Title 8 — HEALTH AND SANITATION
Chapter 8.44 — WELLS
San Marcos Municipal Code · 2026-09 edition · updated 2026-09-30 · San Marcos
8.44.010 - Purpose and Intent of Section 8.44.010 et seq.¶
It is the purpose of this chapter to further protect the environmental quality in this City by providing for the construction, repair and reconstruction of wells to the end that the ground water of this City will not be polluted or contaminated and that water obtained from such wells will be suitable for the purpose for which used and will not jeopardize the health, safety or welfare of the people of this City, and for the destruction of abandoned wells or wells found to be public nuisances to the end that such wells will not cause pollution or contamination or ground water or otherwise jeopardize the health, safety or welfare of the people of this City.
8.44.020 - Definitions.¶
The following words shall have the meaning provided in this section:
Abandoned or abandonment shall apply to a well which has not been used for period of one year, unless the owner declares in writing, to the Health Officer, his intention to use the well again for supplying water or other associated purposes (such as an observation well or injection well) and receives approval of such declaration from the Health Officer. All such declarations shall be renewed annually and at such time be resubmitted to the Health Officer for approval. Test holes and exploratory holes shall be considered abandoned 24 hours after construction work has been completed, unless otherwise approved by the Health Officer of San Diego County.
Abatement: The construction, reconstruction, repair or destruction of a well so as to eliminate a nuisance caused by a well polluting or contaminating ground water.
Agricultural well: A water well used to supply water for irrigation or other agricultural purposes, including so-called stock wells.
Cathodic protection well: Any artificial excavation in excess of 20 feet constructed by any method for the purpose of installing equipment or facilities for the protection, electrically, of metallic equipment in contact with the ground. (See definitions of deep anode bed and shallow anode bed.)
Commercial well: A water well used to supply water for domestic purposes in systems subject to Chapter 7 of Part I of Division 5 of the California Health and Safety Code.
Construct, reconstruct (construction, reconstruction): To dig, drive, bore, drill or deepen a well, or to reperforate, remove, replace, or extend a well casing.
Contamination: An impairment of the quality of water to a degree which creates a hazard to the public health through poisoning or through spread of disease.
Deep anode bed: Any cathodic protection well more than 50 feet deep.
Destruction: The proper filling and sealing of a well that is no longer useful so as to assure that the ground water is protected and to eliminate a potential physical hazard.
Electrical grounding well: Any artificial excavation in excess of 20 feet constructed by any method for the purpose of establishing an electrical ground.
Health Officer: The Health Officer of San Diego County or his designee.
Individual domestic well: Any artificial excavation in excess of 20 feet constructed by any method for the purpose of establishing an electrical ground.
Industrial well: A water well used to supply an industry or an individual basis.
Modification, repair or reconstruction: The deepening of a well or the reperforation or replacement of a well casing and all well repairs and modifications that can affect the ground water quality.
Observation well: A well used for monitoring or sampling the conditions of water-bearing aquifer, such as water pressure, depth, movement or quality.
Order of abatement: Both mandatory and prohibitory orders requiring or prohibiting one or more acts; said term shall also include those orders effective for a limited as well as an indefinite period of time, and shall include modifications or restatements of any order.
Permit: A written permit issued by the Health Officer permitting the construction, reconstruction, destruction, or abandonment of a well.
Person: Any person, firm, corporation or governmental agency.
Pollution: An alteration of the quality of water to a degree which unreasonably affects: (1) such waters for beneficial uses; or (2) facilities which serve such beneficial uses. Pollution may include contamination.
Public nuisance: The term "public nuisance", when applied to a well, shall mean any well which threatens to impair the quality of ground water or otherwise jeopardize the health or safety of the public.
Salt water (hydraulic) barrier well: A well used for extracting water from or injecting water into the underground as a means of preventing the intrusion of salt water into a fresh water bearing aquifer.
Shallow anode bed: Any cathodic protection well more than 20 feet deep but less than 50 feet deep.
Test or exploratory hole: Any excavation used for determining the nature of underground geological or hydrological conditions, whether by seismic investigation, direct observation or any other means.
