Portland stormwater manual

City of portland stormwater management manual august 2016 definitions 1 definitions definitions note. Summary of ms4 permit requirements and incorporation into the ports stormwater dsm appendix c. The manual identifies best management practices for how to build, operate, and treat wastewater and stormwater to prevent pollution and spills. Best management practices bmps the multnomah county municipal npdes stormwater permit program within the portland permit area utilizes best management practices bmps to meet regulations and implement the program, as described below. Casco bay estuary partnership organization focused on stewardship of casco bay, includes 2015 state of the bay report. City of portland 389 congress street portland, me 04101 phone. The city of eugene stormwater management manual, noted above in table 2, includes a worksheet titled simplified approach for stormwater management for sizing stormwater facilities based on the effective impervious area in the facilitys drainage. Port of portland stormwater design standards manual dsm. To get a credit, a structural control needs to be built and a credit needs to be applied for with the city of portland department of public works. Facilities need to be designed to satisfy those criteria as stand. Requirements and policies, purpose of the stormwater management manual. Proposed 2020 stormwater management manual the city of. Stormwater manual workshop presentation the city of south portland must comply with state and federal regulations to reduce the harmful effects of stormwater runoff.

The design of this urban courtyard is inspired by persian gardens. City of portland stormwater management manual august 2016 a10 appendix a. Ecologys stormwater management manual for western washington, the city of portland. The clean water act requires municipalities like south portland, which are referred to as municipal separate storm sewer systems or ms4s, to comply with permit regulations that were established to minimize the harmful effects of polluted stormwater runoff and improve local water quality. The city of portland, under the conditions of its npdes permit, has the authority to inspect properties and may issue a notice of violation n. Stormwater credit manual city of portland, maine 2 1. Groundwater and soil onsite testing procedures appendix e. Port of portland stormwater design standards manual 2017 appendices appendix a. The stormwater management manual swmm allows the city of portland to protect both watershed resources and infrastructure investments with every development or improvement. By approving the central city 2035 plan, council enacted a new ecoroof requirement that applies to most buildings in the central city plan district. The 2020 stormwater management manual became effective dec.

Properly managing stormwater is vital to protecting our water resources for a great number of uses, including fish and wildlife habitat, recreation, and drinking water. Environmental services revises the stormwater management manual to meet current regulatory requirements and to provide current technical standards. Portland manages stormwater as a valuable resource through green infrastructure, along with pipes, sumps and the wastewater treatment plant, to improve watershed health. This is part of our mission to protect public health, water quality and the environment.

Stormwater management the city of portland, oregon. City of portland for a full discussion of monitoring completed for this permit. Stormwater user fee credit manual portland, tennessee. The city of portland ensures meaningful access to city programs, services, and activities to comply with civil rights title vi and ada title ii laws and reasonably provides. The stormwater management manual swmm provides policy and design requirements for stormwater management throughout the city of portland.

April 27, 2018 by city of portland, tn in stormwaterregulations ms4 stormwater design or bmp manuals tdec erosion prevention and sediment control handbook attachments. A project disturbing one acre or more must meet the basic standards. Richland station was renamed portland in 1888, and then incorporated. Transportation systems and street design standards. Port of portland stormwater design standards manual. Stormwater project manager application estuary partnership. Please refer to the hydraulics manual for additional information and project requirements, or contact the hydraulics program. Jun 03, 2019 portland s stormwater management manual is an example of a thorough document with policy and design requirements developed for a municipality west of the cascades. In response to these regulations, the city established stormwater management performance standards in april 2009 and more recently was awarded funding from casco bay estuary partnership develop a webbased stormwater management manual.

Design considerations and criteria stormwater manuals for the cities of portland and eugene. The following definitions apply to terms used in this manual and are intended to supplement city code chapters 17. Guidance on cc2035 ecoroof requirements and the stormwater. Basic standards 1 when the basic standards must be met. City of portland aqualis postconstruction stormwater. Stormwater design methodologies, simplified approach sizing calcuations a. Stormwater and grading design standards city of oregon city. The portland manual is the result of significant investment, research, and field testing and is a valuable resource for other communities and agencies in the state. Odots hydraulics program monitors stormwater facilities, the operations and maintenance manuals located at each facility, as well as related program data. Portland stormwater solutions handbook national association of. Bes specifies design criteria, such as pollution reduction storm intensity and volume, and facility performance goals. As of 2016, odot maintains more than 1,000 facilities statewide. Feb 09, 2021 the 2020 stormwater management manual became effective dec. The stormwater project manager positions requires five years experience managing the implementation of stormwater retrofit projects, a thorough understanding of current stormwater retrofit best management practices and stormwater management manuals i.

