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Earlier editions: 2026-09

Chapter 17 — SUBDIVISION REGULATION

Lake County Municipal Code Art. VII Improvements

Lake County Municipal Code · 2026-10 edition · updated 2026-10-03 · Lake County

Cite as: Lake County Municipal Code Article VII · Text as of 2026-10-03

Sec. 17-28. - Improvements.

28.1 The Subdivider shall improve all streets, highways, public ways and easements…

(Ord. No. 664, § 8, 1971; Ord. No. 714, § 16, 11-6-72)

28.2 The required improvements shall be such as may be necessary for the general use of…

28.2 The required improvements shall be such as may be necessary for the general use of the residents in the subdivision and local neighborhood traffic and drainage needs including emergency ingress and egress routes for emergency uses as set forth in the "Fire Protection Standards for Lake County"; and may include street lighting, the grading and surfacing of streets, highways, and public ways, provisions of such adequate domestic and emergency water supply and sewage disposal system as may be necessary to protect the public health, safety, environment and ecology; such structures built to the approval of the Director of Public Works, as may be necessary to the use of streets and highways or the drainage thereof and to the public safety; natural gas (where reasonably available), electric and telephone utilities to serve each lot, and stubbed to property line prior to paving.

(Ord. No. 664, § 8.2, 1971; Ord. No. 714, § 17, 11-6-72)

28.3 All subdivision improvements shall be constructed in accordance with standard…

28.3 All subdivision improvements shall be constructed in accordance with standard engineering practice and shall conform to "Standard Improvement Specifications" and "Fire Protection Standards for Lake County" adopted by the Board of Supervisors and on file in the Office of the Director of Public Works. All such improvements shall be installed under the inspection of, and to the approval of, the Director of Public Works or his duly authorized representative not including utility installations installed under appropriate general order of the Public Utility Commission of the State of California. Inspection, engineering and other costs incurred by the County shall be borne by the subdivider and shall be paid to the Director of Public Works prior to final approval of any improvement work. Inspection fees deposits, shall be based on a schedule of fees adopted by resolution of the Board of Supervisors.

(Ord. No. 664, § 8.3, 1971; Ord. No. 714, § 18, 11-6-72; Ord. No. 791, § 1, 3-19-74)

28.4 Improvement work shall not begin until the tentative map of any subdivision has…

28.4 Improvement work shall not begin until the tentative map of any subdivision has been approved, and until plans for such work have been submitted to, approved and signed by the Director of Public Works or his authorized agent, and by any local water district, corporation, company or firm, and any sanitation, sanitary sewer or maintenance district or municipality which may provide the subdivision with water, sanitation, sewer or maintenance service and the requirements of Section 14.1(b) have been complied with.

(Ord. No. 664, § 8.4, 1971; Ord. No. 791, § 1, 3-19-74)

28.5 In the event that the Director of Public Works or his authorized agent shall…

28.5 In the event that the Director of Public Works or his authorized agent shall decide that such work is not proceeding pursuant to approved plans and specifications, he may order such work stopped, and shall inform the subdivider of the reasons therefor and the corrective measures necessary in order to resume work. Any improvement work done after a stop-order has been issued as herein provided shall be deemed to be a violation of this Chapter. The surety company bonding the improvements shall be notified to take immediate corrective action.

(Ord. No. 664, § 8.5, 1971; Ord. No. 791, § 1, 3-19-74)

28.6 When any part of any proposed subdivision lies within a reasonable distance, in…

(Ord. No. 664, § 8.6, 1971)

(a) When no connection to a sanitary sewer system is to be made, the subdivider shall provide evidence from the County Health Officer, certifying that field investigation has shown that ground slopes and soil conditions will allow for satisfactory disposal by septic tanks or other approved method, with the lot arrangement, lot sizes and water supply shown on the subdivision map.

(Ord. No. 664, § 8.6.1, 1971)

(b) As requested by the California Regional Water Control Board, the Planning Commission may not approve tentative subdivision maps which do not provide:

(Ord. No. 664, § 8.6.2, 1972)

(1) An engineering report on the development site including but not limited to soils survey, geology, ground and surface water hydrology, water supply, liquid and solid waste disposal, probable population densities, effects of construction and other development activities on the existing environment and conformance with the master regional or county plans.

