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HomeMy WebLinkAboutMEXT25-0006 DRAFT Revised COAs for Applicant ■ Butte County Department of Development Services ■ August 12, 2025 ■ ■ Revised Draft Conditions – Hayes MEXT25-0006 ■ Page 1 ■ DRAFT REVISED CONDITIONS OF APPROVAL Tentative Subdivision Map Extension / Jon Hayes, APN 047-350-066 File # MEXT25-0006: Six-year map extension application to Tentative Subdivision Map TSM22-0002 dividing a 41.57- acre parcel into twenty-five (25) parcels. The parcels will range in size from 1.0 acre to 11.84 acres. The parcel is zoned VLDR- 1 acre minimum / Suburban Residential 1-acre minimum and has a General Plan land use designation of Very Low Density Residential. Butte County Department of Development Services, Planning Division: 1. Mitigation Measure AIR-1 The following best practice measures to reduce impacts to air quality shall be incorporated by the project applicant, subject property owners, or third-party contractors during construction activities on the project site. These measures are intended to reduce criteria air pollutants that may originate from the site during the course of land clearing and other construction operations. Place a note on a separate document which is to be recorded concurrently with the map or on an additional map sheet that states: “Dust generated by the development activities shall be kept to a minimum and retained on-site. Follow the air quality control measures listed below: Diesel PM Exhaust from Construction Equipment and Commercial On-Road Vehicles Greater than 10,000 Pounds • All on- and off-road equipment shall not idle for more than five minutes. Signs shall be posted in the designated queuing areas and/or job sites to remind drivers and operators of the five-minute idling limit. • Idling, staging and queuing of diesel equipment within 1,000 feet of sensitive receptors is prohibited. • All construction equipment shall be maintained in proper tune according to the manufacturer’s specifications. Equipment must be checked by a certified mechanic and determined to be running in proper condition before the start of work. • Install diesel particulate filters or implement other CARB-verified diesel emission control strategies. • Shall not operate a diesel-fueled auxiliary power system (APS) to power a heater, air conditioner, or any ancillary equipment on that vehicle during sleeping or resting in a sleeper berth for greater than 5 minutes at any location when within 100 feet of a restricted areas. • To the extent feasible, truck trips shall be scheduled during non-peak hours to reduce perk hour emissions. Operational TAC Emissions ■ Butte County Department of Development Services ■ August 12, 2025 ■ ■ Revised Draft Conditions – Hayes MEXT25-0006 ■ Page 2 ■ • All mobile and stationary Toxic Air Contaminants (TACs) sources shall comply with applicable Airborne Toxic Control Measures (ATCMs) promulgated by the CARB throughout the life of the project (see http:www.arb.ca.gov/toxics/atcm/atcm.htm). • Stationary sources shall comply with applicable District rules and regulations. Fugitive Dust Construction activities can generate fugitive dust that can be a nuisance to local residents and businesses near a construction site. Dust complaints could result in a violation of the District’s “Nuisance” and “Fugitive Dust” Rules 200 and 205, respectively. The following is a list of measures that may be required throughout the duration of the construction activities: • Reduce the amount of the disturbed area where possible. • Use of water trucks or sprinkler systems in sufficient quantities to prevent airborne dust from leaving the site. An adequate water supply source must be identified. Increased watering frequency would be required whenever wind speeds exceed 15 mph. Reclaimed (non-potable) water should be used whenever possible. • All dirt stockpile areas should be sprayed daily as needed, covered, or a District approved alternative method will be used. • Permanent dust control measures identified in the approved project revegetation and landscape plans should be implemented as soon as possible following completion of any soil disturbing activities. • Exposed ground areas that will be reworked at dates greater than one month after initial grading should be sown with a fast-germinating non-invasive grass seed and watered until vegetation is established. • All disturbed soil areas not subject to re-vegetation should be stabilized using approved chemical soil binders, jute netting, or other methods approved in advance by the Butte County Air Quality Management District. • All roadways, driveways, sidewalks, etc. to be paved should be completed as soon as possible. In addition, building pads should be laid as soon as possible after grading unless seeding or soil binders are used. • Vehicle speed for all construction vehicles shall not exceed 15 mph on any unpaved surface at the construction site. • All trucks hauling dirt, sand, soil, or other loose materials are to be covered or should maintain at least two feet of freeboard (minimum vertical distance between top of load and top of trailer) in accordance with local regulations. • Install wheel washers where vehicles enter and exit unpaved roads onto