6.8 Supervision, Training, SOP Development & Resource Optimization

Supervision, Training, SOP Development & Resource Optimization

The ABC Water Treatment criteria list "perform supervisory duties" with seven named components - determining and assigning work schedules and tasks, enforcing policies and safety procedures, conducting performance evaluations, resolving grievances, making appropriate hiring decisions, initiating and investigating disciplinary actions, and coordinating schedules so plant resources achieve project objectives - plus "train staff/contractors on safety requirements," "develop and maintain SOPs," and "optimize the use of energy and chemicals." The wastewater criteria add "adhere to SOPs" and "establish and/or update SOPs."

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1. Scheduling a Licensed Facility

Scheduling at a water or wastewater plant is not ordinary staffing, because the minimum attendance is a legal requirement tied to the facility class.

Recall the Virginia requirements:

• Class 1 waterworks: at least two operating staff in attendance whenever the plant is operating, at least one an operator.
• Class 2 waterworks: one operator whenever the plant is operating.
• Class 4 waterworks: three days per week, daily if membranes on surface water or GUDI.
• Class 5 and 6 waterworks: twice a month without treatment, weekly with treatment.
• Wastewater works: the recommended licensed-operator hours in Table 1 of 9VAC25-790-290, refined case by case and written into the O&M Manual.

The schedule must hold that coverage through vacation, sick leave, training, turnover, and emergencies. That means:

• Depth at the required class. If only one person holds the Class 2 license, the facility is one resignation from noncompliance. Building the next license holder is a scheduling obligation, not a nicety.
• A documented on-call rotation with defined response expectations.
• Overtime and fatigue management. A 16-hour shift on a plant with chlorine gas and confined spaces is a safety decision, not a staffing decision.
• Shift handoff. A structured turnover - process status, what changed, what is out of service, what to watch, what is pending - prevents the most common category of avoidable error.

Under 12VAC5-590-461 B, if a classified waterworks is without its required operator, the owner must notify VDH within 24 hours. That obligation is what makes coverage planning a compliance activity.

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2. Supervision

Performance evaluation

Useful evaluations are specific, documented contemporaneously, and tied to observable behavior and results - not annual impressions. For operators, the relevant dimensions are process performance, safety behavior, record quality, response to abnormal conditions, equipment care, and development toward the next license class.

Progressive discipline

The standard ladder is verbal counseling, written warning, suspension, termination, documented at each step, with the employee given the standard, the gap, and the expectation. Two carve-outs matter in this industry:

• Serious safety violations - bypassing a lockout, entering a permit space without a permit, defeating an interlock - may justify immediate severe action because the consequence is death.
• Data falsification is not a performance issue to be coached. It is misconduct with criminal and licensing consequences that must be investigated immediately.

Hiring and workforce development

The water sector's workforce is aging, and Virginia's licensing ladder is long - a Class 1 license requires a Class 2 license plus three years of experience for a high school graduate. That means:

• Hire for aptitude and attitude, and train for the license.
• Map the license path for each employee: what class, what experience, what education substitution, what timeline.
• Use the substitution provisions deliberately - 18VAC160-30-130 allows college credit at one month of experience per semester hour and board-approved training courses at one month per training credit, up to the 50 percent ceiling.
• Partner with Virginia community colleges, the Virginia Rural Water Association, and the Virginia Water Environment Association for training that counts both as CPE and as experience substitution.
• Cross-train. A plant where one person knows the SCADA system, one knows the digester, and one knows the lab is three people away from a crisis.

Contractors and visitors

The operator's duty extends to people who do not work for the utility:

• Pre-job hazard briefing covering the site's specific hazards - chlorine, confined spaces, energized equipment, biological hazards, traffic.
• Verify training and qualifications for confined space entry, hot work, excavation competent person, and electrical work.
• Escort and control access to process and chemical areas.
• Coordinate lockout/tagout between the utility and the contractor - the multi-employer lockout coordination is where serious injuries happen.
• Permits issued and closed for hot work, confined space, and excavation.

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3. Standard Operating Procedures

What makes an SOP usable

An SOP is written for the person who has to do this at 2 a.m., in the rain, having done it once six months ago. That standard dictates the structure:

1. Title, number, revision, effective date, and approver.
2. Purpose - one sentence.
3. Scope - when it applies and when it does not.
4. Safety - hazards, required PPE, energy isolation, permits required. Before the steps, not after.
5. Materials and tools - including the specific chemical, part number, or setting.
6. Numbered steps in the order performed, one action per step, with the actual values ("open V-104 two turns," not "open the valve slightly").
7. Acceptance criteria - how you know it worked.
8. Troubleshooting - what to do when the expected result does not occur, and when to stop and call.
9. Records - what to log and where.
10. References - the manual, the drawing, the regulation.