(2) A master plan relating to the disposal of wastes anticipated from the ultimate development; such plan to conform to the regional or county master plan for sewage and solid waste disposals. Stage development will be acceptable if a firm schedule based upon occupancy accompanies the plan.

(3) The establishment of a public entity approved by the local governmental agencies involved to implement the master waste disposal plan and to provide operation and maintenance of facilities installed.

(4) In lieu of (3), above, an agreement to connect the subdivision, by annexation or otherwise, to an existing community sewerage system if the subdivision is so located that such connection is feasible.

(5) The filing of a report on the proposed waste discharge by the responsible entity, accompanied by the appropriate filing fee, pursuant to Section 13260 of the State Water Code unless the waste is to be discharged into an existing community sewerage system.

28.7 When any part of any proposed subdivision lies within a reasonable distance as…

28.7 When any part of any proposed subdivision lies within a reasonable distance as determined by the Planning Commission, of any municipal, special district or county system providing domestic water to which they may legally be connected, or when otherwise required by this Chapter, water mains shall be installed to serve each lot in said subdivision and connected to such system, to grades, locations and sizes approved by the governing body of such system. Fire hydrants shall be installed at locations approved by the Director of Public Works.

(Ord. No. 664, § 8.7, 1971; Ord. No. 791, § 1, 3-19-74)

(a) Where water is to be supplied by connection to an existing or proposed new system, the subdivider shall file a certification from the County Health Officer, from the Fire Protection Agency serving the area and from an authorized officer of said system, indicating agreement and ability to provide adequate potable water for domestic purposes and fire protection, or for the purposes indicated on the plan of subdivision. Water supply for subdivisions shall be provided as set out in the "Fire Protection Standards for Lake County."

(Ord. No. 664, § 8.7.1, 1971; Ord. No. 715, § 19, 11-6-72)

(b) When no connection to an existing system is to be made, the subdivider shall, by letter, indicate the proposed source of water supply and the proposed distribution system. Said source of supply and distribution system shall be approved by the County Health Officer and Director of Public Works, as to quality and quantity of water, and adequacy of distribution.

(Ord. No. 664, § 8.72, 1971; Ord. No. 791, § 1, 3-19-74)

(c) The requirements of the California Regional Water Quality Control Board shall be complied with where applicable before the Planning Commission approves any tentative map.

(Ord. No. 664, § 8.7.3, 1971)

28.8 Improvements to be installed by each subdivider shall be not less than the following:

(Ord. No. 664, § 8.7.4, 1972)

(a) Water lines, gas (where reasonably available) electric and telephone, and other utility services to serve each lot and stubbed to property line prior to paving.

(b) Fire hydrants of a type and size set out in the "Fire Protection Standards for Lake County," and to the Director of Public Works.

(c) Sanitary sewers where required and laterals to serve each lot, and stubbed to property line prior to paving.

(d) Storm sewers, drains and channel improvements when necessary for general use of development.

(e) Silt basins, slope planting, and other forms of erosion control when necessary for general use of development.

(f) Improved streets and roads.

(g) Street signs at all block number changes and at locations approved by the Director of Public Works.

(h) Street end barricades, walls or fencing where required.

(i) Regulatory and warning signs and traffic safety improvements at locations required by the Director of Public Works.

(j) It shall be the responsibility of the subdivider to make the necessary arrangements with the serving electric utility for the installation of a (underground served) utility-owned and operated street light system.

(Ord. No. 714, § 20, 11-6-72; Ord. No. 791, § 1, 3-19-74)

Exceptions & meaning →

28.9 The following off-site improvements may be required:

(Ord. No. 664, § 8.9, 1971)

(a) The development of a domestic water supply, including storage facilities, or financial contribution for the improvement of any existing source of supply, and the construction of transmission lines from that supply to the proposed development.

(b) The development of sewage disposal facilities or financial contribution for the improvement of any existing sewage disposal system and the construction of transmission lines from the proposed improvements to the site of disposal. The design and construction of the transmission lines and the sewage disposal system shall be approved by the manager of the Lake County Sanitation District and the Director of Public Works.

(c) When the County has adopted a Drainage Element of a General Plan pursuant to Section 65469 of the Government Code of the State of California, which contains an estimate of the total cost of constructing the drainage facilities required by the plan, the subdivider shall pay the fee set out for constructing planned drainage facilities for the removal of surface and storm waters from local or neighborhood drainage areas.