streets, or wash off trucks and equipment leaving the site. • Sweep streets at the end of each day if visible soil material is carried onto adjacent paved roads. Water sweepers with reclaimed water should be used where feasible. ■ Butte County Department of Development Services ■ August 12, 2025 ■ ■ Revised Draft Conditions – Hayes MEXT25-0006 ■ Page 3 ■ • Post a sign in prominent location visible to the public with the telephone numbers of the contractor and the Butte County Air Quality Management District - (530) 332- 9400 for any questions or concerns about dust from the project.” All fugitive dust mitigation measures required should be shown on grading and building plans. In addition, the contractor or builder should designate a person or persons to monitor the dust control program and to order increased watering, as necessary, to prevent transport of dust offsite. Their duties shall include holidays and weekend period when work may not be in progress. The name and telephone number of such persons shall be provided to the District prior to land use clearance for map recordation and finished grading of the area. Please note that violations of District Regulations are enforceable under the provisions of California Health and Safety Code Section 42400, which provides for civil or criminal penalties of up to $25,000 per violation. Plan Requirements: The note shall be placed on a separate document which is to be recorded concurrently with the map or on an additional map sheet. This note shall also be placed on all building and site development plans. Timing: Requirements of the condition shall be adhered to throughout all grading and construction periods. Monitoring: The Butte County Department of Development Services and the Public Works Department shall ensure that the note is placed on a separate document which is to be recorded concurrently with the map or on an additional map sheet. Building inspectors shall spot check and shall ensure compliance on-site. Butte County Air Pollution Control District inspectors shall respond to nuisance complaints. 2. Mitigation Measure BIO-1 If project construction activities, including site grubbing and vegetation removal, occur during the nesting season for birds protected under the Migratory Bird Treaty Act (MBTA) and California Department Fish & Game Code (CDFC) (approximately February 1 – August 31), the project proponent shall retain a qualified biologist to perform preconstruction surveys for nesting bird species. If an active nest is discovered outside of the typical nesting season, it shall be avoided using the same avoidance measures that would be applied during the typical nesting season. Surveys to identify active bird nests shall be conducted within and 250 feet around the footprint of proposed construction site. The survey shall be conducted within 7 days prior to the initiation of construction activities. In the event that an active nest is observed, a species protection buffer shall be established. The species protection buffer will be defined by the qualified biologist based on the species, nest type and tolerance to disturbance. Construction activity shall be prohibited within the buffer zones until the young have fledged or the nest fails. Nests shall be monitored by a qualified biologist once per week and a report submitted to the Butte County Department of Development Services. Plan Requirements: Perform protocol-level surveys for migratory birds protected by the California Department Fish & Game Code and the Migratory Bird Treaty ■ Butte County Department of Development Services ■ August 12, 2025 ■ ■ Revised Draft Conditions – Hayes MEXT25-0006 ■ Page 4 ■ Act. This measure shall be recorded on an additional map sheet to the Parcel Map. Timing: Requirements of the condition shall be adhered to prior to and during construction activities planned to occur during nesting seasons for CDFC and MBTA species (between February 1 and August 31). If an active nest is discovered outside of the typical nesting season, it shall be avoided using the same avoidance measures that would be applied during the typical nesting season. Monitoring: The Butte County Department of Development Services and the Public Works Department shall ensure that the note is recorded an additional map sheet of the Parcel Map. Department of Development Services shall ensure the condition is met at the time of construction activities. 3. Mitigation Measure CUL-1 If grading activities reveal the presence of prehistoric or historic cultural resources (i.e., artifact concentrations, including arrowheads and other stone tools or chipping debris, cans glass, etc.; structural remains; or human skeletal remains) work within 50 feet of the find shall immediately cease until a qualified professional archaeologist can be consulted to evaluate the find and implement appropriate mitigation procedures. If human skeletal remains are encountered, State law requires immediate notification of the County Coroner (530.538.7404). If the County Coroner determines that the remains are in an archaeological context, the Native American Heritage Commission in Sacramento shall be notified immediately, pursuant to State Law, to arrange for Native American participation in determining the