One of the biggest water quality aspects for the port is stormwater management. Any person, company, or agency that applies for a permit through the city of portland. Ms4 stormwater design or bmp manuals tdec erosion prevention and sediment control handbook. Updates to the citys stormwater management standards, set forth in ocmc. Mar 15, 2021 the city of portland ensures meaningful access to city programs, services, and activities to comply with civil rights title vi and ada title ii laws and reasonably provides.

In some cases, municipal stormwater permittees have the option of either adopting portions of the appropriate stormwater manual or portions of a regional manual determined to be equivalent to the ecology manual. The stormwater management manual swmm allows the city of portland to protect both watershed resources and infrastructure investments with every. The manual sets city policy and design requirements for stormwater management on all development, redevelopment, and improvement projects on both public and private property in portland. To help accomplish these overall goals, the citys stormwater management program plan identifies specific minimum control measures that must implemented over ongoing 5 year permit periods. Environmental services provides city of portland residents with clean river programs, including water quality protection, wastewater collection and treatment. The standards set forth in rogue valley stormwater quality design manual design manual apply to all development or redevelopment that creates 2,500 square feet or more of impervious surface, both public and private, within the ms4 boundaries of any. Overview on october 3, 2016, the city of portland board of mayor and alderman passed ordinance no. Portland stormwater management standards and maine dep chapter 500 stormwater management. This manual was developed to assist communities, watershed groups, individuals, engineers, and developers in understanding stormwater impacts and to select appropriate best management practices bmps to manage stormwater from development, in accordance with the maine deps chapter 500 stormwater management rules. The mission of the stormwater and floodplain management is to provide safe, effective and economical stormwater drainage systems through planning.

The manual covers sitespecific activities like waste storage, loading and unloading, exterior storage and processing, and dewatering. Here, we provide clarification for how the requirement of cc2035 relates to the stormwater management manual. To request these services, contact 5038234000 or tty 503823. State of oregon department of environmental quality clean.

Stormwater management portland, tx official website. Our stormwater management program is designed to prevent, reduce and eliminate the discharge of polluted stormwater to the columbia slough, willamette, columbia and tualatin tributary rivers. Older portland neighborhoods have a combined sewer system, which collects stormwater runoff from streets and sewage from buildings in the same pipes. The manual provides policy that governs drainage and discharges resulting from development and postdevelopment activities or specific site uses.

Stormwater credit manual for more information about credits available to residents and businesses see the stormwater credit manual. The city of portland offers several ways to pay your bill. The city of portland s stormwater management manual provides stormwater pollution reduction requirements and guidance. Stormwater management program city of south portland. Proposed 2020 stormwater management manual portland, oregon. South portland stormwater manual funding organizations thank you. This treatment capacity must be automatically maintained by the system design e. Stormwater management and infrastructure city of portland, oregon. City of portland stormwater management manual august 2016 16 chapter 1.

With about 3,000 acres of impervious surface, the port manages miles of collection systems. Port of portland environmental storwater management. Port of portland stormwater retrofit strategy 1 retrofit strategy introduction the port of portland port is a regional government agency authorized by the state of oregon. The city of portland 2020 stormwater management manual swmm became effective dec. The requirements in the manual apply to all development, redevelopment, and improvement projects within the city of portland on private and public property and in the public rightofway. Stormwater manuals washington state department of ecology. Stormwater management manual city of portland, oregon. The swmm provides policy and design requirements that govern stormwater management. Until april 6, 2021, project designers can use either the. The port owns facilities residing within clackamas, multnomah, and washington counties in oregon. As each project meets the requirements of this manual, it will contribute to achieving these important citywide goals.