Search Jobs

General

The Operations Contract Administrator reports to the Manager, Bus Contracts, and is responsible for the development and compliance of multiple third-party contracts of the San Mateo County Transit District.

 

APPLICATION DEADLINE:       Sunday, August 10, 2025 (1st cutoff Sunday, July 20, 2025)

 

Essential Functions & Duties

• Manage fixed route, paratransit, shuttles, microtransit, and other third-party contracts. 
• Answer inquiries regarding operation from both internal and external customers.
• Investigate, identify and correct operational problems. 
• Develop operational and technical provisions for each service agreement.
• Work with assigned department staff to monitor contract compliance such as monitoring field inspection activity and review reports or writ- ups.
• Design campaigns to encourage superior performance, and providing feedback to contractors for continual improvement, especially in safety-related areas.
• Work directly with private and public entities on route development, scheduling, and reporting on service quality.
• Track budgetary expenditures throughout the year. Prepare monthly reports for assigning performance bonuses or liquidated damages based on contractor performance criteria established in contractual agreements.
• Represent the Bus Contracts Department at consumer advocacy forums, various committee meetings, city council meetings, and SamTrans Board of Directors meetings. Attend meetings with various agencies, both private and public, and city council in development of routes and schedules, coordinates schedule changes with SamTrans and SMCTA planning teams, third-party contractors, other transit providers.
• Collect, organize, and complete monthly, quarterly and annual reports.

Examples of Essential Duties:  

• Provide effective team leadership to department staff that incorporates the District’s core values. Provide on-going staff mentoring in application and practice of business ethics while fostering personal growth.
• Review and retrieve information in the Vector EHS Management, Business Intelligence and other District-related databases. 
• Conduct inspections of property and equipment at sites in and around District service area in a variety of weather and road conditions.
• Monitor bus maintenance and substance abuse programs of contractors through frequent random and regular inspections of equipment and records.
• Represent the District at community meetings and serves as SamTrans representative on the multi-agency consortiums.
• Represent SamTrans in contract compliance issues, always keeping the best interests of SamTrans at the forefront of priorities. 
• Collaborate with Accessible Services staff in quality oversight of paratransit service for the senior and disabled community under ADA rules and regulations.
• Perform all job duties independently and with the upmost professional discretion. 
• Responsible for intra-department training in: PeopleSoft, Microsoft Office, and Adobe Acrobat. Also responsible for general business systems training for department staff.
• Plan and operate special event transportation services for Bus Contracts.
• Perform all job duties and responsibilities in a safe manner to protect oneself, fellow employees, and the public from injury or harm. Promote safety awareness and follow safety procedures to reduce or eliminate accidents.
• Perform other duties as assigned.

 

Minimum Qualifications

Sufficient experience, training and/or education to demonstrate the knowledge and ability to successfully perform the essential functions of the position. In lieu of a degree, full time work-related experience that demonstrates the skills and experience necessary to perform this role will be accepted. Development of the required knowledge and abilities is typically obtained through but not limited to:

• Associates degree in transportation, business or related field.
• Four (4) years of management or supervisory experience in bus operations, or management or supervisory experience of consultants, contractors, vendors or contracted services. 
• Must be able to possess a Valid California driver's license.
• Capable of conducting inspections of property and equipment at sites in and around District service area (San Mateo County, Santa Clara County & San Francisco County) in all types of weather and road conditions.

Preferred Qualifications: 

• Bus transportation operations (ideally public transit) experience. 
• Proficiency in Microsoft Word and Excel.
• Excellent oral and written communication skills.
• Possess the ability to perform detailed work with a high degree of accuracy, thoroughness and independence.
• Able to represent the District in contract compliance issues.
• Valid California driver's license with a safe driving record preferred.

 

 

The selection process may include a panel interview, written and skills test assessments, or supplemental questions.  Only those candidates who are the most qualified will continue in the selection process. Meeting the minimum qualifications does not guarantee an invitation to continue in the process.      

 

How to Apply

• Complete an online employment application by 11:59 p.m. of the listed closing date.  Resumes and cover letters will not be accepted in lieu of fully completed applications.  It is the applicant’s responsibility to ensure that applications are completed with all relevant information (experience, education, certifications, licenses, references and/or other information). 