disposition of such remains. The provisions of this mitigation shall be followed during construction of all improvements, including land clearing, road construction, utility installation, and building site development. Plan Requirements: This note shall be placed on a separate document which is to be recorded concurrently with the map or on an additional map sheet and shall be shown on all site development and building plans. Timing: This measure shall be implemented during all site preparation and construction activities. Monitoring: The Department of Development Services and/or Public Works Department shall ensure the note is placed on a separate document which is to be recorded concurrently with the map or on an additional map sheet. Should cultural resources be discovered, the landowner shall notify the Planning Division and a professional archaeologist. The Planning Division shall coordinate with the developer and appropriate authorities to avoid damage to cultural resources and determine appropriate action. State law requires the reporting of any human remains. Butte County Public Health Department, Environmental Health Division 4. Show Minimal Useable Wastewater Area (MUWA) as follows: a. 12,000 square feet for standard gravity for resultant parcels 2,3,4,9. b. 15,000 square feet for standard gravity for resultant parcels 5,6,8. c. 15,000 square feet for pressure distribution to 18-inch trench depth for resultant ■ Butte County Department of Development Services ■ August 12, 2025 ■ ■ Revised Draft Conditions – Hayes MEXT25-0006 ■ Page 5 ■ parcels 17.18.19.20.21, 22. 5. Record deed restriction and appropriate easements indicating "Lot B" as community leach area. 6. Destroy well on lot 14 or provide alternative 15,000 square foot MUWA on parcel 5 and 6 due to 100 foot well setback encroachment. 7. Prior to recording the Final Map, provide a legal entity that is adequate to ensure the operation, maintenance, or repair of the sewage collection, treatment and disposal facilities meeting the following: a. Insure financing of operation, repair, and maintenance. b. Provide qualified individuals and operational procedures for facility operations, repair, and maintenance. c. Provide adequate resources to comply with all monitoring and other California Regional Water Quality Control Board Waste Discharge Requirements. d. Provide adequate resources for facility inspections and reports. e. Provide adequate resources and/or mechanisms to insure adequate funding of a major sewage treatment and disposal facility and replacement or construction of that facility. f. Indemnify the County of Butte or other government entity for all claims and liability that may occur relative to the sewage disposal facilities. 8. Provide proof of potable water by drilling at least one test well for each twenty acres and tested for quality and quantity. a. Quality - provide results for total and fecal coliform and nitrate. b. Quantity - Test wells shall be pumped in a manner satisfactory to the Health Department and shall produce a minimum of five (5) gallons per minute if tested during the period from January 1 through June 30 or a minimum of three (3) gallons per minute if tested during the period from July 1 through December 31. 9. Show well location on each parcel indicating 100-foot radius and illustrating 100-foot setback from leach trenches to wells as well as appropriate setbacks from proposed detention pond. Place a note on map: 10. Resultant parcels 7, 10, 11,12,13,14,15,16, 23, 24, 25 to be served by a community leach area requiring individual septic tanks under permit from Butte County Public Health, Environmental Health Division. Agricultural Commissioner’s Office: 11. A 300 ft. Agricultural Buffer setback is applicable from APN 047-250-044 to be recorded on the final map. The setback will be noted as follows: “300-foot Agricultural Buffer Setback, no residential development permitted.” Butte County Fire Department: 12. Construction, installation or development of buildings and/or roads, driveways, ■ Butte County Department of Development Services ■ August 12, 2025 ■ ■ Revised Draft Conditions – Hayes MEXT25-0006 ■ Page 6 ■ gates and bridges on parcels/lots shall comply with the current adopted California Building Standard Codes and current Butte County Improvement Standards, whichever is stricter. 13. Prior to construction, a pressurized community water system for fire protection is required. Bonding may be allowed with the approval of the County Fire Chief. Average required hydrant spacing is 500 feet (reduce by 100 feet on dead-end streets and roads), hydrant size 6 inches, and residual fire flow of 1000 GPM. Fire hydrant identification, road reflectors or post reflectors acceptable to the County Fire Chief shall be installed or bonded, prior to Parcel or Final map recordation. Submit plans to the Fire Department for review and approval prior to construction. Local water agency requirements for hydrants may be more restrictive. 