Established: 10/99
FLSA: Non-Exempt
EEO: 8



Under close supervision, performs a variety of unskilled and semi-skilled tasks assisting staff working in plant operations, collections system maintenance, biosolids application, surface water management, erosion control, and industrial pre-treatment activities; and to do other work as required.


The Department of Water Environment Services manages and operates the County's utility service districts, including sewage facilities, collection systems, pumping stations, treatment plants and surface water management.

The Water Environment Services Assistant is an entry level position primarily oriented to performing unskilled and semi-skilled tasks to assist staff monitoring plant operations, performing collections systems work, applying biosolids to fields, performing surface water management activities including erosion control, and monitoring industrial pre-treatment programs. The incumbents perform general building and grounds maintenance at wastewater treatment plants and facilities. They assist in operating and maintaining surface water facilities and structures and collections systems infrastructure. The Water Environment Services Assistant provides assistance to higher level staff and learns how to perform the work of the higher level classifications.

The Water Environment Services Assistant differs from the Wastewater Operator 1 and Collections System Technician 1 by their requirements for treatment or collections certification, possession of a commercial driver’s license, and complexity of tasks. The Water Environment Services Assistant differs from the Biosolids Applications Technicians by the latter’s requirement for a Class A CDL with a tanker endorsement.


Duties may include but are not limited to the following:

  1. Performs basic plant maintenance activities; washes and cleans treatment plant equipment; assists in maintaining and operating collection system, sampling, and biosolids application equipment including pumps and tanks; cleans plant, collection system, and storm water, structures; operates high pressure hoses.
  2. Operates light motorized equipment such as carts, pressure washers, trash pumps, steam cleaners, portable generators, and grounds maintenance equipment including mowers, trimmers, mechanical weed trimmers, etc.
  3. Operates heavy motorized equipment including but not limited to pick-up trucks, fork lifts, and biosolids disposal equipment.
  4. Paints structures and equipment using brush, roller, and power sprayers; cleans and prepares surfaces to be painted; and cleans painting equipment after use.
  5. Performs general custodial duties at the facilities; maintains grounds by mowing grass, trimming shrubs and trees; plants, maintains, and weeds flower beds and landscape plantings.
  6. Assists in maintaining records of equipment and materials used on jobs.


Working knowledge of: Methods, tools, and practices of the mechanical and maintenance trades; basic arithmetic; English grammar, spelling and punctuation; safety rules and practices for working in an industrial environment; basic custodial practices; basic grounds keeping techniques; basic mechanical maintenance; and basic sampling techniques.

Skill to: Work in high or confined spaces; read and understand technical equipment manuals; understand oral and written instructions; perform heavy physical labor for extended periods in adverse weather conditions; keep accurate records and compose simple written and oral reports; communicate effectively, both orally and in writing; establish and maintain effective working relationships with other staff.


Duties require physical labor, including walking, reaching, squatting, kneeling, bending, balancing, climbing, shoveling, fine motor control, and ability to lift up to 50 pounds, carry, and push/pull up to 70 pounds. Duties also involve exposure to bacteria, viruses and toxins in wastewater, chemicals, exhaust fumes and dust, loud noises, and vibration. Some duties involve exposure to adverse weather conditions and hazardous locations, such as streets, live sewers, confined underground areas and on elevated platforms.


Possession of CPR/FA and flagging certifications within one year of hire.

Incumbents may perform after-hours emergency response on a call-out basis.

Employment is contingent upon passing a post-offer physical assessment. Accommodation requests will be reviewed on an individual basis in compliance with State and Federal legislation.

Driving is required for County business on a regular basis or to accomplish work. Incumbents must possess a valid driver's license, and possess and maintain an acceptable driving record throughout the course of employment.


Any satisfactory combination of experience and training that demonstrates possession of the required knowledge and skills.

Edited: 06/16