What makes an SOP fail

• Written by someone who has never performed the task.
• Describes an idealized plant rather than the one that exists.
• No revision date, so nobody knows whether it reflects last year's valve replacement.
• Stored where the work is not done.
• Never trained on.
• Contradicted by how the job is actually performed - which trains everyone that SOPs are decorative.

Have the people who do the work write the draft, and have someone who has never done it perform the task from the document. Every gap surfaces immediately.

Management of change

Any change to process, equipment, chemicals, software, or procedure should pass through a defined review before implementation:

• What is changing and why?
• What could it affect - other processes, safety systems, permit compliance, staffing, alarms?
• What must be updated - SOPs, drawings, the O&M manual, the emergency response plan, the CMMS, alarm setpoints, the sample siting plan?
• Who must be trained, and how is that documented?
• Who approves, and how is it verified afterward?

Undocumented change is how a plant ends up with SOPs describing equipment that no longer exists and alarm limits nobody can explain.

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4. Root Cause Analysis

When something goes wrong, the temptation is to identify who did it. That almost never prevents recurrence.

Method

1. Establish the facts - a timeline from records, not from memory: SCADA trends, logs, alarms, work orders, lab results.
2. Ask why repeatedly. Keep going until the answer describes a system rather than a person.
3. Distinguish:
   • Direct cause - the immediate physical event;
   • Contributing causes - conditions that allowed it;
   • Root cause - the system weakness whose correction prevents recurrence.
4. Corrective actions with an owner and a due date, verified as effective afterward.

Worked example

A chlorine overfeed reached the distribution system.

• Why? The metering pump ran at full output for six hours.
• Why? The residual analyzer read low and the control loop increased output.
• Why? The analyzer sample line was plugged.
• Why? The sample line had not been cleaned since installation.
• Why? The preventive maintenance program contains no task for sample line cleaning, and there is no high-output alarm or maximum-dose limit on the control loop.

The root causes are a PM program gap and a missing control safeguard. Disciplining the operator on shift would change nothing. Adding a quarterly sample line PM task, a maximum output limit on the loop, and a deviation alarm between calculated dose and measured residual prevents recurrence.

Near misses deserve the same analysis. A near miss is a free lesson, and a culture in which near misses are reported without blame is the strongest available predictor of a plant that does not have serious incidents.

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5. Structured Energy and Chemical Optimization

The ABC criteria name "optimize the use of energy and chemicals" as an administrative task. Doing it as a program rather than as occasional tinkering:

The sequence

1. Measure and baseline. kWh per MG, kWh by process area, chemical lb per MG, and cost per MG - monthly, normalized for flow and season. Without a baseline, savings are anecdotes.
2. Benchmark against similar facilities. AWWA and WEF publish benchmarking data; Virginia peer utilities are often more useful.
3. Find the big consumers. At a wastewater plant, aeration is 45 to 60 percent of electricity. At a water plant, pumping dominates. Optimize the largest item first.
4. Change one variable at a time, hold it through at least one full process detention time, and measure.
5. Validate against compliance, always: turbidity, CT and log inactivation, distribution residual, effluent limits, and permit conditions. A saving that costs a log of inactivation is not a saving.
6. Lock in the gain - update the SOP, the setpoint documentation, and the operator training. An optimization that reverts at the next shift change was a demonstration, not an improvement.
7. Re-baseline and repeat.

The high-yield measures

Energy

• Ammonia-based aeration control or, at minimum, well-tuned dissolved oxygen control at 1.5 to 2.5 mg/L rather than 4 mg/L.
• Most-open-valve blower pressure control.
• Pump efficiency testing and correcting worn or mis-applied pumps; VFDs where flow varies, since power varies with the cube of speed.
• Demand charge management - staggering starts, avoiding coincident peaks.
• Digester gas cogeneration where gas production supports it.
• Premium efficiency motors at replacement, and right-sizing rather than replacing in kind.

Chemicals

• Seasonal jar testing rather than an unchanged historical dose.
• Coagulant selection - polyaluminum chloride's lower alkalinity consumption often eliminates a supplemental base feed entirely.
• Moving the chlorine application point downstream to cut both dose and DBP formation.
• Two-point phosphorus dosing rather than a single large upstream dose.
• Verifying delivered strength, especially hypochlorite, so the plant is not paying for water.
• Drawdown-calibrating every feed pump - a pump delivering 15 percent more than the dial indicates is 15 percent of that chemical's budget, invisibly.

The unifying discipline is the same one that governs everything else in this chapter: measure it, change one thing, verify it against compliance, document it, and train on it.