14. Use of a private water system for fire protection purposes will require one of the following acceptable entities to maintain the system; Formation of a Mutual Water Company, Formation of a new County Service area, Annexation to an existing County Service Area with the same level of service or Establishment of another entity as approved by the Butte County Fire Department. All new water systems must be constructed to the same standards as the nearest local water purveyor (Mutual Water Company or Public Utility such as Cal-Water, OWID, TWSD, etc.) to allow for possible future annexation and connection of mains. 15. Prior to building construction, provide an all-weather access of at least 10 feet wide for residential, and 20 feet wide for commercial, and vertical clearance of 15 feet that will allow for ingress and egress and accommodate a 40,000-pound fire apparatus to within 150 feet of any point on all structures. 16. Place a note on a separate document, which is to be recorded concurrently with the Parcel or Final map, or on an additional map sheet stating, “Building identification and/or addresses shall be installed in conformance with Public Resources Code 4290 and shall be posted at the time of permit issuance and maintained continuously thereafter. Public Works Conditions: A. STREETS 17. Road Maintenance: Prior to the recordation of the final map, provide a fully executed road maintenance agreement for all non-publicly maintained access roads on the county-approved form. A note shall be placed on a separate document, which is to be recorded concurrently with the map or on an additional map sheet of the final map stating: "In accordance with Civil Code Section 845, maintenance of the road as shown hereon shall be shared by those properties with a legal interest in it." Prior to map recordation, the applicant shall establish a Homeowners’ Association (HOA) or other County-approved entity for road maintenance. 18. Street Names and Signs: Prior to recordation of the final map, provide street name signs per requirements of the Department of Public Works. Street names shall be reviewed by the county address coordinator, and one name for each new street shall ■ Butte County Department of Development Services ■ August 12, 2025 ■ ■ Revised Draft Conditions – Hayes MEXT25-0006 ■ Page 7 ■ be recommended to the Board of Supervisors for approval prior to recordation of the final map. A minimum of five alternate names for each new street shall be submitted. 19. Traffic Signs: Prior to final road inspection, install all necessary traffic safety signs including stop signs. 20. Encroachment Permit: Prior to any work within the County right of way, the applicant shall obtain an encroachment permit from the County, which includes a Traffic Control Plan showing all public roadways where work is to be performed and indicates each stage of work, closure dates for street and section of closure (if necessary and otherwise allowed by local jurisdiction), signage, flaggers, and any other pertinent information. The Traffic Control Plan shall be reviewed and approved by the County before the contractor begins work. 21. Driveways: Prior to recordation of the final map, obtain an encroachment permit and improve all new and existing driveway approaches to publicly maintained roads as specified in the county improvement standards and the terms of the encroachment permit, and as shown in the recorded map at approved access points. Provide common access to Lots 2 and 4, and Lots 5 and 6, from Keefer Road. All driveways, including for Lot 7, shall meet sight distance standards. 22. Road Approaches: Prior to recordation of the final map, submit road and drainage improvement plans to the Butte County Land Development Division for the installation of a standard S-18B road approach from Keefer Road to Kelsey Drive in accordance with County improvement standards. Obtain an encroachment permit and construct the road approach prior to recordation of the final map. Adequate sight distance at the intersection of access road and Kelsey and Keefer Roads shall be provided. Right-of-way required for construction of road approach and roadside drainage shall be provided. 23. Cul-de-Sacs/Turnarounds: Provide cul-de-sacs or building free turn around area designed and constructed as specified in the County improvement standards. The final map shall show the cul-de-sac or building free turn around area. 24. Frontage Improvements: Prior to recordation of the final map, remove the frontage improvements on Keefer Road that are shown on the Tentative Final Map. No frontage improvements are required on Keefer Road. Prior to recordation of the final map, construct or provide a performance, labor and material bond for construction of street frontage improvements on Kelsey Drive. Construct a full width street section along the parcel frontage of Lots 8, 9, 10, 25, and Lot B with Kelsey Drive in conformance with County improvement standard NCSP-8, 2” Type B Hot Mix Asphalt, 8” Class AB, prime coat, fog seal, and 95% relative compaction. Construct a ½ + 12’ street section along the remainder of the project frontage with Kelsey Drive in conformance with County improvement standard NCSP-8, 2" Type B Hot Mix Asphalt, 8" Class 2 AB, prime coat, fog seal and 95% relative compaction. Submit for approval a roadway structural design and improvement plans to the Land Development Division prior to construction. An “R” value determination and other data may be required to support the section design. Submit a Notice of Materials to be Used, materials test results, and mix design in compliance with 2018 Caltrans ■ Butte County Department of Development Services ■ August 12, 2025 ■ ■ Revised Draft Conditions – Hayes MEXT25-0006 ■ Page 8 ■ Standard Specifications, Section 39, to the department of Public Works for approval at least 14 days prior to the start of paving operations. Testing of hot mix asphalt materials shall be performed by a qualified laboratory and test results shall be signed and stamped by a licensed civil engineer. Conduct material testing during construction and submit the results to Department of Public Works to ensure compliance with Standard Specifications, approved materials, and approved mix design. 