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Title 18 — Zoning

Chapter 18.90 — G GEOTHERMAL COMBINING DISTRICT

Lassen County Zoning Code · 2026-06 edition · updated 2026-07-06 · Lassen County

Note: Prior ordinance history: Ord. 467.

§ 18.90.010. Intent.

The intent of the "G" combining district is to facilitate orderly geothermal development in recognized known geothermal resource areas (KGRAs), and other geothermal resource areas identified in the Lassen County general plan, in such a manner that the resource is closely monitored, efficiently used, and protected to preserve its long-term viability. (Ord. 467-B-1, 1986; Ord. 467-Y § 1, 1999)

§ 18.90.020. Applicability.

This district may be applied to geothermal resource areas identified in the Lassen County general plan, and combined with the principle zoning district that may overlay the geothermal resource.

(Ord. 467-B-1, 1986; Ord. 467-Y § 2, 1999)

§ 18.90.030. Other provisions.

Except as otherwise provided in this chapter, lands in a "G" combining district shall be subject to the provisions of the zoning district with which it is combined, and shall also be subject to the provisions of Chapters 18.102 through 18.108 of this title. (Ord. 467-B-1, 1986)

§ 18.90.040. Uses permitted by right in "G" combining districts.

  • (a) All uses allowed by right in the principle zoning district with which the "G" district is combined.

(b) Other uses of a similar character to those enumerated above in this section. (Ord. 467-B-1, 1986; Ord. 467-E § 1, 1987; Ord. 467-Y § 3, 1999)

§ 18.90.050. Uses permitted by use permit in "G" combining districts.

  • (a) Uses allowed by use permit in the principle zoning district with which the "G" district is combined.

  • (b) Exploration, development or use of geothermal resources.

  • (c) Other uses of a similar character to those enumerated above in this section.

In each case, prior to approving a use permit, the decision-making body must make the findings set forth in Section 18.90.070 .

(Ord. 467-B-1, 1986; Ord. 467-E § 3, 1987; Ord. 467-Y § 5, 1999)

§ 18.90.070. Required findings for approval.

To ensure compliance with the intent of this chapter, prior to the approval of any use permit in the "G" district, the planning commission or the board of supervisors as appropriate must make the following findings in addition to any other findings of approval:

  • (1) Required findings for projects that include development or use of geothermal resources (all findings must be made):

    • (A) The geothermal resource is an integral component of the proposed use;

    • (B) The project will result in or facilitate direct, efficient and economical use of the geothermal resource;

    • (C) The project design provides that waste water and discharge associated with the proposed use is properly managed to avoid degradation of the geothermal resource, local geologic stability, nongeothermal ground water, surface water and wetlands and the local biological community. Re-injection is the preferred method of discharge management unless other methods are determined to be more beneficial to the resources of concern, and has been considered in the design of this project; and

    • (D) The project design incorporates a geothermal resource monitoring plan, which includes scheduled reports to the county, to help assess and ensure the long-term viability of the resource.

  • (2) Required findings for projects that do not include development or use of geothermal resources:

    • (A) Based on the evidence in the record, the project is not likely to interfere with existing or future development or use of the geothermal resource.

(Ord. 467-B-1, 1986; Ord. 467-Y § 8, 1999)

§ 18.90.080. Development standards.

  • (a) Notwithstanding any other section of this title, minimum parcel size in any "G" combining district shall be forty acres. A variance from this standard may be allowed by the planning commission or the board of supervisors upon first making the following findings:

    • (1) A use permit has been granted by the county which allows for a specified use which does not require forty acres of land for the operation of such use; and

    • (2) Such a variance would not be inconsistent with the county general plan or be adverse to the intent of the "G" combining district.

  • (b) Setbacks in "G" districts shall be as follows for the principal district with which the "G" district is combined.

  • (Ord. 467-E § 5, 1987)