(d) Improved access roads.

(e) The extension of other utilities.

(Ord. No. 791, § 1, 3-19-74)

Exceptions & meaning →

28.10 Agreements may be made upon approval of the Board of Supervisors for…

28.11 For purposes of measurements required by this section only, Clear Lake is defined…

(Ord. No. 664, § 8.11, 1971)

(a) In addition to all other requirements of this Chapter, any subdivision, or any Division of land resulting in more than four (4) parcels, shall be improved if feasible, with a sewage disposal system and a domestic water supply system, with laterals stubbed to the street line of each lot, if any one or more of the following conditions exist:

(Ord. No. 664, § 8.11.1, 1971)

(1) One-half or more of the number of all lots in the entire development are at or below elevation 1400 feet above mean sea level as established by the U.S. Geological Survey, Within the natural drainage basin of Clear Lake.

(2) Any part of the subdivision or Division of land is less than 5280 feet from Clear Lake.

(3) Any part of the subdivision or the Division of land is less than 2600 feet from the line of high water level of 1964 as recorded by the Lake County Flood Control & Water Conservation District of any lake, reservoir, lagoon, marsh, or other body of water, natural or man-made, perennial or intermittent, the waters of which reach Clear Lake within a distance of 5280 feet or less from the outlet of said body of water.

28.12 The following provisions shall apply to the subdivider of any land abutting Clear…

(Ord. No. 664, § 8.12, 1971)

(a) Any filling, dredging or grading of the bed of a navigable body of water.

(b) Any filling or grading of any area which is within three hundred (300) feet horizontal distance of any navigable water, has surface drainage toward said water, and on which there is to be:

(1) More than five hundred (500) square feet of fill on land having a natural elevation of less than 1330 feet above mean sea level; or

(2) Filling or grading on any slope of ten (10%) per cent or more; or

(3) Exposure, by grading, of ten thousand (10,000) square feet or more, of the bank of a navigable body of water.

(c) Creation of any artificial waterway, canal, ditch, lagoon, pond, lake or similar body of water which is designed so as to ultimately connect with Clear Lake or any of its navigable tributaries.

28.13 The subdivider shall file with the tentative map of his subdivision, in addition…

28.14 The statement shall be referred by the Planning Commission to the Director of…

(Ord. No. 664, § 8.12.2, 1971; Ord. No. 791, § 1, 3-19-74)

28.15 Before approving the tentative map of the subdivision, the Planning Commission…

28.16 Height of any proposed bridge shall be approved by the Planning Commission.

Sec. 17-29. - Monumentation.

29.1 An accurate and complete survey shall be made of the land to be subdivided.

29.2 In making the survey on which the final map is based, the engineer or surveyor…

29.3 Permanent monuments shall be no less substantial than 1-¾″ × 30″ iron pipe, set to…

29.4 Galvanized pipe, no less substantial than ½ inch by thirty (30) inches, set in the…

29.5 Monuments no less substantial than steel pins, one-half (½) inch in diameter by…

29.6 Standard monuments, as shown in the adopted "Standards and Specifications" of the…

29.7 All monuments shall be tagged with the license number of the engineer or surveyor…

29.8 All monuments shall be subject to inspection and approval by the County Surveyor…

(Ord. No. 664, § 9.8, 1971)

(a) The purpose of monumentation is to enable the survey to be retraced.

(Ord. No. 664, § 9.8.1, 1971)

(b) The County Surveyor may vary the requirements of this section because of geological or topographical conditions.

(Ord. No. 664, § 9.8.2, 1971)

(c) There shall be an inspection fee paid to the County Surveyor based on actual cost of field inspection of monumentation.

(Ord. No. 664, § 9.8.3, 1971)

Exceptions & meaning →

29.9 Provided that a cash deposit or approved bond, in an amount set by the County…

Sec. 17-30. - Final Map of Tract Not Defined as Subdivision or Division of Land.

30.1 Nothing in this Chapter shall prohibit the filing of a final map covering any…

30.2 A tentative map of such tract or division, conforming to all the provisions of…

30.3 Thereafter, a final map, conforming to the approved or conditionally approved…

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