25. Interior Streets: Prior to recordation of the final map, construct or provide a performance, labor and material bond for construction of interior streets in conformance with county improvement standard NCSP-10, 2" Type B Hot Mix Asphalt, 8" Class 2 AB, prime coat, fog seal and 95% relative compaction. Submit for approval a roadway structural design and improvement plans to the Land Development Division prior to construction. An “R” value determination and other data may be required to support the section design. Submit a Notice of Materials to be Used, materials test results, and mix design in compliance with 2018 Caltrans Standard Specifications, Section 39, to the department of Public Works for approval at least 14 days prior to the start of paving operations. Testing of hot mix asphalt materials shall be performed by a qualified laboratory and test results shall be signed and stamped by a licensed civil engineer. Conduct material testing during construction and submit the results to Department of Public Works to ensure compliance with Standard Specifications, approved materials, and approved mix design. 26. Security for Improvements: Per Butte County Code of Ordinances 20-69(5), if the subdivider desires to submit security in lieu of a bond, such security shall be submitted to the director of public works for approval not later than two (2) weeks prior to submission of the final subdivision map. 27. Street Lighting: Street lighting shall be provided per Butte County requirements, accepted design criteria, and recommendations of Pacific Gas & Electric Company through an HOA or other County-approved entity. If street lighting costs are funded through an HOA, the developer must complete the formation of the HOA and record the HOA Covenants, Conditions & Restrictions (CC&Rs) that describe the street lighting costs and services before the recordation of the final map. The formation process will require the developer to fund the service until the beginning of the first fiscal year in which service charges can be collected, and to agree to an annual maximum service charge to ensure the continued operation of the facilities. B. STREETS 28. Soils Report: Prior to map recordation, a preliminary soils report prepared by a registered design professional and based upon adequate testing shall be submitted to the Department of Public Works Land Development Division and Department of Development Services Building Division for review and approval. 29. Drainage Report and Improvements: Prior to the recordation of the final map an engineered plan for a permanent solution for drainage shall be submitted to and approved by the Department of Public Works. All improvements shall be ■ Butte County Department of Development Services ■ August 12, 2025 ■ ■ Revised Draft Conditions – Hayes MEXT25-0006 ■ Page 9 ■ constructed prior to final map recordation. The following must be complete during final design: • Travel paths must be shown where concentrated flows exist. • Times of concentration for each structure, pipe, or ditch. • The quantity of water arriving at each structure, pipe or ditch from a 10-year and a 100-year frequency storm. • Invert elevations for each pipe and structure. • Hydraulic grade line elevations and hydraulic gradient. • Channel dimensions and water surface profile computations. • Downstream conditions which may affect upstream flow. The drainage plans shall specify how stormwater runoff will be attenuated on site by detention facilities and/or conveyed to the nearest natural or publicly maintained drainage channel or facility and shall provide developed-condition peak flow discharge not greater than the pre-development condition for all storm events, and no increase in stormwater volume over the design storm duration to said channel or facility. The storm drain system shall be designed for a full range of storm water runoff, up to and including the 100-year storm. On-site disposal shall be interim and coordinated with an ultimate storm drainage disposal design. The system shall be design in accordance with Butte County Improvement Standards Section 10.05 Drainage Design and 10.10 Temporary Storm Drainage Trenches, and other applicable sections. 30. Drainage Improvements – Kelsey Drive: Prior to the recordation of the final map, extend the underground storm drain system approximately 90 feet northerly to the westerly extension of the southerly property line to collect offsite drainage. 