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Chapter 17 — SUBDIVISION REGULATION

Article VII — IMPROVEMENTS

Lake County Municipal Code · 2026-09 edition · updated 2026-10-02 · Lake County

Sec. 17-28. - Improvements.

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

subdivision (except reserved dedications for future street purposes.) The subdivider shall also comply with the "Fire Protection Standards for Lake County" adopted by the Board of Supervisors."

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

Exceptions & meaning →

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

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)

Exceptions & meaning →

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

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)

Exceptions & meaning →

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

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)

Exceptions & meaning →

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

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)

Exceptions & meaning →

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

Planning Commission, of any municipal, special district, or county sewage disposal system to which they legally may be connected, or when otherwise required by this Chapter, sanitary sewer facilities 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.

(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.

Exceptions & meaning →

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

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)

Exceptions & meaning →

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…

developers for facilities required by the County, to the extent that such facilities are in excess of sizes, lengths and locations needed to serve the subdivision. Requests for reimbursement shall be made in writing at the time of submitting the final map.

(Ord. No. 664, § 8.10, 1971)

Exceptions & meaning →

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

all of that portion of the main body of Clear Lake and waterways and the tributaries of Clear Lake, either natural or artificial, perennial or intermittent, lying below an elevation of 1326.21 feet above mean sea level (7.56 on the Rumsey gauge at Lakeport).

(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.

Exceptions & meaning →

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

navigable tributaries, who proposes any of the following:

(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.

Exceptions & meaning →

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

required by this Chapter, a statement describing any of the operations listed in Section 28.12 above, and setting forth his proposals as to the length of time during which bare ground will be exposed; temporary and permanent ground cover; diversions, silting basins, terraces and other sediment controls; protection or replacement of fish and wildlife habitat; stabilization of fill; preservation of floodways and flood plain capacity; stabilization of the banks of channels and artificial watercourses.

(Ord. No. 664, § 8.12.1, 1971)

Exceptions & meaning →

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

Health Officer, and to the Lake County Flood Control and Water Conservation District for review and comment.

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

Exceptions & meaning →

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

approve the statement, on the finding that the measures proposed therein will preserve or enhance navigable waters by preventing erosion, sedimentation, pollution or impairment of water quality or of fish and aquatic life. Before approving the statement, the Commission may make such changes as it deems necessary, in order to make the required finding. The Commission may also make the performance of any or all of the operations and proposals described in the said statement, a condition of approval of the tentative map, to be performed or otherwise accounted for prior to any approval of the final map of the subdivision involved.

(Ord. No. 664, § 8.12.3, 1971)

Exceptions & meaning →

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.

With the final map, the

subdivider shall file a traverse sheet or sheets, in a form approved by the County Surveyor, giving latitudes, departures and coordinates of the boundary of the subdivision and blocks therein. Traverse of the boundaries of the tract, and of all lots and blocks, must close within a limit of error of one part in ten thousand (10,000). If any shortage or excess is found on the ground between monuments, compared with the original record, any division of the total must bear its proportion of such excess or shortage. The

traverse sheet shall be transmitted to the County Surveyor, who shall approve it before the final map may be approved by the Planning Commission.

(Ord. No. 664, § 9.1, 1971)

Exceptions & meaning →

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

monuments at all angle and curve points on the exterior boundaries of the subdivision, and shall set two permanent monuments within sight of each other in each block.

(Ord. No. 664, § 9.2, 1971)

Exceptions & meaning →

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

inches from the surface of the surrounding ground, with the center point marked by a copper tack or pin.

(Ord. No. 664, § 9.3, 1971)

Exceptions & meaning →

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

for permanent monuments, shall be placed at the beginning and end of all curves and at all single points.

(Ord. No. 664, § 9.4, 1971)

Exceptions & meaning →

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

long, and set in the ground as prescribed for permanent monuments, shall be set at all corners.

(Ord. No. 664, § 9.5, 1971)

Exceptions & meaning →

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

placed along the center line of streets and alleys at all intersections, and at the beginning and ending of curves.

(Ord. No. 664, § 9.6, 1971)

Exceptions & meaning →

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

their installation.

(Ord. No. 664, § 9.7, 1971)

Exceptions & meaning →

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

approves the final map.

(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…

the subdivider to guarantee such work, monuments may be set after the approval of the final map, but not later than the time of acceptance of the subdivision improvements by the Board of Supervisors.

(Ord. No. 664, § 9.9, 1971)

Exceptions & meaning →

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…

thereof, not defined as a "Subdivision".

(Ord. No. 664, § 10.1, 1971)

Exceptions & meaning →

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

filed and approved as required herein.

(Ord. No. 664, § 10.2, 1971)

Exceptions & meaning →

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

filed and approved as required by Section 10 of this Chapter.

(Ord. No. 664, § 10.3, 1971)

Exceptions & meaning →

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