• The Human Resources Department will make reasonable efforts in the recruitment/examination process to accommodate applicants with disabilities upon request.  If you have a need for an accommodation, please contact the Human Resources Department.   

• We celebrate diversity and are committed to creating an inclusive and welcoming workplace environment.  We are an Affirmative Action/Equal Opportunity Employer.  Minorities, Women, Persons with Disabilities and Veterans are encouraged to apply. 

General

 

APPLICATION DEADLINE:       Sunday, August 31 2025 (1st cutoff Sunday, August 10, 2025)

The Bus Fleet Facilities Infrastructure Department oversees the delivery of major bus fleet and facilities infrastructure projects for SamTrans. The projects include design and construction of zero emission infrastructure (battery electric bus (BEB) charging infrastructure and hydrogen fuel cell electric bus (FCEB) infrastructure) for SamTrans's revenue and non­revenue fleet of nearly 400 vehicles, sea level rise and flood mitigation structures, bus administration, transportation, and maintenance buildings, and other structures at SamTrans' North Base and South Base Maintenance Facilities. 

The Construction Manager will report to the Director, Bus Infrastructure and Capital Projects and will be responsible for establishing standards, policies, and processes to manage the construction of SamTrans projects. This position oversees both the construction and construction management of projects, working with Project Managers, Construction Management Team, and Contractors to ensure successful project delivery. Responsibilities include providing constructability review of Contract Documents prior to advertisement, providing guidance to engineering and construction management staff in the planning, organizing and directing the work of contractors, negotiating changes to project scope or budget, directing the advertise, award, and administration phases of construction, and ensuring project and contract compliance with public contracting law.

Essential Functions & Duties

Examples of Essential Functions:

• Oversee the development of standard construction management manual that can be used for future SamTrans facilities and infrastructure projects in construction.
• Oversees the development of a Construction Quality Management Plan for construction projects.
• The individual selected for this position must demonstrate strong abilities in leadership, self–motivation, and technical acumen as well as extensive staff management and development experience, strong communication and organizational skills, and sound judgment in their area of expertise.
• Managing general engineering consultants that develop provide construction management services.
• Oversees the constructability review process for construction documents prior to bid issuance.
• Managing coordination and communications with project stakeholders.
• Oversee management of the scope, schedule, budget, and quality of infrastructure projects from construction phase to close out.
• Make presentations at SamTrans Board meetings and other public meetings about the construction projects.
• Manage communication with internal and external stakeholders. Obtain input, collaborate, build consensus, and resolve issues if needed.
• Manage consultant and professional level staff. Ensure EEO policies and procedures are followed. Participate in selection of staff. Coordinate staff training and professional development. Establish performance objectives. Monitor and evaluate employee performance.

Examples of Essential Duties:

• Inspects on-going construction projects to ensure improvement and devise capital improvement plans.
• Manages and participates in the development and implementation of Construction Management Manual, Construction Quality Management Plan and other relevant documents to help improve the workflow and development of the department during construction.
• Plans, directs, coordinates, and reviews the work directives for assigned staff or contractors; assigns work activities, projects, and programs; reviews and evaluates work products, methods, and procedures; meets with staff and/or contract service providers to identify and resolve problems.
• Provide constructability reviews and approve final project plans, specifications, and cost estimates.
• Collaborate with project managers in the preparation of plans, specifications, cost estimates, requests for proposals, and bid documents for SamTrans’ infrastructure projects.
• Coordinate and collaborate closely with SamTrans project stakeholders.
• Brief Executive Management and the Board on the status, progress, and requirements of SamTrans infrastructure projects.
• Provide direction and guidance to consultant staff responsible for managing infrastructure projects.
• Support development of contract solicitations.
• Investigate, evaluate, and resolve project issues.
• Identify root cause of issues. Determine and present appropriate solutions.
• Review cost estimates, monitor construction schedules and budgets, and monitor work in progress.
• Coordinate the provision of capital project development and implementation services with other departments and divisions.  
• Maintain a full understanding of all technical and regulatory matters affecting bus facility and infrastructure maintenance and construction activities.   
• Coordinate with federal, state, and local agencies during project implementation, and ensure compliance with their administrative guidelines.
• Represent SamTrans before the Board of Directors, city councils, and other state, federal, local, and regional agencies, boards, and before local citizens in public meetings and hearings.
• Develop, negotiate, and monitor contracts and cooperative agreements with other governmental agencies, private consultants, and private contractors.
• Perform all job duties and responsibilities in a safe manner to protect oneself, fellow employees, and the public from injury or harm. Promote safety awareness and follow safety procedures in an effort to reduce or eliminate accidents.
• Perform other duties as assigned.