Well: Any artificial excavation constructed by any method for the purpose of extracting water from or injecting water into the underground, for providing cathodic protection or electrical grounding of equipment, for making tests or observations of underground conditions, or for any other similar purpose. Wells shall include, but shall not be limited to, community water and supply wells, individual domestic wells, commercial wells, industrial wells, agricultural wells, cathodic protection wells, electrical grounding wells, test and exploratory holes, observation wells, and salt water (hydraulic barrier) wells, as defined herein, and other wells whose regulation is necessary to accomplish the purposes of this article. Wells shall not include: (a) oil and gas wells, geothermal wells or other wells constructed under jurisdiction of the State Department of Conservation, except those wells converted to use as water wells; (b) wells used for the purpose of de-watering excavations during construction, or stabilizing hillsides or earth embankments; or (c) other wells whose regulation is not necessary to fulfill the purpose of this chapter as determined by the Health Officer.
8.44.030 - State Reporting.¶
Nothing contained in this chapter shall be deemed to release any person from compliance with the provisions of Article 3 of Chapter 10 of Division 7 of the Water Code of the State of California or any successor thereto.
8.44.040 - Standards—General.¶
No person shall construct, repair, reconstruct or destroy any well subject to this chapter which does not conform to the standards established herein.
8.44.050 - Standards for Water Wells.¶
Standards for the construction, repair, reconstruction or destruction of water wells shall be as set forth in Chapter II of State Department of Water Resources Bulletin No. 74, three copies of which have been filed with the City Clerk with the following modifications:
(a)
Part II, Section 8(A). Add: To footnote 1 : "shallow dug or bored wells used for community water supply shall be located at least 250 feet from any sewage disposal facility."
(b)
Part II, Section 9(A). Substitute: "20 ft. 1 " for "none 3 " (this automatically deletes the 3 footnote).
(c)
Part II, Section 9(E). Add: Following footnote following section title:
**Exception: Where the air-rotary method is used for individual domestic wells 8 inch in diameter or smaller, the thickness of seal may be reduced to one inch.
(d)
Part II, Section 10(B). Delete: Entire section with exception of that portion of the first sentence which states: "Because of their susceptibility to contamination and pollution, the use of well pits should be avoided."
(e)
Part II, Section 15 (A), Item 3. Delete: Phrase: "Where the water is to be used for domestic purposes."
(f)
Part II, Section 16. Delete: From Section 16 title the word: "Large and diameter" and substitute: The words "Bored or dug."
(g)
Part II, Section 16(A). Delete: Word "underground" from the last sentence so sentence reads: "When used for this purpose, these wells shall be located at least 250 feet from any sewage disposal facility."
8.44.060 - Standards for Cathodic Protection Wells.¶
Standards for the construction, repair, reconstruction or destruction of cathodic protection wells shall be as set forth in Bulletin No. 74-1 of the State Department of Water Resources, three copies of which are filed with the City Clerk with the following modifications:
(a)
Chapter II, Part I, Section 1-A. Delete: Definition of "cathodic protection well" as printed and add: "A. Cathodic protection well:. A cathodic protection well means any artificial excavation in excess of 20 feet constructed by any method for the purpose of installing equipment or facilities for the protection electrically or metallic equipment in contact with the ground, commonly referred to as Cathodic Protection."
(b)
Chapter II, Part II, Section 8. Delete: Word "location" in title and add: Word "construction" so title reads: "Well Construction with Respect to Pollutants".
(c)
Chapter II, Part II, Section 10. Delete: Subsection A-4 and the asterisked footnote in their entirety.
(d)
Chapter II, Part III, Section 13B. Delete: Phrase "if the casing is eight inches or larger in diameter" thereby leaving the phrase "The well is covered with an appropriate locked cap."
