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Other/Miscellaneous
Engineered plans must follow the latest regulations and standards set forth in the Puyallup Municipal Code (PMC), the City Standards for Public Works Engineering and Construction (design standards), and the current City adopted stormwater manual at the time of civil permit application [PMC 21.10.040]. The stormwater design associate d with this Development Permit will be reviewed for compliance with the 2019 Stormwater Management Manual for Western Washington (ECY manual), which is the current adopted stormwater manual. The comments provided below are project-specific in nature and should not be considered an exhaustive list of the requirements from the PMC, design standards, or the DOE manual.
CIVIL PERMIT APPLICATION
Notes: A civil permit application is required for commercial projects triggering stormwater, projects doing large amounts of on-site grading, any project required to construct frontage at a site that doesn’t have existing vertical curb, and a project proposing new connections to city.
• Civil engineering drawings will be required for this project prior to issuance of the first building permit (The city has transitioned to electronic review. Please reach out to the city permit technicians at PermitCenter@PuyallupWA.gov and they will guide you how to submit). Included within the civil design package will be a utility plan overlaid with the landscape architects landscaping design to ensure that potential conflicts between the two designs have been addressed.
• Engineering plans cannot be accepted until Planning Department requirements have been satisfied, including but not limited to, SEPA, Preliminary Site Plan approval, CUP, and/or Hearing Examiner conditions.
• Civil engineering plan review fee is $470.00 (plus an additional per hour rate of $180.00 in excess of 5 hours). The Civil permit shall be $300.00 and the inspection fee shall be 3% of the total cost of the project as calculated on the Engineering Division Cost Estimate form. [City of Puyallup Resolution No. 2098]
• Civil Engineering drawings shall conform to the following City standards Sections 1.0 and 2.0:
o Engineering plans submitted for review and approval shall be on 24 x 36-inch sheets.
o Benchmark and monumentation to City of Puyallup datum (NAVD 88) will be required as a part of this project / plat.
o The scale for design plans shall be indicated directly below the north arrow and shall be only 1”=20’ or 1”=30’. The north arrow shall point up or to the right on the plans.
o Engineering plan sheets shall be numbered sequentially in this manner: Sheet 1 of 20, Sheet 2 of 20, etc. ending in Sheet 20 of 20.
o All applicable City Standard Notes and Standard Details shall be included on the construction plans for this project. A copy of the City Standards can be found on the City’s web site under Office of the City Engineer, Engineering Services.
Frontage Code:
Below is the City frontage code for a project of this nature. Past projects in the fair have triggered and addressed frontage improvements so there may not be any frontage requirements at this time. A City inspector may check for compliance with the latest standards at time of building permit to assess requirements.
New Commercial/Industrial Buildings or Expansion of Existing buildings:
• Any person or entity who constructs or causes to be constructed any new commercial/industrial building or expansion of an existing commercial/industrial building either of which have a structure improvement value exceeding $200,000 in valuation shall construct curb, gutters, planter strips, street trees, sidewalks, storm drainage, street lighting, and one-half street paving (only required if the existing pavement condition is poor) in accordance with the city’s Public Works Engineering and Construction Standards and Specifications. The frontage improvements shall be required along all street frontage adjoining the property upon which such building will be placed. Frontage improvements shall also be required where any reasonable access to the property connects to the public right-of-way, although the primary access is located on another parcel. There is no cap on frontage improvements for new buildings or expansion of existing buildings.
WATER
Water Within City Service Area:
• The city will need to confirm the location and size of the existing meter for the existing building. Some of the water standards will apply if the meter is being replaced.
• The proposed water system shall be designed and constructed to current City standards. [PMC 14.02.120]
• The applicant shall provide and install the water meters as required to service the site. [PMC 14.02.120(f) & CS 301.3]
Backflow Protection
• The City will need to confirm existing backflow protection at time of building permit.
