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HomeMy WebLinkAboutTSM20-0002-PC COA_Approved◼Butte County Department of Development Services ◼ ◼ November 10, 2022 ◼ Conditions of Approval – Butte Vista Estates TSM20-0002/Robb Brown ◼ Page 1 ◼ EXHIBIT A Tentative Subdivision Map (Butte Vista Estates) for Robb Brown on APN: 031-190-034; File # TSM20-0002: Tentative Subdivision Map subdividing 9.7 acres, situated in the MDR (Medium Density Residential, 6,000 square foot minimum) zone. The Project creates forty (40) single-family residential lots, ranging in size from 6,500 to 11,873 square feet. Future development of single-family residences will be consistent with the MDR zoning designation. Access to the lots will be via a new road, accessed off Plumas Avenue. Thermalito Water and Sewer District will provide domestic water and sewer service to the lots. The project site is located on the north side of Plumas Avenue, between 10th Street and Hardnett Court, Thermalito, in the unincorporated area of Butte County. Assessor Parcel Number: 031-190-034. I.CONDITIONS OF APPROVAL: Planning Division, Department of Development Services 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. November 10, 2022 ◼ Butte County Department of Development Services ◼ ◼ November 10, 2022 ◼ Conditions of Approval – Butte Vista Estates TSM20-0002/Robb Brown ◼ Page 2 ◼ Operational TAC Emissions • 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 revegetation 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. ◼ Butte County Department of Development Services ◼ ◼ November 10, 2022 ◼ Conditions of Approval – Butte Vista Estates TSM20-0002/Robb Brown ◼ Page 3 ◼ • 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. • 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 onsite. 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. ◼ Butte County Department of Development Services ◼ ◼ November 10, 2022 ◼ Conditions of Approval – Butte Vista Estates TSM20-0002/Robb Brown ◼ Page 4 ◼ Plan Requirements: Perform protocol-level surveys for migratory birds protected by the California Department Fish & Game Code and the Migratory Bird Treaty 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 BIO-2 Place the following note to be recorded on an additional map page of the Parcel Map that states: “Prior to any development activity or the issuance of any permit or approval removing or encroaching upon oak trees on the project site (this generally includes the canopy drip-line of trees within the area of ground disturbance and trees subject to changes in hydrologic regime), the applicant/developer shall complete one of the following measures to the satisfaction of the Director of Development Services or is/her designee: A. An Oak Tree Evaluation Plan shall be prepared for areas that are proposed for development (e.g., dwelling, accessory structures, yards, driveways) by a qualified professional having experience in California Oak Woodlands and is either a certified arborist, qualified wildlife biologist or registered professional forester shall be submitted for review and approval by the Director of Development Services or his/her designee that includes the following: 1) A survey showing the location of oak trees 5 inches or more in diameter at breast height, as defined by PRC §21083.4(a); 2) The removal of all oak trees 5 inches or more in diameter at breast height shall be mitigated. It shall be mitigated by one or more of the following: replanting and maintaining oak trees, establishing conservation easements, contributing funds for off-site oak woodlands conservation, and/or other mitigation measures developed by Butte County. Replanting oak trees cannot account for more than one-half of the mitigation. Replanted oak trees shall be maintained for a period of seven years after they are planted. If any of the replanted oak trees die or become diseased, they shall be replaced and maintained for seven years after the new oak trees are planted; 3) A replanting schedule and diagram for trees removed or encroached upon by permit activities consistent with PRC §21083.4(b)(2), applicable mitigation measures, and Butte County Ordinance, if any, shall be submitted to and approved by the Director of Development Services or his/her designee. Replanted trees shall be planted in areas deemed appropriate by the Plan, considering future lot development, interference with foundations, fencing, roadways, driveways, and utilities. Trees planted shall be protected from livestock and other animals; 4) Oak Tree protection measures for trees to be retained within the project site shall be included in construction specifications. Prior to construction or surface disturbance, a protective fence ◼ Butte County Department of Development Services ◼ ◼ November 10, 2022 ◼ Conditions of Approval – Butte Vista Estates TSM20-0002/Robb Brown ◼ Page 5 ◼ or brightly colored staked boundary shall be placed 5 feet beyond the established critical rooting zone (CRZ) of the oak or group of oaks being protected. A warning sign shall be prominently displayed on each fence. The sign should be a minimum of 16 x 24 inches, brightly colored and be clearly visible, even from