 

Minimum Qualifications Sufficient experience, training and/or education to demonstrate the knowledge and ability to successfully perform the essential functions of the position. In lieu of a degree, work-related experience that demonstrates the skills and experience necessary to perform this role will be accepted. Development of the required knowledge and abilities is typically obtained through but not limited to:

• Bachelor’s degree in Engineering, or a closely related field.
• Five (5) years full-time increasingly responsible management experience in the area of civil, electrical, mechanical, or other related engineering design, construction management, and/or public works project management.
• Three (3) years experience supervising staff on a full-time or project basis.

Preferred Qualifications

• Experienced in the management and delivery of complex engineering design projects for public transit agencies.
• Possess Quality Control/Quality Assurance experience.
• Experienced with Storm Water System Management.
• Registered Professional Engineer in the state of California.
• Able to possess a valid California drivers’ license with a safe driving record.

 

The selection process may include a panel interview, written and skills test assessments, or supplemental questions.  Only those candidates who are the most qualified will continue in the selection process. Meeting the minimum qualifications does not guarantee an invitation to continue in the process.      

 

How to Apply

• Complete an online employment application by 11:59 p.m. of the listed closing date.  Resumes and cover letters will not be accepted in lieu of fully completed applications.  It is the applicant’s responsibility to ensure that applications are completed with all relevant information (experience, education, certifications, licenses, references and/or other information). 

• The Human Resources Department will make reasonable efforts in the recruitment/examination process to accommodate applicants with disabilities upon request.  If you have a need for an accommodation, please contact the Human Resources Department.   

• We celebrate diversity and are committed to creating an inclusive and welcoming workplace environment.  We are an Affirmative Action/Equal Opportunity Employer.  Minorities, Women, Persons with Disabilities and Veterans are encouraged to apply. 

THE COMMUNITY

The City of Menlo Park is a thriving community with tree-lined neighborhoods, active commercial areas, spaces to enjoy the outdoors, and opportunities to engage in local activities. Located conveniently between the major metropolitan areas of San Francisco and San Jose, Menlo Park is home to just under 34,000 residents in its 19 square miles. The stunning natural surroundings of the city afford views of the San Francisco Bay to the east and the Pacific Coastal Range to the west. Menlo Park’s climate is moderate to warm, with an average of 265 sunny days a year.

Menlo Park’s residents reflect a range of backgrounds and interests, with a tendency toward being actively engaged in community life. The City’s close proximity to Stanford University and Menlo College provide a multitude of academic, cultural and athletic event opportunities. The City regularly hosts musical performances and cultural experiences at both the Burgess campus and the newly opened Belle Haven Community Campus. The Downtown, with its many eateries and unique shops, attracts locals and visitors alike. The Menlo Park Caltrain station also provides a convenient connection to the numerous arts and leisure activities in the San Francisco and San Jose areas.

Known worldwide as the “Capital of Venture Capital,” Menlo Park hosts many venture capital firms and is well situated to benefit from and help shape new technologies and markets originating from the Silicon Valley. Additionally, Menlo Park is host to numerous technology and healthcare related companies, including such major employers as Meta (formerly Facebook), SRI International, Pacific Biosciences, Exponent, Grail, CSBio, and Robinhood. For additional information, visit the City's website at: menlopark.gov.

 

THE ORGANIZATION

Incorporated in 1927, Menlo Park is a General Law city operating under a Council-Manager form of government. The City Council is the City’s five-member governing body whose members are elected by district for four-year overlapping terms in general municipal elections. The Mayor and Vice Mayor each serve one-year terms and are selected annually by the City Council.

The City Council appoints the City Manager and City Attorney as well as members of the Planning Commission and numerous advisory boards. The City Manager appoints all executive and management level positions. City staff report to one of six departments: City Manager’s Office, Administrative Services, Community Development, Library and Community Services, Police, and Public Works, which includes water and solid waste enterprises. Fire protection and sanitary services are provided by separate special districts.