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Contents — Lassen County Zoning Code
Lassen County Zoning Code
  1. Title 18 — Zoning
    Overview
    1. Chapter 18.02 — TITLE
    2. Chapter 18.04 — ADOPTION OF ZONING PLAN
    3. Chapter 18.06 — EFFECT AND PURPOSE OF THE ZONING PLAN
    4. Chapter 18.08 — DESIGNATION OF DISTRICTS
    5. Chapter 18.10 — ESTABLISHMENT OF DISTRICTS/MAPS
    6. Chapter 18.12 — EFFECT OF ESTABLISHMENT OF DISTRICTS
    7. Chapter 18.14 — DEFINITIONS
    8. Chapter 18.16 — A-1 GENERAL AGRICULTURAL DISTRICT
    9. Chapter 18.18 — A-2 AGRICULTURAL RESIDENTIAL DISTRICT
    10. Chapter 18.20 — A-3 AGRICULTURAL DISTRICT
    11. Chapter 18.22 — R-1 SINGLE-FAMILY RESIDENTIAL DISTRICT
    12. Chapter 18.24 — R-2 LIMITED MULTIPLE-FAMILY RESIDENTIAL DISTRICT
    13. Chapter 18.26 — R-3 MULTIPLE-FAMILY RESIDENTIAL DISTRICT
    14. Chapter 18.28 — C-H HIGHWAY COMMERCIAL DISTRICT
    15. Chapter 18.30 — C-L LOCAL CONVENIENCE COMMERCIAL DISTRICT
    16. Chapter 18.32 — C-G GENERAL COMMERCIAL DISTRICT
    17. Chapter 18.33 — C-R COMMERCIAL-RESIDENTIAL DISTRICT
    18. Chapter 18.36 — C-1 RETAIL BUSINESS DISTRICT
    19. Chapter 18.38 — C-2 GENERAL COMMERCIAL DISTRICT
    20. Chapter 18.39 — B-P BUSINESS PARK
    21. Chapter 18.40 — M-L LIMITED INDUSTRIAL DISTRICT
    22. Chapter 18.42 — M-1 LIGHT INDUSTRIAL DISTRICT
    23. Chapter 18.44 — M-2 HEAVY INDUSTRIAL DISTRICT
    24. Chapter 18.46 — M INDUSTRIAL DISTRICT
    25. Chapter 18.48 — P.U.D. PLANNED UNIT DEVELOPMENT DISTRICT
    26. Chapter 18.50 — P-C PLANNED COMMUNITY DISTRICT
    27. Chapter 18.52 — F-R FOREST RECREATION DISTRICT
    28. Chapter 18.54 — R-S RESORT DISTRICT
    29. Chapter 18.55 — M-R MOUNTAIN RESORT DISTRICT
    30. Chapter 18.56 — O-C-B PUBLIC CAMPGROUND/BOATING/BEACH DISTRICT
    31. Chapter 18.58 — I-1 INSTITUTIONAL USE DISTRICT
    32. Chapter 18.60 — O-H HISTORICAL SITE DISTRICT
    33. Chapter 18.62 — O-D PRIMITIVE AREA DISTRICT
    34. Chapter 18.64 — O-S OPEN SPACE DISTRICT
    35. Chapter 18.66 — E-A EXCLUSIVE AGRICULTURAL DISTRICT
    36. Chapter 18.68 — U-C UPLAND CONSERVATION DISTRICT
    37. Chapter 18.69 — U-C-2 UPLAND CONSERVATION/RESOURCE MANAGEMENT …
    38. Chapter 18.70 — T-P-Z TIMBER PRODUCTION ZONE DISTRICT
    39. Chapter 18.72 — A-F AGRICULTURAL FOREST DISTRICT
    40. Chapter 18.74 — H-R HYDROELECTRIC DISTRICT
    41. Chapter 18.76 — Y-C AIRPORT COMMERCIAL DISTRICT
    42. Chapter 18.78 — AA ACCESSORY ANIMAL COMBINING DISTRICT
    43. Chapter 18.80 — A AGRICULTURAL COMBINING DISTRICT
    44. Chapter 18.82 — A-P AGRICULTURAL PRESERVE COMBINING DISTRICT
    45. Chapter 18.84 — B BUILDING SITE COMBINING DISTRICT
    46. Chapter 18.85 — C CAMPING ON PRIVATE PROPERTY OUTSIDE DESIGNAT…
    47. Chapter 18.86 — D DESIGN COMBINING DISTRICT
    48. Chapter 18.88 — F FLOODPLAIN COMBINING DISTRICT
    49. Chapter 18.90 — G GEOTHERMAL COMBINING DISTRICT
    50. Chapter 18.92 — H HIGHWAY COMBINING DISTRICT
    51. Chapter 18.94 — NH NATURAL HABITAT COMBINING DISTRICT
    52. Chapter 18.96 — P-S PUBLIC SAFETY COMBINING DISTRICT
    53. Chapter 18.97 — P-S-A PUBLIC SAFETY AIRPORT COMBINING DISTRICT
    54. Chapter 18.98 — T TRAILER COURT DISTRICTS
    55. Chapter 18.100 — UNDERGROUND UTILITY DISTRICTS
    56. Chapter 18.102 — GENERAL PROVISIONS AND EXCEPTIONS
    57. Chapter 18.104 — PARKING REGULATIONS
    58. Chapter 18.106 — SIGN REGULATIONS
    59. Chapter 18.108 — SPECIAL PROVISIONS
    60. Chapter 18.110 — VARIANCES
    61. Chapter 18.112 — USE PERMITS
    62. Chapter 18.114 — CERTIFICATE OF CONDITIONAL USE
    63. Chapter 18.116 — PLANNED DEVELOPMENT PERMIT
    64. Chapter 18.117 — DEVELOPMENT AGREEMENTS
    65. Chapter 18.118 — DESIGN REVIEW
    66. Chapter 18.120 — NONCONFORMING USES
    67. Chapter 18.122 — INTERPRETIVE ACTION
    68. Chapter 18.124 — PROCEDURES FOR PRECISE ZONING AND AMENDMENTS
    69. Chapter 18.126 — ENFORCEMENT, LEGAL PROCEDURES, PENALTIES
    70. Chapter 18.132 — AIRPORT APPROACHES— SUSANVILLE, WESTWOOD, HER…
    71. Chapter 18.134 — AIRPORT APPROACHES—ADIN AIRPORT
    72. Chapter 18.136 — AIRPORT APPROACHES—SPALDING TRACT AIRPORT
    73. Chapter 18.138 — OPEN SPACE ZONING
    74. Chapter 18.142 — DYER MOUNTAIN INITIATIVE (MEASURE V)

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