vehicles. The sign must clearly indicate that the CRZ is a restricted area. Orange safety triangles may suffice if other signage cannot be constructed. A high visibility plastic mesh fence is recommended to maximize the visibility of protected tree areas. Wire with bright-colored flags placed at equal intervals can also be a suitable barrier so long as it maintains high visibility. Protective fencing shall remain in place until final inspection by the qualified professional. No vegetation removal, soil disturbance, or other development activities shall occur within the tree zone in order to protect root systems and minimize compaction of the soil, unless authorized by Oak Tree Mitigation Plan; and 5) Conservation easements or funds for off-site oak woodlands conservation shall be proposed to and approved by the Director of Development Services or his/her designee; or B. Provide proof of compliance with the adopted Butte County Oak Woodland Mitigation Ordinance currently under preparation; or C. Provide proof of compliance with all required avoidance and minimization measures, and payment of all applicable fees to mitigate for blue oak woodland impacts as provided in the Butte Regional Conservation Plan, as adopted by Butte County. Plan Requirements: No vegetation removal, grading, road construction, or other earthwork resulting in the removal or encroachment upon oak trees on the project site shall be permitted until the mitigation measure is satisfied by the applicant/developer completing one of the specified measures to the satisfaction of the Director of Development Services or their designee. Timing: Requirements of the condition shall be satisfied prior to any development activity or the issuance of any grading, building, septic, or well permit, or the approval of any improvement plans on the parcels. Monitoring: The Butte County Department of Development Services and Department of Public Works 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. At the time of septic, well, or building permit application, the Development Services Department will reference this requirement on any grading, building, septic, or well permit site plans and verify that an Oak Tree Mitigation Plan has been submitted to and approved by the Director of Development Services or his/her designee. Butte County building inspectors shall ensure compliance on-site. 4. Mitigation Measure CUL-1 Place a note on a separate document which is to be recorded concurrently with the map or on an additional map sheet that states: “Should development activities reveal the presence of cultural resources (i.e., artifact concentrations, including arrowheads and other stone tools or chipping debris, cans, glass, etc.; structural remains; human skeletal remains), work within 50 feet of the find shall cease immediately until a qualified professional archaeologist can be consulted to evaluate the remains and implement appropriate mitigation procedures. Should human skeletal remains be encountered, state law requires immediate notification of the county coroner. Should the county coroner determine that ◼ Butte County Department of Development Services ◼ ◼ November 10, 2022 ◼ Conditions of Approval – Butte Vista Estates TSM20-0002/Robb Brown ◼ Page 6 ◼ such 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.” Plan Requirements: The required note shall be placed on a separate document which is to be recorded concurrently with the map or on an additional map sheet and on all building and site development plans. Timing: This measure shall be implemented during all site preparation and construction activities. Monitoring: The Department of Public Works and the Department of Development Services shall ensure that the required 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 Department of Development Services shall coordinate with the developer and appropriate authorities to avoid damage to cultural resources and determine appropriate action. 5. Mitigation Measure NOI-1 Place the following note on a separate document which is to be recorded concurrently with the map or on an additional map sheet that states: “To reduce construction-generated noise the developer shall implement the following measures to mitigate construction noise throughout all construction periods: 1. Limit construction activity to daytime hours (7:00 a.m. to 5:00 p.m.) with no construction activity on Sundays or holidays; 2. Use best available noise suppression devices and properly maintain and muffle diesel engine-driven construction equipment; 3. Construction equipment shall not be idled for long periods of time; 4. Locate stationary equipment as far as possible from sensitive receptors; 5. Designate a Disturbance Coordinator and post the name and phone number of this person conspicuously at the entrance(s) to the project site so it is clearly visible to nearby residents most likely to be affected by construction noise. This person would manage complaints resulting from construction noise. The Disturbance Coordinator shall contact noise sensitive receptors and advise them of the schedule of construction.” 