31. Drainage Improvements – Easterly Project Boundary: Prior to the recordation of the final map, the project shall grade a portion of the site to allow passage of off-site stormwater drainage to continue the historic flow. Grading shall occur from the existing culverts located along the easterly boundary of the project and continue along the southern boundary of the project to Kelsey Drive. A stormwater drainage easement shall be established for the maintenance of the drainage facilities. Stormwater drainage maintenance services shall be provided by an HOA or other County-approved entity. ■ Butte County Department of Development Services ■ August 12, 2025 ■ ■ Revised Draft Conditions – Hayes MEXT25-0006 ■ Page 10 ■ 32. Drain Inlet Markers: Prior to final improvement inspection by the Department of Public Works, all new drain inlets shall be labeled with the county-approved drain marker per county standard S-40. Improvement plans shall show and/or note the requirements for labeling inlets pursuant to county standard S-40. 33. Stormwater Quality Management for MS4 Area: a. Construction Phase: Prior to issuing a grading or a building permit, or prior to approval of improvement plans, submit an erosion and sediment control plan (ESCP) to Public Works department for approval. ESCP shall contain site-specific construction site Best Management Practices (BMPs). BMPs included in the ESCP must be in accordance with Section 50-19 of County Code, and/or consistent with the California Stormwater Quality Association BMPs. Revisions to an approved ESCP must be resubmitted for Department of Public Works approval prior to commencing with site work. A Storm Water Pollution Prevention Plan (SWPPP) developed pursuant to the construction stormwater general permit (CGP) may be submitted in lieu of the ESCP. Add a note on a map sheet that states: “Development activities resulting in soil disturbance shall submit an erosion and sediment control plan (ESCP) to the Department of Public Works for approval. ESCP shall contain appropriate site-specific construction site BMPs.” b. Construction Phase: Coverage under the stormwater Construction General Permit (CGP) will be required by the State Water Resources Control Board if development activities result in ground disturbance, including clearing, excavation, filling, and grading of one or more acres or disturb less than one acre but are part of a larger common plan or development. Coverage under this General Permit must be obtained from the State Water Resources Control Board prior to starting construction. If coverage under the CGP is required, engineering plans shall show the Waste Discharge Identification (WDID) number on the title sheet of the plans and a copy of Storm Water Pollution Prevention Plan (SWPPP) shall be provided to the Land Development Division of the Public Works ■ Butte County Department of Development Services ■ August 12, 2025 ■ ■ Revised Draft Conditions – Hayes MEXT25-0006 ■ Page 11 ■ Department. Submit with improvement or grading plans the estimated areas to be disturbed to the Department of Public Works for consistency with the SWPPP. Additionally, place a note on a map sheet that states: “The development of this parcel (or subdivision) map required coverage under the Stormwater Construction General Permit. Construction activities that result in a land disturbance of less than one acre, but which are part of a larger common plan of development, also require coverage under this permit. Development of individual lots may require an additional permit coverage.” c. Post Construction: Implement post-construction Best Management Practices (BMPs) consistent with State Water Resources Control Board Order 2013-0001-DWQ to control the volume, rate, and potential pollutant load of stormwater runoff, including, but not limited to, requirements to minimize the generation, transport and discharge of pollutants. Develop and submit a Post Construction Stormwater Management Plan (PCSMP) that identifies BMP stormwater treatment system(s) designed to reduce or eliminate stormwater pollutant discharges through the construction, operation and maintenance of source control measures, low impact development design, site design measures, stormwater treatment system(s) and/or hydromodification measures. Design and sizing requirements shall comply with the Post-Construction Stormwater Management Program (section E.12) requirements of State Water Resources Control Board Order 2013-0001-DWQ. Hydromodification measures are required for Regulated Projects that create and/or replace one acre or more of impervious surface. The Department of Public Works approval of the PCSMP is precedent to improvement plan approval. Regulated projects are defined in State Water Resources Control Board Order 2013-0001-DWQ and are generally considered as new and redevelopment projects on public or private land that fall under the planning and permitting authority of the and are within the MS4 area that create or replace greater than or equal to 5,000 square feet of impervious area, excluding: a) detached single family residences that are not part of a common plan of development; b) interior remodels; c) routine maintenance or repair; or d) a Linear Underground/Overhead Utility Projects unless the project has a discrete location of that has 