The City is supported by 296 FTE and has over 55 funds with a total expenditure budget of $207.9 million. As evidence of the City’s sound financial stewardship and solid financial standing, Menlo Park consistently maintains an AAA bond rating, in large part due to its healthy reserves and diverse revenue base

 In addition to its many attributes, Menlo Park has one of the most beautiful civic center campuses in the Bay Area. Heritage trees, a running fountain and a duck pond surround City Hall. The campus also includes a nine-acre park, recreation facilities and the Menlo Park Library. These civic amenities make the campus a noted destination for residents, local employees and visitors. Conveniently located, the campus is a short walk to the Menlo Park Caltrain Station and the downtown district with numerous restaurants and shops.

 

THE DEPARTMENT

The Community Development Department is responsible for ensuring a sustainable and vibrant community that supports a high quality of life for residents, businesses and visitors. It is comprised of 35 FTE who operate as an effective and cohesive team across multiple functional areas and lead a number of City initiatives to support the City Council goals. The Department includes the Building, Planning and Housing Divisions, and core services include building permits, plan check, inspections, affordable housing administration and housing initiatives, as well as long-range planning and development review.

The Building Division, which is the division this position will be responsible for overseeing, includes managing building permit, plan check and inspection processes for compliance with all applicable State laws, local municipal codes and related policies involving building construction. These functions require a high level of customer service with the public and coordination within and across various departments and agencies. The Division issued approximately 1,700 building permits and conducted 10,000 building inspections in 2024. For additional budget information, visit menlopark.gov/budget.

 

THE POSITION

The City of Menlo Park is seeking a strong, forward-thinking leader who is collaborative and passionate about serving the community and advancing department and City goals. This position serves as the City’s Building Official, as well as plans, organizes, manages, and provides administrative direction and oversight for major functions, activities, and staff of the Building Division. The incumbent will assist with department initiatives, including annual budgeting and monitoring and the development and administration of departmental policies, procedures and services, as well as day-to-day operations, including reviewing plans, interpreting applicable code, and meeting with stakeholders to explain processes. Areas of responsibility include building and safety, permit processing and issuance, inspection and compliance with the California Building Standards Code and relevant parts of the City’s Municipal Code, and building plan check review.

This position plays a key role in collaborating and coordinating assigned activities with other City departments, teams, and outside agencies and fostering cooperative working relationships. The person in this role is also expected to have excellent rapport with the general public, with the ability to respond to, and resolve difficult and sensitive citizen inquiries and complaints.

Current examples of notable projects include coordinating the upcoming California Building Standards Code cycle, collaborating on the IT Master Plan and land management permitting system (Accela) to improve customer experience and service delivery, and overseeing the building permit process for a diverse range of development from tenant improvements to hotels to comprehensive mixed-use campuses. The City has over 2,000 residential units, two hotels and more than 1.8 million square feet of commercial spaces approved, but not yet under construction, along with a number of large development projects currently under review. This position reports directly to the Community Development Director and is responsible for overseeing several positions within the Building Division across all functional areas.

We have an exciting opportunity for a full-time Chief Building Official to join our team in Millbrae, San Mateo County.  

Reporting to the Community Development Director, you will help lead Millbrae’s growth by directing fieldwork, ensuring compliance with building regulations, facilitating major construction projects, and upholding high safety standards.

In addition to administrative duties, this customer-service-oriented position includes providing education and guidance to residents and contractors, performing hands-on plan checks and building inspections, and overseeing a support team of contracted permit technicians, plan checkers, and inspectors.

 

Definition: This division head classification is responsible for managing the City’s building inspection activities, enforcing the state building codes and regulations, plan check services and advising builders and homeowners on construction design and standards.

 

Essential Duties: Depending upon assignment, the duties of the Building Official include:

 

