INSTRUCTIONS
For Completion of
REPORT ON OPERATION AND
MAINTENANCE OF WASTEWATER
TREATMENT PLANTS
U.S. ENVIRONMENTAL PROTECTION AGENCY
Office of Water Program Operations
Washington, D.C. 2O46O
MARCH 1974
EPA Form 7500-5A (3-74)
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INSTRUCTIONS
For Completion of
REPORT ON OPERATION AND MAINTENANCE
OF WASTEWATER TREATMENT PLANT
(EPA Form 7500-5)
U.S. ENVIRONMENTAL PROTECTION AGENCY
OFFICE OF WATER PROGRAM OPERATIONS
WASHINGTON, D.C. 2M6Q
MARCH 1974
EPA Form 7SOO-5A (3-74)
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INTRODUCTION
The instructions in this booklet are presented to assist in
the completion of EPA Form 7500-5, "Report on Operation and
Maintenance of Wastewater Treatment Plant." They reflect recent
revisions to the form that have been made to allow for the
inclusion of design and NPDES permit data and to improve the
useability of information on plant operations and deficiencies.
It should be recognized that no one form can satisfy the
requirements for all inspection needs. Form 7500-5 should be
viewed as a basic form covering most of the essentials required
in any inspection and it should be supplemented, as necessary, by
written reports to reflect the particular circumstances of any
given inspection. The form can serve as a procedural guide so
that a plant inspector can document his inspection of a plant,
covering all sections in a logical sequence.
It is essential that the collection of plant operational data
and information on operating deficiencies be improved to provide
a sound planning basis for future operation and maintenance
programs and activities. Therefore, inspectors are urged to make
every effort to respond accurately to all questions on the form,
utilizing all available sources of information.
Any comments or questions regarding the form or these
instructions should be directed to:
U.S. Environmental Protection Agency
Office of Water Program Operations (AW 446)
Municipal Operations Branch
Washington, D.C. 20460
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Form Approved
OMB No. 158-R0035
INSTRUCTIONS FOR COMPLETION OF EPA FORM 7500-5 (4-72)
"REPORT ON OPERATION AND MAINTENANCE OF WASTEWATER TREATMENT PLANT"
A. GENERAL INFORMATION
1. PLANT
(a) NAME - Use the name considered "official" which
would ordinarily be used on reports, etc.
(b) OWNER - The responsible public entity, such as
community, city, metropolitan agency, sanitary
district, township or county, etc.
(c) LOCATION - This should ordinarily be the mailing
address of the facility, including the city,
township or county, and state in which the
facility is located. Other specific
instructions to locate the plant would be
placed in a portion of item A.9.
2. TYPE OF PLANT
--Primary
--Trickling Filter
--Standard or High-Rate
(Standard - less than 150 gpd/ft2 and
less than 25 Ib. BOD/1Q3 ft3 /day;
trickling filters operating at loadings
in excess of one or both of these figures
are considered high-rate.)
--Single-stage or Two-stage
--Activated Sludge
—Conventional
(approximately 4-8 hours of aeration with
approximately 25% sludge return)
--Tapered Aeration
--Step Aeration
--Complete Mix
(Step aeration and sludge return)
--Contact Stabilization
(Provides aeration period of less than 2
hours in contact tank)
--Extended Aeration
(Greater that 24 hours)
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—Phys i cal-Chemi cat
(Specify type)
-Sand Filter
—Waste Stabilization Pond
—Oxidation Ditch
(Sludge digestion or auto-oxidation)
—Aerated Lagoon
(Surface or submerged aeration)
—Pure Oxygen (80%+)
3. PROJECT NO.
List the EPA Grant Project number, if applicable,
for this plant.
4. AVERAGE DESIGN FLOW (mgd)
Enter the flow in million gallons per day (mgd) for
which the facility was designed.
5. DESIGN POPULATION EQUIVALENT
Enter the daily BOD process loads contributed by
the service area expressed in population
equivalents (0.17 Ibs. per capita per day) for
which the plant was designed.
6. COLLECTION SYSTEM
Check "combined" when it is known that the service
area contains combined sewers that were designed to
transport both surface water runoff and sanitary
wastewaters.
Check "separate" when all of the service area
contributing to the treatment plant is served by
sewers designed to carry the sanitary and other
was-tewaters only. For separate sewers, it is
assume^ that allowance for groundwater infiltration
has been-made in the design"Therefore a sewer can
be considered separate even though it may be
affected by groundwater infiltration.
Check "both" when the collection system contains
combined and separate sewers.
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DATE PRESENT PLANT BEGAN OPERATING
Enter the date the present plant was placed in full
operation (date of initial start-up) and/or the
date of expansion, significant modification or
conversion to another type of process.
8. STATE PERMIT NO.
This number is the 9 -character NPDES permit
identifier given by the Federal or state agency, to
identify the operating permit for the facility.
9. FLOW DIAGRAM OR WRITTEN DESCRIPTION OF PLANT UNITS IN
FLOW SEQUENCE"
Describe or provide a simple flow diagram giving
sequence of processing units. Include bypass and
return flow lines. Any unusual or unique design
features should be identified.