5,000 square feet or more of newly constructed contiguous impervious area. d. Post Construction: Prior to improvement plan approval, Regulated Projects shall submit a Stormwater Facilities Operations and Maintenance (O&M) Plan that identifies the operations, maintenance, and inspection requirements of all stormwater Best Management Practices (BMPs) treatment system(s) and hydromodification measures identified in the approved PCSMP. All public and private stormwater treatment system(s) and hydromodification measures shall be protected, inspected, and maintained to ensure continuous and fully effective performance as designed. A maintenance and inspection schedule for both dry and wet season BMPs shall be in writing, and a record shall be kept that includes the dates of inspection or maintenance, whether BMPs were inspected or maintained, a description of any maintenance activity, and the name of the inspector or maintenance foreman. Place a note on a map sheet to state: “The owners or operators of facilities required to implement post-construction BMPs ■ Butte County Department of Development Services ■ August 12, 2025 ■ ■ Revised Draft Conditions – Hayes MEXT25-0006 ■ Page 12 ■ shall form a Homeowners Association for maintenance of such features. Regulated Projects shall grant site access to Butte County or other formal maintenance entity for the sole purpose of implementing and performing measures in the O&M plan for the installed stormwater treatment system(s) and hydromodification measures.” e. Post-Construction: Stormwater Trash Treatment Control Devices BMPs: Prior to final improvement inspection, install stormwater trash treatment control devices (Devices). Devices installed shall meet Full Capture System requirements and shall be designed in accordance with the following criteria: i. Appropriately sized to treat not less than the peak flowrate resulting from a 1-year, 1-hour storm event (design storm) or at least the same peak flows from the corresponding storm drain; ii. Do not bypass trash below the design storm under maximum operational loading conditions; and iii. Trap all particles that are 5 mm or greater up to the design flow or at least the same peak flows from the corresponding storm drain; and do not have a diversion structure present upstream such that a portion of the peak flow is not treated to trap all particles 5 mm or greater. Location(s) and specifications of devices selected shall be shown on improvement plans. Devices shall be certified by the State Water Resources Control Board prior to installation. Prior to installation of any certified Devices, the local mosquito vector control district should be contacted to ensure the installation conforms to the District’s visual inspection, treatment, and vector breeding minimizing guidelines. Devices shall be protected, inspected, and maintained to ensure continuous and fully effective performance as designed. C. COUNTY SERVICE AREA 34. CSA Formation for Maintenance of Drainage, Sewage, and Stormwater Quality Facilities: Prior to map recordation, the applicant shall form a County Service Area (CSA) as required by County Code for operations and maintenance of the sewage, drainage, and stormwater quality facilities. The formation process will require the developer to fund the service until the beginning of the first fiscal year in which service charges can be collected and to agree to an annual maximum service charge to ensure continued operation of the facilities. D. FINAL MAP 35. Map Recordation: a. The applicant shall submit to the County Surveyor for review and approval a final map pursuant to Subdivision Map Act Section 66444-66450. ■ Butte County Department of Development Services ■ August 12, 2025 ■ ■ Revised Draft Conditions – Hayes MEXT25-0006 ■ Page 13 ■ b. The applicant shall prepare a Supplemental Data Sheet for all information not affecting record title interest. The Supplemental Data Sheet shall contain a statement that the additional information, conditions of approval or comments are for informational purposes only and are not intended to affect record title interest. Additional information may include but is not limited to building setback lines, flood hazard zones, seismic lines and setbacks, leach field free areas and usable sewage disposal areas. c. The applicant shall show all easements of record on the on the final map. d. The applicant shall pay in full any and all delinquent, current and estimated taxes and assessments as specified in Article 8 of Chapter 4 of Division 2 of Title 7, of the California Government Code commencing with Section 66492. A tax certificate is to be provided to the County Surveyor prior to recording. e. The applicant shall pay the recording fees in effect at the time the final map and related documents are recorded. 