• Managing and directing the division staff. Through inspections, ensures that all structures comply with applicable state and local laws, codes and ordinances.  Ensuring prompt review of plans for proposed building construction or alterations, and the timely inspection of structures.
• Reviewing and recommending revisions of the City codes to comply with federal, state and local requirements.
• Developing policies and procedures designed to improve plan checking and the code enforcement program. Streamlining permit issuance procedures, when applicable, and developing updated forms as needed.
• Effectively monitoring division workloads to ensure adequate and timely plan checks and building inspections.
• Providing technical assistance and advice to architects, engineers, contractors and homeowners on matters pertaining to building plans, zoning regulations, construction methods, materials, procedures and building and related codes.
• Maintaining a competent and motivated work force by training, developing, disciplining and evaluating the performance of subordinates. Objectively and constructively evaluating the performance of subordinates, promptly apprizing subordinates of how well they are performing and/or in what specific areas they should seek improvement.
• Ensuring financial soundness of the division by developing, justifying and effectively managing the division budget.
• Generating monthly reports for the City Manager regarding building activity and workload, and other reports as necessary.  Maintaining work records related to the development of such reports.
• Responding to and resolving complaints from the public in a tactful and courteous manner.  Investigating problems to determine responsibility and methods for resolution as appropriate.
• Interpreting and making decisions on technical problems related to building, plumbing, electrical, mechanical codes and related federal, state and local laws and ordinances.
• Ensuring that checks and analysis of new construction and building alteration plans for residential, commercial, industrial buildings are done in a timely manner to ensure compliance with codes and policies. Ensuring plan checks accurately identify corrections, corrections notices are prepared and forwarded to applicant, maintaining plan check log for up to date information and current status of the plan check. Approving plans and issuing permits when appropriate.
• Maintaining and developing the electronic permitting and inspection system.
• Maintaining and developing the City street file system.

 

Special Requirements: Physical agility adequate to inspect construction sites.  Requires physical flexibility and dexterity, including the ability to continually stand, bend, stoop, reach and crouch.  Must be able to communicate effectively, both orally and in writing, hear voices and operate telephones.  Must have the ability to quickly and accurately see, review, and interpret plans and diagrams and make inspections.

 

Minimum Qualifications:

 

Knowledge of: Building, plumbing, electrical, and mechanical codes and ordinances enforced by the City; principals, practices and techniques of combination inspection, building materials, accepted safety standards; State laws regulating building construction and zoning; precautionary safety and fire prevention methods in occupancy of buildings; building construction and materials, particularly structural construction materials and specialized terminology used in connection therewith; general knowledge of accepted methods of training; and knowledge of the construction industry and of modern supervisory principals and practices.

 

Ability and skills: To direct the work of others; provide technical supervision and training to division staff; read and

quality control building plans, diagrams, specification and building codes; enforce laws, codes and regulations with tact;

maintain records and prepare clear and concise reports and correspondence; supervise plan checking; analyze facts and exercise good independent judgement; read, interpret and perform analysis of plans for various structures; formulate and apply uniform policies and standards for the building inspection program; deal tactfully and effectively with contractors and the public; learn, retain, interpret and use technical knowledge related to federal, state and local laws related to building codes. Communicate clearly and concisely, both orally and in writing. Establish, maintain and foster cooperative teamwork within the division, within various departments and other agencies that are associated with building construction.

 

Education and Training Guidelines: Sufficient education and experience to satisfactorily perform the duties of this classification. A typical qualifying background would be four (4) years of progressively responsible experience in combination inspections, including two (2) years at a supervisory level. An Associate of Arts or Science Degree in Building Inspection Technology or a bachelor’s degree in civil engineering or a related field is desirable.

 

Experience: Four (4) years of progressively responsible full-time experience as a Building Inspector with a Municipal Building Department with at least two (2) years in a supervisory position.

 

Supervision Exercised and Received: The Building Official supervises the Building Inspector/Plan Checker and the Permit Technician.  The Building Official reports to the Community Development Director. 

 

License: Must possess and maintain a valid California Operator’s License issued by the State Department of Motor Vehicles and a satisfactory driving record.

 

Certification: Must possess and maintain certifications by the International Conference of Building Officials (ICBO): Plans Examiner and Combination Inspector. Must possess, or obtain within one year of employment, certification by the International Code Council (ICC) as a Building Official. A Certified Access Specialist (CASp) certification is highly desirable. Registration as an architect, civil, or structural engineer is highly desirable.