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: The mitigation shall be applicable during all construction activities. Monitoring: The developer and the Disturbance Coordinator shall be responsible for ensuring compliance with this mitigation and shall respond to all complaints of noise. Department of Development Services shall investigate all complaints of excess construction-related noise. 6. The collection of fees pursuant to Fish and Game Code Section 711.4 is required prior to filing a CEQA Notice of Determination for the Project unless the project proponent provides verification from the California Department of Fish and Wildlife the Project is exempt from the fee requirement. If a required fee is not paid for a project, the Project will not be operative, vested or final, and any local permits issued for the Project will be invalid (Section 711.4 (c) (3)). ◼ Butte County Department of Development Services ◼ ◼ November 10, 2022 ◼ Conditions of Approval – Butte Vista Estates TSM20-0002/Robb Brown ◼ Page 7 ◼ 7. Prior to recordation of the Final Map, pay any outstanding project-related processing fees. 8. All new exterior lighting on the resultant parcels shall comply with Chapter 24, Section 67 of the Butte County Code, Outdoor Lighting Standards. Exterior lighting shall be located, adequately shielded, and directed such that no direct light falls outside the property line or into the public right-of-way. Flashing, flickering, or other lighting that is distracting or may be confused with traffic or emergency signals shall be prohibited. 9. Prior to recordation of the Final Map, the property owner shall record a declaration acknowledging the right to farm, pursuant to Chapter 35 of the Butte County Code (Agricultural Statement of Acknowledement). Land Development Division, Department of Public Works Streets 10. 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.” 11. Prior to the 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 be recommended to the Board of Supervisors for approval prior to the recordation of the final map. A minimum of five alternate names for each new street shall be submitted. 12. Prior to the final road inspection, install all necessary traffic safety signs including stop signs. 13. Prior to the recordation of the final map, submit subdivision improvement plans that include lot grading, road, and drainage improvement plans to the Land Development Division in accordance with County improvement standards and, as applicable, the City of Oroville Improvement Standards. 14. Obtain an encroachment permit for work to be performed in the County right of way. 15. Provide a cul-de-sac or building-free turnaround area designed and constructed as specified in the City of Oroville Standard for Residential Cul-de-sac. The final map shall show the cul-de-sac or building- free turnaround area. 16. Prior to the recordation of the final map, construct or provide a performance, labor, and material bond for the construction of street frontage improvements on Plumas Ave. Construct improvements along the entire parcel frontage (including street frontage of Assessor’s Parcels #031-190-034, 031-190-011 and 031-190-035) in conformance with the City of Oroville Standard for Residential Streets. 17. Prior to the recordation of the final map, construct or provide a performance, labor and material bond for the construction of all interior streets with curb, gutter, and sidewalk in conformance with the City of Oroville Standard for Residential Streets. Submit roadway design and improvement plans to the Department of Public Works for approval before the start of construction. 18. Prior to the recordation of the final map, form a county service area (CSA), zone of benefit within a permanent road division (PRD), or other entity as approved by the public works director for the ◼ Butte County Department of Development Services ◼ ◼ November 10, 2022 ◼ Conditions of Approval – Butte Vista Estates TSM20-0002/Robb Brown ◼ Page 8 ◼ operation and maintenance of interior streets, lighting, street storm drain facilities, and landscaping, if applicable. 19. 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 before the start of street paving operations. Testing of 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 the Department of Public Works to ensure compliance with Standard Specifications, approved materials and approved mix design. 20. Street lighting shall be provided in accordance with the requirements of the City of Oroville Standard for Street Light Locations. The annual energy costs shall be funded through a county service area (CSA), zone of benefit within a permanent road division (PRD), or other entity as approved by the public works director. 21. The developer must complete the formation of the CSA, zone of benefit within a PRD, or other approved entity prior to 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. 