36. Offers of Dedication and Easements: a. All access rights shall be reserved by deed per county ordinance, offered for dedication, and depicted on the final map. Place the following note on the final map: “Approved road name is a non-exclusive easement for ingress, egress, road and public services purposes, to be reserved in deeds and is hereby offered for dedication to the County of Butte.” b. Prior to or concurrently with the recordation of the final map, deed to Butte County in fee simple 40 feet of right-of-way from the centerline of Keefer Road along the entire property frontage. The right-of-way shall be sufficient for the installation of Improvement Standard No. S-5 at all street intersections. Prior to recordation of the final map, dedicate a one-foot No Access Easement or relinquish abutter's rights of access to Butte County along the Keefer Road frontage of Lots 1, 2, 4, 5, and 6, except at approved access points for shared driveways between Lots 2 and 4, and between Lots 5 and c. Prior to recordation of the final map, the applicant shall modify the final map to provide shared driveway easements between Lots 2 and 4, and between Lots 5 and 6. d. Drainage, sewage, and other utility easements shall be provided where they are needed. The subdivider shall provide rights-of-way or easements for storm drainage purposes conforming substantially with the lines of any watercourse, channel, lake, stream, or creek, and drainage improvements. The width of the rights-of-way or easements shall be adequate to provide for the necessary maintenance of the channels and incidental structures. 37. Fees and Assessments: a. Prior to map recordation, pay North Chico Specific Plan Area development impact fees per Article XVII, Chapter 3 of Butte County Code. b. Prior to map recordation, pay drainage impact fees per Article XI, Chapter 3 of Butte County Code. c. Prior to map recordation, pay all applicable assessments established by ■ Butte County Department of Development Services ■ August 12, 2025 ■ ■ Revised Draft Conditions – Hayes MEXT25-0006 ■ Page 14 ■ affected assessment districts, in full. Airport Land Use Compatibility Conditions: 38. Place a note on a separate document which is to be recorded concurrently with the final map or on an additional map sheet that states: “Record an open space/land use easement outside of the designated residential development area on proposed Lot 1 to the City of Chico or other appropriate agency for the Chico Regional Airport. This open space/land use easement is designated to comply with the 2017 Butte County Airport Land Use Compatibility Plan. This area shall remain free of structures and other major obstacles such as walls, large trees, or poles (greater than 4 inches in diameter, measured 4 feet above the ground), and overhead wires, except for structures and other obstacles in those locations which already exist." Permitted uses with the open space area will be designated by the Butte County Airport Land Use Commission (ALUC) for the Chico Regional Airport. The easement will be in effect as long as the airport remains in operation or the ALUC deems it necessary.” 39. Place a note on a separate document which is to be recorded concurrently with the final map or on an additional map sheet that states: “No residential dwellings, large trees or poles (greater than 4 inches in diameter, measured 4 feet above the ground, except for a six-foot-high chain link security fence around the detention pond), and overhead wires permitted on proposed Lot C as long as the airport remains in operation.” 40. Place a note on a separate document which is to be recorded concurrently with the final map or on an additional map sheet that states: “Proposed Lot B is designated as a community septic area and no residential dwellings, trees greater than 4 inches in diameter, overhead wires, and structures over 4 feet in height permitted on proposed Lot B as long as the airport remains in operation.” 41. Place a note on a separate document which is to be recorded concurrently with the final map or on an additional map sheet that states: “Residences and all buildings shall be located as far as practical from the Chico Regional Airport extended runway centerline.” 42. Provide a deed notice for the sale of all resulting lots notifying purchasers of the proximity of the airport and the potential for possible noise related impacts in an ALUC- approved disclosure notice. 43. Prior to the recordation of the Final Map record as a separate instrument an Avigation Easement granting the right of continued use of the airspace above the proposed parcels by the Chico Regional Airport and acknowledging any and all existing or potential airport operational impacts. 44. Place a note on a separate document which is to be recorded concurrently with the final map or on an additional map sheet that states: “An Avigation Easement is recorded above the parcels for the Chico Regional Airport and acknowledging any and all existing or potential airport operational impacts.” 45. Place a note on a separate document which is to be recorded concurrently with ■ Butte County Department of Development Services ■ August 12, 2025 ■ ■ Revised Draft Conditions – Hayes MEXT25-0006 ■ Page 15 ■ the final map or on an additional map sheet that states: “As a condition for the issuance of any Building Permit on these parcels Minimum Noise Level Reduction of 20 decibel (dB) is required for construction of all residences.” 46. Place a note on a separate document which is to be recorded concurrently with the final map or on an additional map sheet that states: “Airspace review by the Airport Land Use Commission is required for all objects over 70 feet in height.”