8.44.070 - Nuisances—Investigation.¶
The County Health Officer may, upon reasonable cause to believe that an abandoned well or other well is causing a nuisance by polluting or contaminating ground water, or constitutes a safety hazard, investigate the situation to determine whether such a nuisance does in fact exist. He shall have the power, when in the performance of his duty and upon first presenting his credentials and identifying himself as an employee of the County Health Department to the person apparently in control of the premises, if available, to enter upon such premises between the hours of 8:00 a.m. and 6:00 p.m., to discover or inspect such a nuisance. He may examine such premises, things or conditions, take such samples and make such tests as needed and take any other steps reasonably necessary for the proper investigation and determination of whether such a nuisance exists.
8.44.080 - Order to Abate Nuisance.¶
Whenever the Health Officer determines that an abandoned or other well is causing a nuisance by polluting or contaminating ground water, or constitutes a safety hazard, he may issue a written order requiring that the conditions productive of the nuisance be abated within a period of ten days thereafter and shall forthwith serve the order upon the person occupying the premises, if any, and if no person occupies the premises, the order shall be posted upon said premises in a conspicuous place. In addition, a copy shall be mailed to the owners of the premises as their names and addresses appear upon the last equalized assessment roll. The Health Officer may for good cause extend the time specified in order to otherwise modify or rescind the order. The order of abatement shall advise the processors and owners of the property of their right to appeal to the City Council and to stay the order of abatement pending such appeal.
8.44.090 - Penalties.¶
Any person guilty of violating the terms of this chapter or any permit issued hereunder shall be deemed guilty of a misdemeanor and punishable in accordance with the provisions of Section 1.12.010.
(Amend. of 2-5-2025(1))
8.44.100 - Construction, Repair, Reconstruction and Destruction of Wells—Acts Prohibited.¶
No person shall construct, repair, reconstruct or destroy any well unless a written permit has first been obtained from the Health Officer as provided in this chapter, and unless the work done shall conform to the standards specified in this chapter and all the conditions of the said permit.
8.44.110 - Permits.¶
(a)
Applications. Applications for permits shall be made to the Health Officer and shall include the following:
(1)
A plot plan showing the location of the well with respect to the following items within a radius of 250 feet from the well:
a.
Property lines;
b.
Waste disposal systems or works carrying or containing sewage, industrial wastes, or solid wastes;
c.
All intermittent or perennial, natural or artificial bodies of water or watercourses;
d.
The approximate drainage pattern of the property;
e.
Other wells;
f.
Structures, surface or subsurface.
(2)
Location of the property, and the assessor's parcel number.
(3)
The name of the person who will construct the well.
(4)
The proposed minimum and the proposed maximum depth of the well.
(5)
The proposed minimum depths and types of casings and minimum depths of perforations to be used.
(6)
The proposed use of the well.
(7)
Other information as may be necessary to determine if the underground waters will be adequately protected.
(b)
Fees. Each application shall be accompanied by a fee as set forth in this Code.
(c)
Conditions. Permits shall be issued in compliance with the standards provided in this chapter except that such standards shall be inapplicable or modified as expressly provided by the Health Officer in such permit upon his finding that such modifications or inapplicability will accomplish the purposes of this chapter. Permits may also include any other condition or requirement found by the Health Officer to be necessary to accomplish the purposes of this chapter.
(d)
Ground for refusal of permit. The Health Officer may refuse to issue a permit for any of the following reasons:
(1)
The applicant is not a person authorized to perform the work as provided in this chapter.
(2)
The applicant fails to post the required surety bond or cash deposit as provided in this chapter.
(3)
The permit application is not in proper form.
(4)
The proposed well would create a water pollution problem or would aggravate a pre-existing water pollution problem or would violate any of the standards established in this chapter.
(e)
Terms, completion of work. The permittee shall complete the work authorized by the permit within the time and before the date set out in the permit. The permittee shall notify the Health Officer in writing upon completion of the work and submit a copy of the well drilling log and no work shall be deemed to have been completed until such written notification and a copy of the well drilling log have been received. A final inspection of the work shall be made by the Health Officer unless such inspection is waived by him, and no permittee shall be deemed to have complied with this chapter or his permit until such inspection has been performed or waived.