• If the building proposal meets the criteria of table 13 from the RCW below, a reduced pressure backflow assembly (RPBA) is required on the domestic line at each location where the proposed water main connects to the public system. If an irrigation system is also proposed, a DCVA is required on that line as well. [PMC 14.02.220(3) & CS 302]
• The following list shows examples of uses and industries where an RPBA is probably required:
o Agricultural (farms and dairies)
o Beverage bottling plants
o Car washes
o Chemical Plants
o Commercial laundries and dry cleaners
o Premises where both reclaimed and potable water are provided
o Film processing facilities
o Food processing plants
o Hospitals, medical and dental centers, nursing homes and veterinary
o Blood and plasma centers
o Premises with separate irrigation systems using the purveyor’s water with chemical addition
o Laboratories
o Metal plating industries
o Mortuaries
o Petroleum processing or storage plants
o Piers and docks
o Radioactive material processing plants or nuclear reactors
o Wastewater lift stations and treatment plants
o Premises with an unapproved auxiliary water supply interconnected with potable supply
• Applicant shall provide backflow protection on the domestic line with the installation of a double check valve assembly (DCVA) on the domestic connection to the public water main, if one does not current exist. A plumbing permit is required for this work to be completed; and the unit should be located outside the building, immediately downstream of the existing water meter if possible. [PMC 14.02.220(3) & CS 302.2]
SEWER
• The proposed sewer system shall be designed and constructed to current City standards. [PMC 14.08.070]
• Side sewers shall have a cleanout at the property line, at the building, and every 100 feet between the two points. [PMC 14.08.120 & CS 401(6)]
• The City Sewer Department must conduct a visual inspection of a previously used side sewer to determine if that side sewer can be used again. Existing laterals must meet current standard to be used again. It is the responsibility of the property owner to expose the line as necessary for that inspection. The City reserves the right to request video inspection of the side sewer to assist in its determination. Redevelopment projects shall utilize the existing trench where possible. CS 401(15) and CS 401(16)
• Grease Interceptors are required for all commercial facilities involved in food preparation. Due to the proposed use within the building, the applicant shall install an external grease interceptor in accordance with the current edition of the Uniform Plumbing Code adopted by the City of Puyallup, Puyallup Municipal Code, and City standard details. [PMC 14.06.031(3) & CS 401(5), 402.3]
If a trash enclosure already exists for this site, confirm on the plans that it meets the trash enclosure standards below.
Trash Enclosures [CS 208]:
• Enclosures (with roof) shall be required for all new commercial and redevelopment projects where Minimum Requirement #1 though #5 or Minimum Requirement #1 though #9 are required, as outlined in the Ecology Manual. Enclosures shall be covered (roof) and fully enclosed to prevent precipitation from entering containers, compactors, grease traps and the enclosure floor. This does not exempt the requirement for watertight containers.
• Enclosures shall be large enough for a garbage service vehicle to pick up and dump the waste without the container being rolled outside the enclosure. Total height of the enclosure shall be a minimum of 15 feet. The gate opening shall be a minimum of 12 feet wide and swing open a minimum of 90 degrees from the closed position. Each gate shall also include a drop rod and receiving posts.
• Enclosures should be strategically placed for accessibility and designed to accommodate the turning radius of a SU-30 single unit truck.
• A grade break shall be provided around the enclosure to prevent runoff from entering the enclosure.
• No stormwater catch basins or manholes should be located near the enclosure, if unavoidable the lid should be solid and locking.
• The interior floor of the enclosure area shall slope towards a Type I catch basin, or equivalent, and be plumbed to sanitary sewer.
• Roof downspouts for enclosures shall be connected to an existing or new stormwater collection system and accounted for during design. Downspouts discharging over sidewalks and parking lots are prohibited.
• When designing garbage enclosures, developers are encouraged to contact the garbage service provider to verify the location and access.
STORMWATER
• Design shall occur pursuant to the 2019 Stormwater Management Manual for Western Washington (The 2019 ECY Manual).
• Preliminary feasibility/infeasibility testing for infiltration facilities shall be in accordance with the site analysis requirements of the Ecology Manual, Volume III, Chapter 3.2, specifically:
- Groundwater evaluation, either instantaneous (MR1-5) or continuous monitoring well (MR1-9) during the wet weather months (December 1 through April 1).
- Hydraulic conductivity testing:
o If the development triggers Minimum Requirement #7 (flow control), if the site soils are consolidated, or is encumbered by a critical area a Small Scale Pilot Infiltration Tests (PIT) during the wet weather months (December 1 through April 1) is required.
o If the development does not trigger Minimum Requirement #7, is not encumbered by a critical area, and is located on soils unconsolidated by glacial advance, grain size analyses may be substituted for the Small Scale PIT test at the discretion of the review engineer.
- Testing to determine the hydraulic restriction layer.
- Mounding analysis may be required in accordance with Ecology Volume V Section 5.2.7.
• The applicant is responsible for submitting a preliminary stormwater management site plan which meets the design requirements provided by PMC Section 21.10 and Ecology Manual Volume I, Section 2.5.1. The preliminary stormwater site plan (PSSP) shall be submitted prior to Preliminary Site Plan approval to ensure that adequate stormwater facilities are anticipated prior to development of the individual lot(s). The preliminary stormwater site plan shall reasonably estimate the quantity of roof and driveway stormwater runoff and the application of On-site Stormwater Management BMPs for the proposed development.