22. Prior to recordation of the final map, raise the height of the existing stop signs along Plumas Avenue from the project to 5th Avenue consistent with Butte County Standard S-13 “Street and Sign Post Details.” The applicant must obtain an Encroachment Permit from the Butte County Department of Public Works prior to the start of this work. 23. Prior to recordation of the final map, restripe existing crosswalks and stop sign striping on Plumas Avenue from the project to 5th Avenue consistent with Butte County Standard ST-18 “Typical Stop Intersection.” The applicant must obtain an Encroachment Permit from the Butte County Department of Public Works prior to the start of this work. 24. Prior to the recordation of the final map, pay applicable traffic impact fees per Article XXII of the Butte County Code of Ordinances. Drainage 25. 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. 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 (including a 100- year event), and no increase in stormwater volume over the design storm duration to said channel or facility. If infiltration trenches or swales are used to retain stormwater runoff from storm events larger than 10 years, the infiltration rate (minutes per inch) shall not be faster than the rate obtained using the Environmental Health Department test procedure using a correction factor of 3 (three). Adequate drainage paths shall be considered in the drainage design to guide floodwaters around and away from proposed structures. Prior to the final improvement inspection, the design dimensions and volume of detention facilities shall be confirmed using a topographic land survey by the engineer of record. ◼ Butte County Department of Development Services ◼ ◼ November 10, 2022 ◼ Conditions of Approval – Butte Vista Estates TSM20-0002/Robb Brown ◼ Page 9 ◼ 26. Prior to the recordation of the final map, the developer must complete the formation of a county service area (CSA), a Home Owner Association (HOA), a permanent road division (PRD) zone of benefit, or other Department of Public Works approved entity for the maintenance and operation of drainage 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 agree to an annual maximum service charge with the annual inflation increase to ensure the continued operation of the facilities. 27. 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. 28. Prior to the recordation of the final map, pay applicable drainage impact fees per Article XI, Chapter 3 of Butte County Code. Compliance with Butte County Stormwater Ordinance 29. Coverage under the stormwater Construction General Permit (CGP) will be required by the State Water Resources Control Board if the project results in ground disturbance, including clearing, excavation, filling, and grading of one or more acres or disturbs 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 before 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 the Storm Water Pollution Prevention Plan (SWPPP) shall be provided to the Land Development Division of the Public Works 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.” Final Map 30. Show all easements of record on the final map. 31. Prior to the recordation of the final map, 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. 32. Pay the recording fees in effect at the time the final map and related documents are recorded. 33. Prior to the recordation of the final map, a preliminary soil 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. ◼ Butte County Department of Development Services ◼ ◼ November 10, 2022 ◼ Conditions of Approval – Butte Vista Estates TSM20-0002/Robb Brown ◼ Page 10 ◼ Butte County Fire Department/Cal Fire 34. Construction, installation or development of buildings and/or roads, driveways, gates and bridges on parcels/lots comply with the current adopted California Fire Code and current Butte County Improvement Standards, whichever is stricter. 35. 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. 36. Prior to building construction, provide an all-weather access of at least 10 feet wide for residential, and a vertical clearance of 13’-6” that will allow for ingress and ingress and accommodate a 40,000-pound fire apparatus to within 150 feet of any point on all structures. 37. Pressurized community water system must be install and operational prior to combustible building materials arriving on site. Butte County Public Health Environmental Health Division 38. Place a note on a separate document to be recorded concurrently with the final map or on an additional map sheet that states: “All lots shall connect to Thermalito Water & Sewer District for water and sewer. 39. Prior to improvement plan approval, provide a Will Serve Letter from Thermalito Water & Sewer District, allowing connection to the public water system. Thermalito Water and Sewer District (TWSD) 40. The District is willing and able to serve the above referenced parcels once water & sewer connection fees have been paid per TWSD Policy No. 1.210. 41. Three (3) sets of improvement drawings shall be submitted to TWSD for review and approval prior to construction. The District shall approve, in advance and in writing, the plans and specifications for all water and sewer installations up to, and including, the water connection on each parcel. All plans must be submitted in accordance with District Improvement Standards. The District will sign off on its portion of the improvement plans when Butte County Development Services has informed the District that all the County plan requirements have been met and the County is prepared to sign and release the improvement plans. Be advised that the County requires that District improvements be included with the County submittal package. 