(f)
Guarantee of performance. Prior to the issuance of a permit, the applicant shall post with the Health Officer a cash deposit or bond guaranteeing compliance with the terms of this chapter and the applicable permit, such bond to be in an amount deemed necessary by the Health Officer to remedy improper work, but not in excess of $2,500.00. Such deposit or bond may be waived by the Health Officer where other assurances of compliance are deemed adequate by him.
(g)
Continuous bond or cash deposit. In lieu of furnishing a separate bond for each permit as provided above, a properly licensed contractor may deposit with the Health Officer a surety bond or cash deposit in the amount of $2,500.00, which bond or cash deposit shall be available to remedy any improper work done by the contractor pursuant to any permit issued under this chapter.
(h)
Review and appeal. Any person aggrieved by the refusal of a permit or the terms of a permit required by this chapter may appeal in writing to the Board of Supervisors. The appeal shall be accompanied by a filing fee of $15.00. The Board of Supervisors shall, within 40 days after the filing of an appeal, hold a hearing on said appeal and shall mail notice in writing of the date thereof to the appellant and applicant at least five days before the hearing date. The decision of the Board of Supervisors shall be rendered within ten days after the initial hearing date and shall be binding upon the parties, except that the determinations made by the Health Officer relating directly to the public health may not be overruled or modified by the Board of Supervisors.
8.44.120 - Person Authorized to Perform Work.¶
Construction, reconstruction, repair, and destruction of wells shall be performed by a contractor licensed in accordance with the provision of the Contractors' License Law (Business and Proffesional Code, Ch. 9, Div. 3) unless exempted by that law.
8.44.130 - Inspections.¶
(a)
Upon receipt of an applicant, an inspection of the well location may be required by the Health Officer to be made by the Health Officer prior to issuance of a well permit.
(b)
The Health Officer or any person designated by the Health Officer may inspect the work in progress and may enter the premises at any reasonable time for the purpose of performing such inspection.
(c)
After work has been completed pursuant to any permit the Health Officer shall be notified by the person performing the work and the Health Officer shall make a final inspection of the completed work to determine compliance with the well standards.
8.44.140 - Expiration of Permit.¶
Each permit issued pursuant to this chapter shall expire and become null and void if the work authorized thereby has not been completed within 120 days following the issuance of the permit. Upon expiration of any permit issued pursuant hereto, no further work may be done in connection with construction, repair, reconstruction, or abandonment of well unless and until a new permit for such purpose is secured in accordance with the provisions of this chapter.
8.44.150 - Extension of Permit.¶
Any permit issued pursuant to this chapter may be extended at the option of the Health Officer. Each individual extension granted by the Health Officer shall be for not longer than 120 days. In no event shall the Health Officer grant an extension which would make the total term of the permit exceed one year. Application for extension shall be made on a form provided by the Health Officer. The fee for submitting such application shall be as set forth in this Code.
8.44.160 - Revocation of Suspension.¶
(a)
A permit issued hereunder may be revoked or suspended by the Health Officer as hereinafter provided if he determines that a violation of this chapter exists, that written notice has been directed to permittee specifying the violation and that the permittee has failed or neglected to make the necessary adjustments within 30 days after receiving such notice.
(b)
A permit may be so revoked or suspended by the Health Officer if he determines at a hearing for such purpose that the person to whom any permit was issued pursuant to this chapter has obtained the same by fraud or misrepresentation, provided that notice of the time and place of such hearing is given to the permittee at least five days prior hereto.
(c)
The suspension or revocation of any permit shall not be effective until notice thereof in writing is mailed to the permittee, and the time for filing an appeal to the Board of Supervisors has expired. The notice shall advise the permittee of his right to appeal to the Board of Supervisors and to stay the suspension or revocation pending such appeal.
8.44.170 - Log of Well.¶
Any person who has drilled, dug, excavated or bored a well shall, upon completion of the well, submit to the Health Officer an accurate and complete log to include:
(a)
A detailed record of the boundaries, character, size, distribution and color of all lithologic units penetrated;
(b)
Type of well casing;
(c)
Location of perforations and sealing zones; and
(d)
Any other data deemed necessary by the Health Officer. In areas where insufficient subsurface information is available, the Health Officer may require inspection of the well log prior to any operation.
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