• The applicant shall include a completed stormwater flowchart, Figure 3.1, contained in Ecology’s Phase II Municipal Stormwater Permit, Appendix I with the stormwater site plan. The link below may be used to obtain the flowchart:
https://ecology.wa.gov/DOE/files/7a/7a6940d4-db41-4e00-85fe-7d0497102dfd.pdf
• Public right-of-way runoff shall be detained and treated independently from proposed private stormwater facilities. This shall be accomplished by providing separate publicly maintained storm facilities within a tract or dedicated right-of-way; enlarging the private facilities to account for bypass runoff; or other methods as approved by the City Engineer. [PMC 21.10.190(3)]
• The following items shall be included at the time of Civil permit submittal:
o A permanent storm water management plan which meets the design requirements provided by PMC Section 21.10. The plan and accompanying information shall provide sufficient information to evaluate the environmental characteristics of the affected areas, the potential impacts of the proposed development on surface water resources, and the effectiveness and acceptability of measures proposed for managing storm water runoff. The findings, existing and proposed impervious area, facility sizing, and overflow control shall be summarized in a written report. [PMC 21.10.190, 21.10.060]
o A written technical report that clearly delineates any offsite basins tributary to the project site and includes the following information: [PMC 21.10.060]
o the quantity of the offsite runoff;
o the location(s) where the offsite runoff enters the project site;
o how the offsite runoff will be routed through the project site.
o the location of proposed retention/detention facilities
o and, the location of proposed treatment facilities
o All pipe reaches shall be summarized in a Conveyance Table containing the following minimum information and included in the SSP:
Pipe Reach Name Design Flow (cfs)
Structure Tributary Area Pipe-Full Flow (cfs)
Pipe Diameter (in) Water Depth at Design Flow (in)
Pipe Length (ft) Critical Depth (in)
Pipe Slope (%) Velocity at Design Flow (fps)
Manning’s Coefficient (n) Velocity at Pipe-Full Flow (fps)
HGL for each Pipe Reach Percent full at Design Flow (%)
• A Construction Stormwater General Permit shall be obtained from the Department of Ecology if any land disturbing activities such as clearing, grading, excavating and/or demolition will disturb one or more acres of land, or are part of larger common plan of development or sale that will ultimately disturb one or more acres of land. The link below may be used to obtain information to apply for this permit:
http://www.ecy.wa.gov/programs/wq/stormwater/construction/
Stormwater R/D Facilities:
• Any above-ground stormwater facility shall be screened in accordance with planning requirements.
• Stormwater R/D facilities shall be a minimum of 20-feet from any public right-of-way, tract, vegetative buffer, and/or property line measured from the toe of the exterior slope/embankment of the facility. [PMC 21.10 & DOE Manual, Vol. V-1.2]
• A minimum of 5-feet clearance shall be provided from the toe of the exterior slope/embankment to any tract, property line, fence, or any required vegetative buffer. [PMC 21.10 & CS 206]
FEES
• Water and sewer connection fees and systems development charges are due at the time of building permit issuance and do not vest until time of permit issuance. Fees are increased annually on February 1st. To obtain credit towards water and sewer System Development Fees for existing facilities, the applicant shall provide the City evidence of the existing plumbing fixtures prior to demolition or removal. A written breakdown of the removed fixture types, quantities, and associated fixture units shall accompany the building permit application and be subject to review and approval by the City. [PMC 14.02.040, 14.10.030, PMC 14.02.040]
• Stormwater system development fees are due at the time of civil permit issuance for commercial projects and at the time of building permit issuance for single family or duplex developments and do not vest until time of permit issuance. Fees are increased annually on February 1st. The City will assess the amount of existing credits applied to the project based on how many credits the property is currently being billed for. [PMC 14.26.070]
Water
• A water system development charge (SDC) will be assessed based on the number of plumbing fixture units as defined in the Uniform Plumbing Code. Current SDC’s as of this writing are $5,218.00 for the first 15 fixture units and an additional charge of $349.61 for each fixture unit in excess of the base 15 plumbing fixture units. [PMC 14.02.040]
Sewer
• A sanitary sewer system development charge (SDC) will be assessed based on the number of plumbing fixture units as defined in the Uniform Plumbing Code. Current SDC’s as of this writing are $6,344.00 for the first 15 plumbing fixture units and an additional charge of $425.05 for each fixture unit in excess of the base 15 plumbing fixture units. [PMC 14.10.010, 14.10.030]
Stormwater
• A Stormwater Systems Development fee will be assessed for each new equivalent service unit (ESU) in accordance with PMC Chapter 14.26. Each ESU is equal to 2,800 square feet of ‘hard’ surface. The current SDC as of this writing is $4,013.00 per ESU.
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