The WQMP is intended to provide guidelines for project-specific post-construction Best Management Practices (BMPs) and for regional and sub-regional Source Control BMPs and Structural BMPs to address management of Urban Runoff quantity and quality to protect Receiving Waters.
New Development and Significant Redevelopment projects, as defined in the table below, shall be required to submit a project-specific WQMP prior to the first discretionary project approval or permit.
|If ANY question is answered YES, your project requires a Project-Specific WQMP. If ALL questions are answered NO, your project does NOT require a Project-Specific WQMP.|
|Does your proposed project include:||Yes||No|
|1. All Significant Redevelopment projects; defined as the addition
or creation of 5,000 or more square feet of impervious surface on an
existing development site. This includes, but is not limited to:
|2. Residential development of 10 units or more, including Single Family and Multi-Family Dwelling Units, Condominiums, or Apartments.|
|3. Industrial and commercial development where the land area represented by the proposed map or permit is 100,000 square feet, or more, including, but not limited to, non-residential developments such as hospitals, educational institutions, recreational facilities, mini-malls, hotels, office buildings, warehouses, light industrial, and heavy industrial facilities.|
|4. Automotive repair shops (with standard industrial classification ("SIC") codes 5013, 7532, 7533, 7534, 7537, 7538, and 7539).|
|5. Restaurants (SIC Code 5812) where the project site is 5,000 square feet, or more.|
|6. Hillside developments that creates 10,000 square feet or more of impervious area including developments in areas with known erosive soil conditions or where natural slope is 25 % or more.|
|7. Parking lots of 5,000 square feet or more of impervious surface exposed to storm water. Parking lot is defined as a site or facility for the temporary storage of motor vehicles.|
|8. Developments creating 2,500 square feet, or more, of impervious surface that is adjacent to (within 200 feet) or discharging directly into areas designated in the Basin Plan as waters supporting habitats necessary for the survival and successful maintenance of plant or animal species designated under state or federal law as rare, threatened, or endangered species (defined in the Basin Plan as "RARE") or waterbodies listed on the CWA Section 303(d) list of Impaired Waterbodies within the Permit Area.|
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Estimated turnaround times for the various plan check activities are as follows:
|Plan Check Type||Â First Check Duration||Second Check (or more)|
|Grading only||10 days||5 days|
|Grading with WQMP||20 days||10 days|
For the purposes of the City of Riverside, a Preliminary WQMP will contain all the required elements of a Final WQMP with the notable exceptions of the Approved Conditions and the Recorded Covenant. Educational Materials may be included or may be deferred until the Final WQMP, however all pertinent hydrology studies and calculations and all treatment control BMP sizing and design calculations are expected to be included in the approved Preliminary WQMP.
For projects that required a Preliminary WQMP as a condition of the entitlement, the Final WQMP must now be completed and recorded prior to issuance of the grading permit.
When a WQMP plan check is completed, the engineer of record is notified to pick up the report from either Planning in the case of a Preliminary WQMP or from Public Works along with the Grading plans in the case of the Final WQMP.
Approval of the Preliminary WQMP is required prior to any action by the Planning Commission or Zoning Administrator. Approval of the Final WQMP and recordation of the appropriate covenant is required prior to the issuance of any grading or building permit.
In designing a project, especially a project at least one acre in size, pollution prevention measures are required as part of the final project design. These pollution prevention measures shall be designed to meet or exceed minimum treatment levels, which vary based on the project type.
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Listed below are guidelines and forms to help comply with this post-construction requirement.
(Note: To access these guidelines and forms, you will be redirected to the Riverside County Flood Control and Water Conservation District website.)
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