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Inflow and Infiltration Technician

Maryland, MD Full Time
POSTED ON 4/15/2026
AVAILABLE BEFORE 6/15/2026
The hiring salary for this position is $53,103 - $56,171 annually ; full salary range for this position is $53,103 - $80,929 annually.
Job Summary:  
Assists the I&I Supervisor with the Inflow and Infiltration Abatement Program, the Manhole Rehabilitation Project, the Sewer Reline Project, and Right-of-Way Clearing Project, and with the ongoing monitoring of installation of grease interceptors and mandatory maintenance reports. Position reports to the I&I Supervisor.Essential Functions:
  1. Coordinates with the I&I Team and Wastewater Collections Superintendent or Senior Wastewater Operator for the placement of I&I measuring devices to record sewage flows in various parts of the sewer system, uses information collected to determine the amount of I&I entering the system.
  2. Assists with the monitoring and evaluation of the effectiveness of I&I rehabilitation projects and assists with records associated with the Commission’s I&I program.
  3. Assists with the monitoring and inspection of grease traps.
  4. Assists with the collection and integration of field-acquired GPS data of various water and sewer appurtenances.
  5. Performs preventive/corrective maintenance work on the sewer system.
  6. Assists in sewer backup calls.
  7. Televises sewer and service lines, manholes, and cleanouts to identify potential problem areas.
  8. Fields questions from the public, both in person and over the telephone, concerning responsibilities of the Department. Passes on the questions to others within the Department when necessary.
  9. Required to perform standby/on-call duties for the Collections Department 
Other Duties:
Performs other duties as assigned.Required Knowledge, Skills, and Abilities (These are pre-employment KSA that apply only to Essential Job Functions.):
  1. Ability to gain thorough knowledge of St. Mary’s County Metropolitan Commission policies and procedures.
  2. Ability to act as a representative of St. Mary’s County Metropolitan Commission to the public.
  3. Ability to gain knowledge of St. Mary’s County Metropolitan Commission water and wastewater system and plant operations, including those that pertain to I&I and industrial use.
  4. Ability to gain knowledge of department practices and procedures.
  5. Ability to effectively communicate with other staff members; ability to coordinate and maintain effective working relationships with other professionals.
  6. Ability to accurately record and report data.
  7. Ability to use the computer and related software to accurately record and report data.
  8. Knowledge of safety regulations and established procedures for operating, repairing, removing, and installing equipment/materials as well as for ensuring safety
  9. Knowledge of relevant maintenance and repair practices and procedures as they relate to sewer lines and the operation of a commercial vehicle.
  10. Ability to use GPS equipment and GIS mapping software.
  11. Ability to wear appropriate PPE for confined space entry, including respiratory gear.
  12. Ability to obtain State of Maryland Wastewater Collection Class 2 certification within 2 years.
Required Qualifications (Note: Any acceptable combination of education, training and relevant experience that provides the above knowledge, abilities and skills may be substituted on a full-time year for year basis.):
Training and/or Education:
High school diploma or G.E.D. and two or more years of job-related experience
Experience:
Or equivalent technical training, education, and/or experience
Licenses or Certificates:
Eligible to obtain Maryland Class B CDL with Tanker and Air Brake Endorsements within 1 year
NASSCO Certification (PACP, LACP, MACP) required within 6 months
Wastewater Collections Class 2 License within 2 years 
Special Requirements:
None
Physical Demands:
Work requires occasional strenuous effort.  For example, bending and lifting tools, equipment, or materials of 30 to 60 pounds.
Unusual Demands:
Work environment involves high risks with exposure to potentially dangerous situations or unusual environmental stress which require a range of safety and other precautions, e.g., aggressive human behavior, extreme outdoor weather conditions, confined workspace, or similar situations where conditions cannot be controlled.
__________________________________________________________________________________________
Nothing in this description restricts management's right to assign or reassign duties and responsibilities to this job at any time. Job descriptions are written as a representative list of the ADA essential duties performed by the entire job classification. They are not intended to include every possible activity and task performed in every position.
The Metropolitan Commission is an Affirmative Action/Equal Opportunity Employer.   All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity and sexual orientation, national origin, disability status, protected veteran status, or any other characteristic covered by law.

Salary : $53,104 - $80,929

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