Are you ready to make a difference in the City of East Palo Alto? We are seeking an enthusiastic, innovative, forward-thinking, and inspirational team leader as the next

CHIEF BUILDING OFFICIAL

Salary: $152,573 - $185,454 Annually 

$12,714 - $15,454 Monthly

PLUS A $22,500 INCENTIVE PACKAGE

OPEN UNTIL FILLED

If you thrive in a fast-paced environment, work well under pressure, and bring innovation and a positive, effective attitude to your work, you may be the next Chief Building Official for the City of East Palo Alto. The Chief Building Official plans, organizes, oversees, coordinates, and reviews the work of professional, technical, and administrative staff performing difficult and complex support related to all programs and activities of the Building Division. In addition, this position administers Building Code activities and manages the effective use of the City's permit processing, plans examination, building inspection, and code compliance resources to improve organizational productivity and customer service. The incumbent will provide highly complex and responsible support to the Community and Economic Development Director in areas of expertise and perform related duties, as assigned.

This is an open, competitive/ promotional recruitment, meaning that it is open to qualified permanent employees and any other applicants who meet the minimum qualifications. Two employment lists will be created for internal promotional and an open list of all other non-current EPA employees.

 

For more information about this exciting opportunity, please view the brochure below: 

This is a Temporary Provisional position.  

A provisional appointee must participate and be successful in a Civil Service Examination process for this classification and be selected through an open competitive process in order to be considered for a permanent appointment. 

San Francisco is a vibrant and dynamic city, on the forefront of economic growth & innovation, urban development, arts & entertainment, as well as social issues & change. This rich tapestry of culture and ideas is sustained by our City's commitment to heighten the quality of life for the diverse population of San Franciscans and residents of the greater Bay Area. Our employees play an important role not only in making our City what it is today, but also in shaping the future of San Francisco.

• Applications Open: May 19, 2023
• Applications Close: No earlier than Sunday, June 9, 2023
• Salary $116,272

Are you passionate about Juvenile Justice, Public Safety, and the Community we serve? Are you a dedicated professional who wants to maximize their impact in the lives of some of San Francisco’s most marginalized youth? If so, we encourage you to take advantage of this unique opportunity to join a team that is devoted to re-imagining Juvenile Justice, committed to racial equity, and focused on ensuring long-term public safety through the development, enrichment, and accountability of young people we serve throughout San Francisco. Read more about the San Francisco Juvenile Probation Department (JPD). 

Job Description

Under general supervision, operates, maintains, troubleshoots, and repairs a wide variety of pumping, heating, ventilating, air conditioning, refrigeration and auxiliary plant machinery and equipment in a large complex or multi-faceted facility. Ensures that all equipment, machinery and systems are functioning normally and safely, and complies with all applicable safety rules and regulations.

MAJOR, IMPORTANT, AND ESSENTIAL DUTIES

1. Operates, maintains and repairs a wide variety of pumping, heating, ventilating, air conditioning, refrigeration, and power generating equipment in a large complex or multi-faceted facility to ensure the safe, correct and efficient functioning of the facility and equipment may be required to operate computerized building management systems, preventative or predictive maintenance computer systems or Computerized Data Gathering System (SCADA).2. Inspects and tests: machinery and equipment for safe, efficient and proper operation by visual and audio inspection during walk-throughs and by standard monitoring; fire prevention equipment to ensure safe and proper functionality; water storage and multiple distribution systems, high pressure zones, wood and steel storage tanks, pumps and relief valves, and samples of water.

3. Makes entries and keeps records on shift operation by taking and entering gauge readings and accurate water laboratory analysis readings and temperatures on operating log sheets or into a computer data system to ensure preventative maintenance and equipment history; and changes charts and recordings accordingly.

4. Receives, records and stores large amounts of treatment chemicals and may handle hazardous chemicals in confined or enclosed areas; must be capable of safely and properly handling chemical spills; may also include handling and treatment of industrial or hazardous waste.

5. Contacts, communicates and is required to deal with contractors, building tenants and/or the general public in order to be able to discharge assigned duties.

6. Maintains keys, communications equipment, and security (in the absence of Security Personnel), in order to ensure the security of a plant and buildings and grounds, including public safety. As part of an emergency response team, recognizes, evaluates, and responds to potentially hazardous situations.

7. Performs control tests on water samples to determine chlorine and fluoride residual, pH, alkalinity, turbidity, color, saturation index and flocculation factors; under supervision, conducts water analysis and regulates treatment chemical dosages to maintain water quality in filtration plant, distribution system, or other large complex facility may also be required to perform water analysis on water/wastewater as required by the State of California; performs boiler water and cooling tower chemical tests, including pH, alkalinity TDS, etc., to monitor and control growth of organisms in water.