2. Restoration, retrofit or upgrade an existing stormwater management
   feature (inadequate detention pond, for example).
3. Creation of new stormwater management features, especially green
   infrastructure, for a previously unmanaged site
4. Provide a water-based benefit to the public other than stormwater
   management (for example, extend a public sewer to an area not already
   served).
5. Treatment of abandoned mine drainage.

3. The proposal for demonstrated equivalency shall be accompanied by
   documentation or methodology quantifying the equivalency of the proposed project
   to what would have been originally required. Acceptable documentation or
   methodology may include use of the Worksheets and Checklist found in PA DEP
   NPDES permit application, Appendix D or approved method showing the proposed
   equivalency:

1. Controls approximately the same amount of runoff volume as what would
   originally have been proposed
2. Improves approximately the same amount of runoff quality as would have
   been originally proposed
3. Is located within an impaired watershed or stream segment which will
   benefit from the proposed project. Impairment may include stream
   impairment, reduced stream buffer, and pollutant loading. Refer to the
   Westmoreland County Integrated Water Resources Plan at
   www.westmorelandstormwater.org .

4. The demonstrated equivalent stormwater activity shall:

1. Be constructed concurrently with the project for which it is being applied;
2. Be constructed according to plans approved by the municipality and the
   WCD including any erosion control and stormwater management practices
   as applicable;
3. Obtain all necessary permits;
4. Be located on land owned by or controlled by the applicant or by a
   cooperating public or private entity(s) (school, church, club, municipality,
   etc.);
5. Be protected by a perpetual easement or deed restriction, or landowner
   agreement;
6. Be located in the same general watershed as the project for which it is
   being applied; and
7. Have an Operation and Maintenance Plan (O&M) specifying who is
   responsible for what tasks.

§306. Small Project

1. When a regulated development activity (refer to Table in Section 302 of this 'ordinance)
   creates impervious area between 3,000 and 10,000 square feet, or total earth disturbance
   between 5,000 and 20,000 square feet, the stormwater management requirements are as
   follows. Refer also to Appendix C.
2. For new impervious surfaces, the first 1 inch of runoff shall be permanently removed from the runoff flow, and shall not be released to waters of the Commonwealth. Removal options include reuse, evaporation, transpiration and infiltration.

1. Facilities, to the greatest extent possible and subject to municipality approval, shall be
   designed to drain the permanently removed runoff volume in a period no greater than 72
   hours. Runoff volumes in excess of2 inches shall be safely conveyed to a stable vegetated
   area, natural watercourse, the curb or gutter line of roadway or existing storm
   collection/conveyance/control system as applicable.
2. This method is exempt from the requirements of Section 402 of this ordinance.
3. A Small Project Stormwater Management Plan must be submitted to Bolivar Borough
   and the WCD and shall consist of the following items and related support material needed
   to determine compliance with Sections 307 to 311 of this ordinance. The applicant can also
   use protocols listed in Appendix C.
4. Narrative: General description of proposed stormwater management techniques,
   including calculations, assumptions and criteria used in the design of the
   stormwater management facilities and BMPs, and construction specifications of the
   materials to be used for stormwater management facilities and BMPs.
5. Stormwater Management Plan: Showing locations of all stormwater management
   facilities and BMPs, especially green infrastructure, limits of disturbance, including
   the type and amount of proposed impervious area, structures, roads, paved areas
   and buildings;
6. Small Project Stormwater Management Worksheet;
7. Signed agreement page for operation and maintenance of stormwater facilities and
   BMPs (Refer to Appendix B); and
8. Erosion and Sediment Control Plan: including all reviews and letters of adequacy
   from the Conservation District.

§307. General Standards.

A. Proposed land development must consider avoiding, minimizing, and mitigating impacts
to the site that may increase stormwater runoff from the proposed project. Applied
sequentially, these three low impact development strategies should be an overall guide as a
project is planned and carried out.

2. The Westmoreland County Integrated Water Resources Plan provides an online decision
   making tool to assist developers, designers, property owners in addressing all water
   resources during development and redevelopment and should be consulted. Refer to
   www.paiwrp.com and www.westmorelandstormwater.org.
3. The following provisions shall be considered the overriding performance standards against
   which all proposed storm water control measures shall be evaluated and shall apply
   throughout Bolivar Borough.

1. Any landowner and any person engaged in the alteration or development of land
   which may affect stormwater runoff characteristics shall implement such measures
   as are reasonably necessary to prevent injury to health, safety or other property. For
   alteration or development taking place in stages, the cumulative development must
   be used in determining conformance with this ordinance. Such measures shall
   include such actions as are required:
   

1. To assure that the maximum rate of stormwater runoff is no greater after
   development than prior to development activities for the 100 year storms.
   Rainfall data shall be obtained from NOAA Atlas 14 or other source approved
   by the municipality.
2. To manage the water quality, rate and volume and direction of resulting
   stormwater runoff in a manner which otherwise adequately protects health
   and property from possible injury.
3. To notify adjacent property owners or owners of affected properties of any
   alteration or increase of stormwater flows.

2. Runoff treatment BMPs must be employed where necessary to ensure the water
   quality, rate and volume requirements are met.
3. Volume control BMPs shall be used to maintain existing hydrologic conditions for
   small storm events by promoting groundwater recharge and/or evapotranspiration.
   Runoff volume controls shall be implemented using the P A DEP Stormwater BMP
   Manual 2006 or other approved method such as those listed in the following chart:

Acceptable Computation Methodologies for Stormwater Management Plans:

          METHOD:                           DEVELOPED BY:                 APPLICABILITY: