32 ENVIRONMENTAL STANDARDS
This article implements the State Environmental Policy Act (SEPA), RCW 43.21C.120, and WAC ch. 197-11.
(Ord. No. 19-03, § 7.1.01, 9-4-2019)
For those proposals for which the Town is lead agency, the responsible official shall be the Mayor or designee. The responsible official shall make the threshold determination, supervise scoping and preparation of any required environmental impact statement (EIS), and perform any other function assigned to the lead agency or responsible official.
(Ord. No. 19-03, § 7.1.02, 9-4-2019)
(Ord. No. 19-03, § 7.1.03, 9-4-2019)
Categorical exemptions are set forth in WAC 197-11-800.
(Ord. No. 19-03, § 7.1.04, 9-4-2019)
(Ord. No. 19-03, § 7.1.05, 9-4-2019)
A threshold determination is required pursuant to WAC 197-11-310. Within 90 days of issuing a letter of completeness for the application and environmental checklist, the responsible official shall either make a threshold determination or notify the applicant that a determination of significance (DS) is likely and indicate the areas of likely impact. The applicant may request that the decision be postponed for an additional 30 days to allow the responsible official to evaluate mitigation measures proposed by the applicant. The responsible official shall grant such extension, if requested.
(Ord. No. 19-03, § 7.1.06, 9-4-2019)
(Ord. No. 19-03, § 7.1.07, 9-4-2019)
(Ord. No. 19-03, § 7.1.08, 9-4-2019)
(Ord. No. 19-03, § 7.1.09, 9-4-2019)
If the responsible official determines that a proposal may have a probable significant adverse environmental impact, the responsible official shall prepare and issue a determination of significance (DS) substantially in the form provided in WAC 197-11-980. The DS shall contain the information as set forth in WAC 197-11-360. An environmental impact statement (EIS) shall be prepared for projects for which a DS threshold determination has been issued consistent with the appropriate sections of this chapter and referenced sections of the Washington Administrative Code.
(Ord. No. 19-03, § 7.1.10, 9-4-2019)
An environmental impact statement (EIS) is required for project and non-project actions that may have a significant adverse impact on the environment as more specifically set forth in WAC 197-11-330 and shall be prepared pursuant to WAC 197-11-400 through 197-11-460.
(Ord. No. 19-03, § 7.1.11, 9-4-2019)
(Ord. No. 19-03, § 7.1.12, 9-4-2019)
The rules for consulting, commenting, and responding on all environmental documents under the State Environmental Policy Act (SEPA), including rules for public notice and hearings, are set forth below as well as in WAC 197-11-500 through 197-11-570.
(Ord. No. 19-03, § 7.1.13, 9-4-2019)
Existing environmental documents prepared under the State Environmental Policy Act (SEPA) or the National Environmental Policy Act (NEPA) may be used for an agency's own environmental compliance in a manner consistent with WAC 197-11-164 through 197-11-172 and 197-11-600 through 197-11-640.
(Ord. No. 19-03, § 7.1.14, 9-4-2019)
(Ord. No. 19-03, § 7.1.15, 9-4-2019)
Uniform usage and definitions of terms under State Environmental Policy Act (SEPA) are set forth in WAC 197-11-700 through 197-11-792.
(Ord. No. 19-03, § 7.1.16, 9-4-2019)
The Town adopts by reference the applicable State Environmental Policy Act (SEPA) forms in substantially the form set forth in the applicable sections of the SEPA rules, WAC ch. 197-11, as now promulgated or hereafter amended, for use in carrying out local SEPA policies and procedures.
(Ord. No. 19-03, § 7.1.17, 9-4-2019)
The areas of special flood hazard identified by the Federal Insurance Administration in a scientific and engineering report entitled "The Flood Insurance Study for Spokane County, Washington and Incorporated Areas" dated July 6, 2010, and any revisions thereto, with an accompanying flood insurance rate map (FIRM), and any revisions thereto, are hereby adopted by reference and declared to be a part of this article. The flood insurance study (FIS) and the FIRM are on file at 20 West Emma, Rockford, Washington. The best available information for flood hazard area identification as outlined in RMC 13.32.380 shall be the basis for regulation until a new FIRM is issued that incorporates data utilized under RMC 13.32.380.
(Ord. No. 19-03, § 7.3.1, 9-4-2019)
In the interpretation and application of this article, all provisions shall be:
(Ord. No. 19-03, § 7.3.2, 9-4-2019)
The degree of flood protection required by this article is considered reasonable for regulatory purposes and is based on scientific and engineering considerations. Larger floods can and will occur on rare occasions. Flood heights may be increased by manmade or natural causes. This article does not imply that land outside the areas of special flood hazards or uses permitted within such areas will be free from flooding or flood damages. This article shall not create liability on the part of the Town, any officer or employee thereof, or the Federal Insurance Administration, for any flood damages that result from reliance on this article or any administrative decision lawfully made hereunder.
(Ord. No. 19-03, § 7.3.3, 9-4-2019)
A development permit shall be obtained before construction or development begins within any area of special flood hazard established in RMC 13.32.910. The permit shall be for all structures including manufactured homes, as set forth in RMC ch. 13.40, and for all development including fill and other activities, also as set forth in RMC ch. 13.40.
(Ord. No. 19-03, § 7.3.4, 9-4-2019)
Application for a development permit shall be made on forms furnished by the Town and may include, but not be limited to, plans in duplicate drawn to scale showing the nature, location, dimensions, and elevations of the area in question; existing or proposed structures, fill, storage of materials, drainage facilities; and the location of the foregoing. Specifically, the following information is required:
(Ord. No. 19-03, § 7.3.5, 9-4-2019)
The Town Council is hereby appointed to administer and implement this article by granting or denying development permit applications in accordance with its provisions.
(Ord. No. 19-03, § 7.3.6, 9-4-2019)
Duties of the Town Council shall include, but not be limited to:
(Ord. No. 19-03, § 7.3.7, 9-4-2019)
(Ord. No. 19-03, § 7.3.8, 9-4-2019)
(Ord. No. 19-03, § 7.3.9, 9-4-2019)
In all areas of special flood hazards where base flood elevation data has been provided as set forth in RMC 13.32.910 or 13.32.970(d), relating to use of other base flood data, the following provisions are required:
(Ord. No. 19-03, § 7.3.10, 9-4-2019)
In areas with base flood elevations (but a regulatory floodway has not been designated), no new construction, substantial improvements, or other development (including fill) shall be permitted within Zones AE and A1-30 on the community's FIRM, unless it is demonstrated that the cumulative effect of the proposed development, when combined with all other existing and anticipated development, will not increase the water surface elevation of the base flood more than one foot at any point within the community.
(Ord. No. 19-03, § 7.3.11, 9-4-2019)
Located within areas of special flood hazard established in RMC 13.32.910 are areas designated as floodways. Since the floodway is an extremely hazardous area due to the velocity of floodwaters that can carry debris, and increase erosion potential, the following provisions apply:
(Ord. No. 19-03, § 7.3.12, 9-4-2019)
Construction of new critical facilities shall be, to the extent possible, located outside the limits of the special flood hazard area (SFHA) (100-year floodplain). Construction of new critical facilities shall be permissible within the SFHA if no feasible alternative site is available. Critical facilities constructed within the SFHA shall have the lowest floor elevated three feet above base flood elevation or to the height of the 500-year flood, whichever is higher. Access to and from the critical facility should also be protected to the height utilized above. Floodproofing and sealing measures must be taken to ensure that toxic substances will not be displaced by or released into floodwaters. Access routes elevated to or above the level of the base flood elevation shall be provided to all critical facilities to the extent possible.
(Ord. No. 19-03, § 7.3.13, 9-4-2019)
(Ord. No. 19-03, § 7.4.01, 9-4-2019; Ord. No. 21-10, 8-4-2021)
| KEY | ||||
| E = Exempted use (subject to requirements of the underlying zoning; shoreline permits are not required) | ||||
| SD = Shoreline substantial development permit required | ||||
| CU = Conditional use permit required | ||||
| X = Prohibited | ||||
| N/A = Not applicable | ||||
| Shoreline Environmental Designation | ||||
| Shoreline Uses | Shoreline Residential | Mixed-Use | Urban Conservancy | Aquatic |
| Commercial: | ||||
| Water-dependent commercial uses | X | SD | X | CU |
| Water-related commercial uses | X | SD | X | X |
| Water-enjoyment commercial uses | X | SD | X | X |
| Non-water oriented commercial uses | X | SD | X | X |
| Industrial development: | ||||
| Water-dependent industrial uses | X | SD | X | CU |
| Water-related industrial uses | X | SD | X | X |
| Non-water oriented industrial uses | X | SD | X | X |
| Residential development: | ||||
| Single-family residences | E | E | E | X |
| Multifamily residences | SD | SD | X | X |
| Recreational development: | ||||
| Water-dependent recreation | SD | SD | SD | CU |
| Water-related recreation | SD | SD | SD | CU |
| Water-enjoyment recreation | SD | SD | SD | CU |
| Non-water-oriented recreation | SD | SD | CU | X |
| Agriculture (new) | X | E | E | X |
| In-stream structures | CU | CU | CU | CU |
| Transportation: | ||||
| New arterial streets and bridges | CU | CU | X | CU |
| New local access streets or street expansions | SD | SD | SD | X |
| Pedestrian and bicycle linkages to existing or planned transportation networks | SD | SD | SD | X |
| Maintenance roads accessory to a permitted use | SD | SD | SD | X |
| New railroad lines | X | SD | X | X |
| Expansion of existing railroad lines and bridges | X | SD | X | CU |
| Parking: | ||||
| Commercial parking or parking facility as primary use | X | X | X | X |
| Parking, accessory to a permitted use | SD | SD | SD | X |
| Utilities: | ||||
| Primary | SD | SD | CU | CU |
| Accessory | E | E | E | X |
| Routine maintenance activities | E | E | E | E |
| Shoreline Dimensional Standards:(1) | ||||
| Maximum building height | 35 feet | 35 feet | 35 feet | N/A |
| Shoreline buffer(2), (3) | 50 feet | 25 feet | 100 feet | N/A |
| Building setback from shoreline buffer | 10 feet | 10 feet | 15 feet | N/A |
| Notes: (1)Wetlands located within the shoreline jurisdiction shall comply with section 11.20.050 of the County critical areas ordinance. (2)The shoreline buffer is measured horizontally from the ordinary high water mark. (3)Shoreline buffers may be reduced via a variance if a hardship exists per RMC 13.32.980 and the property precludes, or significantly interferes with, reasonable use of the property if these buffer widths and mitigation sequencing as described in subsection (f) of this section is followed. | ||||
| KEY | ||||
| E = Exempted Use (subject to requirements of the underlying zoning; shoreline permits are not required) | ||||
| SD = Shoreline Substantial Development Permit | ||||
| CU = Conditional Use | ||||
| X = Prohibited | ||||
| N/A = Not Applicable | ||||
| Shoreline Environmental Designation | ||||
| Shoreline Modification Activity | Shoreline Residential | Mixed-Use | Urban Conservancy | Aquatic |
| Shoreline stabilization: | ||||
| "Hard," such as bulkheads | CU | CU | CU | CU |
| "Soft," such as bioengineering | SD | SD | SD | CU |
| Land disturbing activities: | ||||
| Piers and docks | SD | CU | X | CU |
| Fill: | ||||
| Fill upland of OHWM | CU | CU | CU | X |
| Fill waterward of OHWM | CU | CU | CU | CU |
| Breakwaters, jetties, groins, and weirs: | X | CU | X | CU |
| Clearing and grading | SD | SD | X | CU |
| Dredging and disposal | CU | CU | CU | CU |
| Maintenance dredging (1) | X | SD | X | SD |
| Shoreline habitat and natural systems enhancement projects | SD | SD | SD | SD |
| Notes: (1) Maintenance dredging only applies to previously dredged areas within Rock Creek. Dredging activities must be limited to the minimum extent deemed necessary. Dredging spoils shall not be deposited within shoreline jurisdiction. | ||||
(Ord. No. 19-03, § 7.4.02, 9-4-2019)
This article is adopted pursuant to the authority of the Town under RCW ch. 35.63 and in accordance with RCW ch. 36.70A, known as the Growth Management Act, and its amending legislation.
Ord. No. 19-03, § 7.2.01, 9-4-2019)
The purpose of this article is to designate, classify and protect the functions and values of existing areas and provide for public safety in a manner consistent with state law, while allowing for reasonable use of private property. By adopting the ordinance from which this article is derived, the Town acknowledges that critical areas provide a variety of important biological and physical functions that benefit the community and its residents or may pose a threat to human safety or property.
(Ord. No. 19-03, § 7.2.02, 9-4-2019)
(Ord. No. 19-03, § 7.2.03, 9-4-2019)
(Ord. No. 19-03, § 7.2.04, 9-4-2019)
Activities exempt from critical area review and reporting requirements shall be conducted consistent with performance standards identified in this article, including mitigation sequencing.
(Ord. No. 19-03, § 7.2.05, 9-4-2019)
(Ord. No. 19-03, § 7.2.06, 9-4-2019)
If critical area review is applicable to a proposed project, the Town:
(Ord. No. 19-03, § 7.2.07, 9-4-2019)
(Ord. No. 19-03, § 7.2.08, 9-4-2019)
Applicants shall demonstrate that all reasonable efforts have been made to avoid and minimize impacts to critical areas and buffers. When an activity impacting a critical area is proposed, applicants shall follow the mitigation sequencing order of preference, as follows, to ensure no net loss of function within the critical area.
(Ord. No. 19-03, § 7.2.09, 9-4-2019)
(Ord. No. 19-03, § 7.2.10, 9-4-2019)
(Ord. No. 19-03, § 7.2.11, 9-4-2019)
(Ord. No. 19-03, § 7.2.12, 9-4-2019)
(Ord. No. 19-03, § 7.2.13, 9-4-2019)
| Impact Intensity Category (Impact from Proposed Change in Land Use) | Types of Land Use |
| High impact | Commercial, industrial, and institutional |
| Residential (more than 1 unit/acre) | |
| High-intensity recreation (golf courses, ball fields, etc.) | |
| Moderate impact | Residential (1 unit/acre or less) |
| Moderate-intensity active open space (parks with biking, jogging, etc.) | |
| Paved trails | |
| Utility corridor with access/maintenance road | |
| Low impact | Passive open space (hiking, bird watching, etc.) |
| Unpaved trails | |
| Utility corridor without road or vegetation management |
| Wetland Category | Minimum Buffer Width (in feet) | ||
| Low Impact | Moderate Impact | High Impact | |
| I | 125 | 190 | 250 |
| II | 100 | 150 | 200 |
| III | 75 | 110 | 150 |
| IV | 25 | 40 | 50 |
| Disturbance | Required Measures to Minimize Impacts |
| Lights | Direct lights away from wetland. |
| Noise | Locate activity that generates noise away from wetland. |
| If warranted, enhance existing buffer with native vegetation plantings adjacent to noise source. | |
| For activities that generate relatively continuous, potentially disruptive noise, such as certain heavy industry or mining, establish an additional 10-foot-wide, heavily vegetated buffer strip immediately adjacent to the outer wetland buffer. | |
| Chemical use | Establish covenants limiting use of pesticides within 150 feet of wetland. |
| Apply integrated pest management. | |
| Stormwater runoff | Route all untreated runoff away from wetland while ensuring wetland is not dewatered. |
| Retrofit older stormwater facilities to meet current standards. | |
| Prevent channelized flow that directly enters the buffer. | |
| Infiltrate or treat, detain, and disperse into buffer new runoff from impervious surfaces and new lawns. | |
| Pets and human disturbance | Use privacy fencing or plant dense, thorny vegetation to delineate buffer edge and to discourage disturbance using vegetation appropriate for the Town. |
| Dust | Use best management practices to control dust. |
| Disruption of corridors or connections | Maintain connections to off-site areas that are undisturbed. |
| Restore corridors or connections to off-site habitats by replanting. | |
| Vegetation alteration | Protect and maintain native plant communities in buffers. |
(Ord. No. 19-03, § 7.2.14, 9-4-2019)
(Ord. No. 19-03, § 7.2.15, 9-4-2019)
| Category I | 4:1 | 8:1 | 16:1 |
| Category II | 3:1 | 6:1 | 12:1 |
| Category III | 2:1 | 4:1 | 8:1 |
| Category IV | 1.5:1 | 3:1 | 6:1 |
| Refer to Wetland Mitigation in Washington State, Part 1: Agency Policies and Guidance (state department of ecology Publication No. 06-06-011a, March 2006), for further information on wetland creation, reestablishment, rehabilitation, and enhancement. | |||
(Ord. No. 19-03, § 7.2.16, 9-4-2019)
In addition to the critical area report requirements in RMC 13.32.380, wetland reports shall include the following:
(Ord. No. 19-03, § 7.2.17, 9-4-2019)
RMC 13.32.570 through 13.32.620 apply to all clearing, uses, modifications, or development activities within designated fish and wildlife habitat conservation areas (FWHCA) and associated buffers.
(Ord. No. 19-03, § 7.2.18, 9-4-2019)
All areas meeting one or more of the following criteria, regardless of any formal identification, are hereby designated fish and wildlife habitat conservation areas (FWHCA):
(Ord. No. 19-03, § 7.2.19, 9-4-2019)
| Stream Classification | RMZ Width |
| Type S – Shorelines of the state | See SMP |
| Type F – Natural waters not classified as shorelines of the state with fish (e.g., Chester and Saltese Creeks) | 150' |
| Type Np – Non-fish, perennial | 50' |
| Type Ns – Non-fish, seasonal | 30' |
(Ord. No. 19-03, § 7.2.20, 9-4-2019)
All development and uses shall be prohibited within fish and wildlife habitat conservation areas (FWHCA) and their buffers, except when they are in accordance with RMC 13.32.590.
(Ord. No. 19-03, § 7.2.21, 9-4-2019)
(Ord. No. 19-03, § 7.2.22, 9-4-2019)
(Ord. No. 19-03, § 7.2.23, 9-4-2019)
(Ord. No. 19-03, § 7.2.24, 9-4-2019)
Article IV of this chapter is incorporated by reference herein and governs all uses, activities, and structures within special flood hazard areas.
(Ord. No. 19-03, § 7.2.25, 9-4-2019)
(Ord. No. 19-03, § 7.2.25, 9-4-2019)
RMC 13.32.660 through 13.32.690 shall apply to all clearing, uses, modifications, or development activities within or possibly impacting designated geologically hazardous areas and associated buffers.
(Ord. No. 19-03, § 7.2.26, 9-4-2019)
The following shall be exempt from the provisions of RMC 13.32.680 through 13.32.700:
(Ord. No. 19-03, § 7.2.27, 9-4-2019)
(Ord. No. 19-03, § 7.2.28, 9-4-2019)
(Ord. No. 19-03, § 7.2.29, 9-4-2019)
(Ord. No. 19-03, § 7.2.30, 9-4-2019)
(Ord. No. 19-03, § 7.2.31, 9-4-2019)
32 ENVIRONMENTAL STANDARDS
This article implements the State Environmental Policy Act (SEPA), RCW 43.21C.120, and WAC ch. 197-11.
(Ord. No. 19-03, § 7.1.01, 9-4-2019)
For those proposals for which the Town is lead agency, the responsible official shall be the Mayor or designee. The responsible official shall make the threshold determination, supervise scoping and preparation of any required environmental impact statement (EIS), and perform any other function assigned to the lead agency or responsible official.
(Ord. No. 19-03, § 7.1.02, 9-4-2019)
(Ord. No. 19-03, § 7.1.03, 9-4-2019)
Categorical exemptions are set forth in WAC 197-11-800.
(Ord. No. 19-03, § 7.1.04, 9-4-2019)
(Ord. No. 19-03, § 7.1.05, 9-4-2019)
A threshold determination is required pursuant to WAC 197-11-310. Within 90 days of issuing a letter of completeness for the application and environmental checklist, the responsible official shall either make a threshold determination or notify the applicant that a determination of significance (DS) is likely and indicate the areas of likely impact. The applicant may request that the decision be postponed for an additional 30 days to allow the responsible official to evaluate mitigation measures proposed by the applicant. The responsible official shall grant such extension, if requested.
(Ord. No. 19-03, § 7.1.06, 9-4-2019)
(Ord. No. 19-03, § 7.1.07, 9-4-2019)
(Ord. No. 19-03, § 7.1.08, 9-4-2019)
(Ord. No. 19-03, § 7.1.09, 9-4-2019)
If the responsible official determines that a proposal may have a probable significant adverse environmental impact, the responsible official shall prepare and issue a determination of significance (DS) substantially in the form provided in WAC 197-11-980. The DS shall contain the information as set forth in WAC 197-11-360. An environmental impact statement (EIS) shall be prepared for projects for which a DS threshold determination has been issued consistent with the appropriate sections of this chapter and referenced sections of the Washington Administrative Code.
(Ord. No. 19-03, § 7.1.10, 9-4-2019)
An environmental impact statement (EIS) is required for project and non-project actions that may have a significant adverse impact on the environment as more specifically set forth in WAC 197-11-330 and shall be prepared pursuant to WAC 197-11-400 through 197-11-460.
(Ord. No. 19-03, § 7.1.11, 9-4-2019)
(Ord. No. 19-03, § 7.1.12, 9-4-2019)
The rules for consulting, commenting, and responding on all environmental documents under the State Environmental Policy Act (SEPA), including rules for public notice and hearings, are set forth below as well as in WAC 197-11-500 through 197-11-570.
(Ord. No. 19-03, § 7.1.13, 9-4-2019)
Existing environmental documents prepared under the State Environmental Policy Act (SEPA) or the National Environmental Policy Act (NEPA) may be used for an agency's own environmental compliance in a manner consistent with WAC 197-11-164 through 197-11-172 and 197-11-600 through 197-11-640.
(Ord. No. 19-03, § 7.1.14, 9-4-2019)
(Ord. No. 19-03, § 7.1.15, 9-4-2019)
Uniform usage and definitions of terms under State Environmental Policy Act (SEPA) are set forth in WAC 197-11-700 through 197-11-792.
(Ord. No. 19-03, § 7.1.16, 9-4-2019)
The Town adopts by reference the applicable State Environmental Policy Act (SEPA) forms in substantially the form set forth in the applicable sections of the SEPA rules, WAC ch. 197-11, as now promulgated or hereafter amended, for use in carrying out local SEPA policies and procedures.
(Ord. No. 19-03, § 7.1.17, 9-4-2019)
The areas of special flood hazard identified by the Federal Insurance Administration in a scientific and engineering report entitled "The Flood Insurance Study for Spokane County, Washington and Incorporated Areas" dated July 6, 2010, and any revisions thereto, with an accompanying flood insurance rate map (FIRM), and any revisions thereto, are hereby adopted by reference and declared to be a part of this article. The flood insurance study (FIS) and the FIRM are on file at 20 West Emma, Rockford, Washington. The best available information for flood hazard area identification as outlined in RMC 13.32.380 shall be the basis for regulation until a new FIRM is issued that incorporates data utilized under RMC 13.32.380.
(Ord. No. 19-03, § 7.3.1, 9-4-2019)
In the interpretation and application of this article, all provisions shall be:
(Ord. No. 19-03, § 7.3.2, 9-4-2019)
The degree of flood protection required by this article is considered reasonable for regulatory purposes and is based on scientific and engineering considerations. Larger floods can and will occur on rare occasions. Flood heights may be increased by manmade or natural causes. This article does not imply that land outside the areas of special flood hazards or uses permitted within such areas will be free from flooding or flood damages. This article shall not create liability on the part of the Town, any officer or employee thereof, or the Federal Insurance Administration, for any flood damages that result from reliance on this article or any administrative decision lawfully made hereunder.
(Ord. No. 19-03, § 7.3.3, 9-4-2019)
A development permit shall be obtained before construction or development begins within any area of special flood hazard established in RMC 13.32.910. The permit shall be for all structures including manufactured homes, as set forth in RMC ch. 13.40, and for all development including fill and other activities, also as set forth in RMC ch. 13.40.
(Ord. No. 19-03, § 7.3.4, 9-4-2019)
Application for a development permit shall be made on forms furnished by the Town and may include, but not be limited to, plans in duplicate drawn to scale showing the nature, location, dimensions, and elevations of the area in question; existing or proposed structures, fill, storage of materials, drainage facilities; and the location of the foregoing. Specifically, the following information is required:
(Ord. No. 19-03, § 7.3.5, 9-4-2019)
The Town Council is hereby appointed to administer and implement this article by granting or denying development permit applications in accordance with its provisions.
(Ord. No. 19-03, § 7.3.6, 9-4-2019)
Duties of the Town Council shall include, but not be limited to:
(Ord. No. 19-03, § 7.3.7, 9-4-2019)
(Ord. No. 19-03, § 7.3.8, 9-4-2019)
(Ord. No. 19-03, § 7.3.9, 9-4-2019)
In all areas of special flood hazards where base flood elevation data has been provided as set forth in RMC 13.32.910 or 13.32.970(d), relating to use of other base flood data, the following provisions are required:
(Ord. No. 19-03, § 7.3.10, 9-4-2019)
In areas with base flood elevations (but a regulatory floodway has not been designated), no new construction, substantial improvements, or other development (including fill) shall be permitted within Zones AE and A1-30 on the community's FIRM, unless it is demonstrated that the cumulative effect of the proposed development, when combined with all other existing and anticipated development, will not increase the water surface elevation of the base flood more than one foot at any point within the community.
(Ord. No. 19-03, § 7.3.11, 9-4-2019)
Located within areas of special flood hazard established in RMC 13.32.910 are areas designated as floodways. Since the floodway is an extremely hazardous area due to the velocity of floodwaters that can carry debris, and increase erosion potential, the following provisions apply:
(Ord. No. 19-03, § 7.3.12, 9-4-2019)
Construction of new critical facilities shall be, to the extent possible, located outside the limits of the special flood hazard area (SFHA) (100-year floodplain). Construction of new critical facilities shall be permissible within the SFHA if no feasible alternative site is available. Critical facilities constructed within the SFHA shall have the lowest floor elevated three feet above base flood elevation or to the height of the 500-year flood, whichever is higher. Access to and from the critical facility should also be protected to the height utilized above. Floodproofing and sealing measures must be taken to ensure that toxic substances will not be displaced by or released into floodwaters. Access routes elevated to or above the level of the base flood elevation shall be provided to all critical facilities to the extent possible.
(Ord. No. 19-03, § 7.3.13, 9-4-2019)
(Ord. No. 19-03, § 7.4.01, 9-4-2019; Ord. No. 21-10, 8-4-2021)
| KEY | ||||
| E = Exempted use (subject to requirements of the underlying zoning; shoreline permits are not required) | ||||
| SD = Shoreline substantial development permit required | ||||
| CU = Conditional use permit required | ||||
| X = Prohibited | ||||
| N/A = Not applicable | ||||
| Shoreline Environmental Designation | ||||
| Shoreline Uses | Shoreline Residential | Mixed-Use | Urban Conservancy | Aquatic |
| Commercial: | ||||
| Water-dependent commercial uses | X | SD | X | CU |
| Water-related commercial uses | X | SD | X | X |
| Water-enjoyment commercial uses | X | SD | X | X |
| Non-water oriented commercial uses | X | SD | X | X |
| Industrial development: | ||||
| Water-dependent industrial uses | X | SD | X | CU |
| Water-related industrial uses | X | SD | X | X |
| Non-water oriented industrial uses | X | SD | X | X |
| Residential development: | ||||
| Single-family residences | E | E | E | X |
| Multifamily residences | SD | SD | X | X |
| Recreational development: | ||||
| Water-dependent recreation | SD | SD | SD | CU |
| Water-related recreation | SD | SD | SD | CU |
| Water-enjoyment recreation | SD | SD | SD | CU |
| Non-water-oriented recreation | SD | SD | CU | X |
| Agriculture (new) | X | E | E | X |
| In-stream structures | CU | CU | CU | CU |
| Transportation: | ||||
| New arterial streets and bridges | CU | CU | X | CU |
| New local access streets or street expansions | SD | SD | SD | X |
| Pedestrian and bicycle linkages to existing or planned transportation networks | SD | SD | SD | X |
| Maintenance roads accessory to a permitted use | SD | SD | SD | X |
| New railroad lines | X | SD | X | X |
| Expansion of existing railroad lines and bridges | X | SD | X | CU |
| Parking: | ||||
| Commercial parking or parking facility as primary use | X | X | X | X |
| Parking, accessory to a permitted use | SD | SD | SD | X |
| Utilities: | ||||
| Primary | SD | SD | CU | CU |
| Accessory | E | E | E | X |
| Routine maintenance activities | E | E | E | E |
| Shoreline Dimensional Standards:(1) | ||||
| Maximum building height | 35 feet | 35 feet | 35 feet | N/A |
| Shoreline buffer(2), (3) | 50 feet | 25 feet | 100 feet | N/A |
| Building setback from shoreline buffer | 10 feet | 10 feet | 15 feet | N/A |
| Notes: (1)Wetlands located within the shoreline jurisdiction shall comply with section 11.20.050 of the County critical areas ordinance. (2)The shoreline buffer is measured horizontally from the ordinary high water mark. (3)Shoreline buffers may be reduced via a variance if a hardship exists per RMC 13.32.980 and the property precludes, or significantly interferes with, reasonable use of the property if these buffer widths and mitigation sequencing as described in subsection (f) of this section is followed. | ||||
| KEY | ||||
| E = Exempted Use (subject to requirements of the underlying zoning; shoreline permits are not required) | ||||
| SD = Shoreline Substantial Development Permit | ||||
| CU = Conditional Use | ||||
| X = Prohibited | ||||
| N/A = Not Applicable | ||||
| Shoreline Environmental Designation | ||||
| Shoreline Modification Activity | Shoreline Residential | Mixed-Use | Urban Conservancy | Aquatic |
| Shoreline stabilization: | ||||
| "Hard," such as bulkheads | CU | CU | CU | CU |
| "Soft," such as bioengineering | SD | SD | SD | CU |
| Land disturbing activities: | ||||
| Piers and docks | SD | CU | X | CU |
| Fill: | ||||
| Fill upland of OHWM | CU | CU | CU | X |
| Fill waterward of OHWM | CU | CU | CU | CU |
| Breakwaters, jetties, groins, and weirs: | X | CU | X | CU |
| Clearing and grading | SD | SD | X | CU |
| Dredging and disposal | CU | CU | CU | CU |
| Maintenance dredging (1) | X | SD | X | SD |
| Shoreline habitat and natural systems enhancement projects | SD | SD | SD | SD |
| Notes: (1) Maintenance dredging only applies to previously dredged areas within Rock Creek. Dredging activities must be limited to the minimum extent deemed necessary. Dredging spoils shall not be deposited within shoreline jurisdiction. | ||||
(Ord. No. 19-03, § 7.4.02, 9-4-2019)
This article is adopted pursuant to the authority of the Town under RCW ch. 35.63 and in accordance with RCW ch. 36.70A, known as the Growth Management Act, and its amending legislation.
Ord. No. 19-03, § 7.2.01, 9-4-2019)
The purpose of this article is to designate, classify and protect the functions and values of existing areas and provide for public safety in a manner consistent with state law, while allowing for reasonable use of private property. By adopting the ordinance from which this article is derived, the Town acknowledges that critical areas provide a variety of important biological and physical functions that benefit the community and its residents or may pose a threat to human safety or property.
(Ord. No. 19-03, § 7.2.02, 9-4-2019)
(Ord. No. 19-03, § 7.2.03, 9-4-2019)
(Ord. No. 19-03, § 7.2.04, 9-4-2019)
Activities exempt from critical area review and reporting requirements shall be conducted consistent with performance standards identified in this article, including mitigation sequencing.
(Ord. No. 19-03, § 7.2.05, 9-4-2019)
(Ord. No. 19-03, § 7.2.06, 9-4-2019)
If critical area review is applicable to a proposed project, the Town:
(Ord. No. 19-03, § 7.2.07, 9-4-2019)
(Ord. No. 19-03, § 7.2.08, 9-4-2019)
Applicants shall demonstrate that all reasonable efforts have been made to avoid and minimize impacts to critical areas and buffers. When an activity impacting a critical area is proposed, applicants shall follow the mitigation sequencing order of preference, as follows, to ensure no net loss of function within the critical area.
(Ord. No. 19-03, § 7.2.09, 9-4-2019)
(Ord. No. 19-03, § 7.2.10, 9-4-2019)
(Ord. No. 19-03, § 7.2.11, 9-4-2019)
(Ord. No. 19-03, § 7.2.12, 9-4-2019)
(Ord. No. 19-03, § 7.2.13, 9-4-2019)
| Impact Intensity Category (Impact from Proposed Change in Land Use) | Types of Land Use |
| High impact | Commercial, industrial, and institutional |
| Residential (more than 1 unit/acre) | |
| High-intensity recreation (golf courses, ball fields, etc.) | |
| Moderate impact | Residential (1 unit/acre or less) |
| Moderate-intensity active open space (parks with biking, jogging, etc.) | |
| Paved trails | |
| Utility corridor with access/maintenance road | |
| Low impact | Passive open space (hiking, bird watching, etc.) |
| Unpaved trails | |
| Utility corridor without road or vegetation management |
| Wetland Category | Minimum Buffer Width (in feet) | ||
| Low Impact | Moderate Impact | High Impact | |
| I | 125 | 190 | 250 |
| II | 100 | 150 | 200 |
| III | 75 | 110 | 150 |
| IV | 25 | 40 | 50 |
| Disturbance | Required Measures to Minimize Impacts |
| Lights | Direct lights away from wetland. |
| Noise | Locate activity that generates noise away from wetland. |
| If warranted, enhance existing buffer with native vegetation plantings adjacent to noise source. | |
| For activities that generate relatively continuous, potentially disruptive noise, such as certain heavy industry or mining, establish an additional 10-foot-wide, heavily vegetated buffer strip immediately adjacent to the outer wetland buffer. | |
| Chemical use | Establish covenants limiting use of pesticides within 150 feet of wetland. |
| Apply integrated pest management. | |
| Stormwater runoff | Route all untreated runoff away from wetland while ensuring wetland is not dewatered. |
| Retrofit older stormwater facilities to meet current standards. | |
| Prevent channelized flow that directly enters the buffer. | |
| Infiltrate or treat, detain, and disperse into buffer new runoff from impervious surfaces and new lawns. | |
| Pets and human disturbance | Use privacy fencing or plant dense, thorny vegetation to delineate buffer edge and to discourage disturbance using vegetation appropriate for the Town. |
| Dust | Use best management practices to control dust. |
| Disruption of corridors or connections | Maintain connections to off-site areas that are undisturbed. |
| Restore corridors or connections to off-site habitats by replanting. | |
| Vegetation alteration | Protect and maintain native plant communities in buffers. |
(Ord. No. 19-03, § 7.2.14, 9-4-2019)
(Ord. No. 19-03, § 7.2.15, 9-4-2019)
| Category I | 4:1 | 8:1 | 16:1 |
| Category II | 3:1 | 6:1 | 12:1 |
| Category III | 2:1 | 4:1 | 8:1 |
| Category IV | 1.5:1 | 3:1 | 6:1 |
| Refer to Wetland Mitigation in Washington State, Part 1: Agency Policies and Guidance (state department of ecology Publication No. 06-06-011a, March 2006), for further information on wetland creation, reestablishment, rehabilitation, and enhancement. | |||
(Ord. No. 19-03, § 7.2.16, 9-4-2019)
In addition to the critical area report requirements in RMC 13.32.380, wetland reports shall include the following:
(Ord. No. 19-03, § 7.2.17, 9-4-2019)
RMC 13.32.570 through 13.32.620 apply to all clearing, uses, modifications, or development activities within designated fish and wildlife habitat conservation areas (FWHCA) and associated buffers.
(Ord. No. 19-03, § 7.2.18, 9-4-2019)
All areas meeting one or more of the following criteria, regardless of any formal identification, are hereby designated fish and wildlife habitat conservation areas (FWHCA):
(Ord. No. 19-03, § 7.2.19, 9-4-2019)
| Stream Classification | RMZ Width |
| Type S – Shorelines of the state | See SMP |
| Type F – Natural waters not classified as shorelines of the state with fish (e.g., Chester and Saltese Creeks) | 150' |
| Type Np – Non-fish, perennial | 50' |
| Type Ns – Non-fish, seasonal | 30' |
(Ord. No. 19-03, § 7.2.20, 9-4-2019)
All development and uses shall be prohibited within fish and wildlife habitat conservation areas (FWHCA) and their buffers, except when they are in accordance with RMC 13.32.590.
(Ord. No. 19-03, § 7.2.21, 9-4-2019)
(Ord. No. 19-03, § 7.2.22, 9-4-2019)
(Ord. No. 19-03, § 7.2.23, 9-4-2019)
(Ord. No. 19-03, § 7.2.24, 9-4-2019)
Article IV of this chapter is incorporated by reference herein and governs all uses, activities, and structures within special flood hazard areas.
(Ord. No. 19-03, § 7.2.25, 9-4-2019)
(Ord. No. 19-03, § 7.2.25, 9-4-2019)
RMC 13.32.660 through 13.32.690 shall apply to all clearing, uses, modifications, or development activities within or possibly impacting designated geologically hazardous areas and associated buffers.
(Ord. No. 19-03, § 7.2.26, 9-4-2019)
The following shall be exempt from the provisions of RMC 13.32.680 through 13.32.700:
(Ord. No. 19-03, § 7.2.27, 9-4-2019)
(Ord. No. 19-03, § 7.2.28, 9-4-2019)
(Ord. No. 19-03, § 7.2.29, 9-4-2019)
(Ord. No. 19-03, § 7.2.30, 9-4-2019)
(Ord. No. 19-03, § 7.2.31, 9-4-2019)