough Engineer shall require a resubmission of the modified stormwater management plan consistent with § 23-403, subject to review per this Section of this Chapter.
[Ord. 334 (92-1), 2/5/1992, § 406]
1. 
The Borough Council may hear requests for waivers where it is alleged that the provisions of this Chapter inflict unnecessary hardship upon the applicant. The waiver request shall be in writing on an application form promulgated by the Borough and accompanied by the requisite fee based upon a fee schedule adopted by the Borough. A copy of the completed application form shall be provided to each of the following: Borough, Borough Engineer, Borough Solicitor and York County Planning Commission. The application shall fully document the nature of the alleged hardship.
2. 
The Borough may grant a waiver provided that all of the following findings are made in a given case:
A. 
There are unique physical circumstances or conditions, including irregularity of lot size or shape, or exceptional topographical or physical conditions peculiar to the particular property, and the unnecessary hardship is due to such conditions, and not the circumstances or conditions generally created by the provisions of this Chapter in the Stormwater Management District in which the property is located.
B. 
Because of such physical circumstances or conditions, there is no possibility that the property can be developed in strict conformity with the provisions of this Chapter, including the "no harm" provision and that the authorization of a waiver is therefore necessary to enable the reasonable use of the property.
C. 
That such unnecessary hardship has not been created by the applicant.
D. 
That the waiver, if authorized, will represent the minimum waiver that will afford relief and will represent the least modification possible of the regulation in issue.
3. 
In granting any waiver, the Borough Council may attach such reasonable conditions and safeguards as it may deem necessary to implement the purposes of Act 167, 32 P.S. § 680.1 et seq., and this Chapter.