42. The water and sewer installations shall be completed in a good and workman like manner in accordance with TWSD policies and standards. All work shall be subject to inspections and acceptance, in writing, by the District’s Manager or Engineer. 43. You shall be solely responsible for any and all off-site improvements necessary for the provision of water and sewer service. The District shall approve the plans and specifications for such off-site improvements in advance and in writing. ◼ Butte County Department of Development Services ◼ ◼ November 10, 2022 ◼ Conditions of Approval – Butte Vista Estates TSM20-0002/Robb Brown ◼ Page 11 ◼ 44. The water and sewer installations shall be warranted to be free of any and all defects in materials and workmanship for a period of three years from and after their acceptance by the District. Should any repair of on- and off-site defects/deficiencies in materials or workmanship in the water and sewer installations arise during such three-year period, you immediately upon written notice of the defect by the District, shall make all repairs in a good and workmanlike manner at your sole cost and expense. All repairs will be subject to inspection and acceptance, in writing, by the District’s Manager or Engineer. Should you not do so, the District may undertake but shall not be obligated to perform such repair, in which event your Maintenance Bond, as specified in TID Policy 7165, will protect the District against the results of faulty materials, poor workmanship, or defective equipment. 45. Per District Policy 7165, the Developer will pay the associated Plan Check and Inspection fees based upon an Engineer’s Estimate of the work to be performed; this policy is included with this letter. 46. You shall grant to the District in form acceptable to the District any and all public utility easements necessary to assure District’s use of and access to such water and sewer installations. All ownership of facilities will be conveyed to the District. 47. Be advised, system demand and fire flow conditions may be deficient at the site, and the Developer will be responsible for a hydraulic study of the demand this project will require of the District’s facilities. To insure that system demands, including combined fire flow and peak flow, are met, refer to the District’s Improvement Standards, Water System Design Standards: “The hydraulic analysis for the pipeline network serving the proposed development may be performed by the Hardy-Cross method, and shall be prepared by the Developer, and shall be submitted to the District for review and approval by the District’s engineer.” Before this study is preformed, contact the District office for any updates. All fire hydrants and their appurtenances that are located in the street right-of-way will become the property of the City/County to own and maintain. 48. If it is determined that the project requires any unusual improvements such as a booster station, lift station, well or other such improvement, you shall be solely responsible for installing such. The District shall approve the plans and specifications for such improvement in advance. You shall also provide a financial impact analysis for the operation and maintenance of such improvement and a method such as an assessment district for funding such, including “gap” funding during start-up. 49. All subdivisions with fifteen parcels or more may be required to dedicate a municipal well site parcel with the dimensions, not less than 100 feet by 100 feet, in fee title interest to Thermalito Water & Sewer District, together with an adequate easement for ingress and egress at such well site per TWSD Policy 1200 Rule 24. 50. Should this development have more than fifteen parcels and, as such, it will be required to provide a dedicated potable water sampling station to assist the District in meeting Department of Public Health requirements for providing locations to collect biological and quality control samples. The District will specify the manufacture, and installation details and location of the sample station. Contact the District for further details. 51. A Developer Agreement and Capacity Study shall be conducted per Sewerage Commission – Oroville Region (SCOR) policy and standards if the project consists of more than 20 equivalent dwelling units. ◼ Butte County Department of Development Services ◼ ◼ November 10, 2022 ◼ Conditions of Approval – Butte Vista Estates TSM20-0002/Robb Brown ◼ Page 12 ◼ II. NOTATION A. Minor changes may be approved administratively by the Directors of Development Services, Environmental Health, or Public Works upon receipt of a substantiated written request by the applicant or their respective designee. Prior to such approval, verification shall be made by each Department or Division that the modification is consistent with the application, fees paid and environmental determination as conditionally approved. Changes deemed major or significant shall require a formal application for amendment.