Where possible, the following standard nomenclature
should be used:
Pretreatment
Bar Screens
Mechanical Screens
Comminutor or Barminutor
Grit Removal
Gri nder
Grease Removal
Aerated Grit Removal
Primary Treatment
Primary Settling (plain)
Primary Settling
(pre-aeration)
Imhoff Tank
Secondary Treatment
Secondary Settling
Stabilization Pond
Aerated Lagoon
Standard-Rate Trickling
Filter(s)
Advanced Treatment
Physical Chemical Treatment
Nitrification
Denitrification
Activated Carbon Filter
Intermittent Sand Filter
Disinfection
Solids Handling
Anaerobic Digestion
(one- 01*^0- stage)
Aerobic Dfgestion
Sludge Drying Beds
Centrifuge
Vacuum Filter
Thickening
Incineration
Landfill
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(Secondary Treatment Con't)
High-Rate Trickling
Filter(s)
Roughing Trickling
Filter(s)
Plastic Media Trick-
ling Filter(s)
Conventional Acti-
vated Sludge
High-Rate Activated
Sludge
Tapered Aeration A.S.
Extended Aeration A.S.
Step Aeration - A.S.
Contact Stabilization A.S.
Effluent Disposal
Discharge to receiving
surface water
Deep Well
Shallow Well
Re-use
Spray Irrigation
Flood Irrigation
10. RECEIVING WATERS
Identify the minor and major receiving streams,
lakes, etc.
11. PERTINENT STREAM STANDARDS AND/OR USES OF THE RECEIVING
EATERS"
Minimum objectives such as D.O. or other applicable
water quality standards established.
Contact recreation such as swimming, water skiing,
etc.
Water supplies such as municipal, industrial,
irrigation, etc.
Fishing, shellfish-taking, etc.
Boating, navigation.
Verify by relating controlling state and/or Federal
requirement.
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12. EFFLUENT STANDARDS AND/OR REQUIREMENTS FOR STATE
OPERATING PERMIT
Enter a brief list of the prime controlling
effluent quality objectives for the treatment
facility.
If an NPDES permit to operate has been issued to
the facility by the Federal or state agency, give
the pertinent permit conditions including effluent
limitations, pretreatment requirements (if
applicable) and any significant special or general
conditions.
B. CURRENT PLANT LOADING
1. ANNUAL AVERAGE DAILY FLOW RATE (mgd)
Calculate and enter the average of monthly average
flow rates for one year.
2. PEAK FLOW RATE (mgd)
The dry weather peak flow rate (mgd) is the maximum
daily flow rate in the month having the minimum
average flow for the reporting period.
The wet weather peak flow rate (mgd) is the maximum
daily flow in the month having the maximum average
flow for the reporting period.
NOTE: It is possible that dry
weather peak flow rate will be
greater than the wet weather
peak flow rate because of
artificial recharge, irriga-
tion, etc.
3. POPULATION SERVED
This should be the most recent estimate of the
actual population being served by this waste
treatment plant. This is not an area population
figure.
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4. ANNUAL AVERAGE FIVE-DAY BIOCHEMICAL OXYGEN DEMAND (BOD^)
OF THE RAW SEWAGE AS mgTT
This is generally determined from sampling at the
plant influent. Care should be exercised in
assuring that the samples do not contain any return
from the treatment systems in the plant.
5. ANNUAL AVERAGE SUSPENDED SOLIDS OF RAW SEWAGE IN mg/1
Sample should generally be taken at same location
as item 4, above.
6.
PRINCIPAL TYPES OF INDUSTRIAL WASTE DISCHARGED TO
MUNICIPAL SYSTEMS
Possible sources of industrial wastes discharged to
municipal systems are as follows:
Pulp and paper mills
Meat product and rendering
processing
Dairy product processing
Canned and preserved fruits
and vegetables processing
Cement manufacturing
Electroplating
Inorganic chemicals
manufacturing
Soap and detergent
manufacturing
Fertilizer manufacturing
Iron and steel manu-
facturing
Cotton ginning
Steam electric powerplant
Leather tanning and
finishing
Rubber processing
Paperboard, builder's
paper and board mills
Grain mills
Sugar processing
Textile mills
Feedlots
Organic chemicals
manufacturing
Plastic and synthetic
materials manufacturing
Petroleum refining
Nonferrous metals
manufacturing
Phosphate manufacturing
Ferroalloy manufacturing
Glass and asbestos
manufacturing
Timber products pro-
cessing
7. POPULATION EQUIVALENT (BOD) OF INDUSTRIAL WASTES
Subtract known population as BOD equivalents from
total raw BOD expressed as population equivalents
(Use 0.17 Ibs. per capita per day). The procedure
for calculation follows:
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(a) Multiply item B.4 (BOD5 in mg/1) by item
B.I (average daily flow in mgd)
(b) Multiply (a) above by 8.34
(c) Divide (b) above by 0.17
(d) Subtract item B.3 (population served)
from (c)
(e) Enter (d) in Block B.7.
8. POPULATION EQUIVALENT (SS) OF INDUSTRIAL WASTES
Use procedure in 7 above with SS (Item 5) and enter
result in block B.8.
9. VOLUME OF INDUSTRIAL WASTE (mgdj
This is the industrial fraction, if any, of the
total raw flow to the waste treatment plant.
10. INFILTRATION PROBLEMS
Indicate the extent of the problem (major, minor),
the cause (structural and joint failures, etc.),
investigations of the problem (smoke test, etc.),
type of corrective action, if any, (pipe sealing,
replacement, etc.).
Flows from sewers designed for both storm and
sanitary flows should not be considered infil-
tration problems.
Note the following definitions:
Infiltration - The discharge of groundwater
into sewers, through defects in pipelines, joints,
manholes, or other sewer structures.
Inflow - The discharge of any kind of water
into sewer lines from such sources as roof leaders,
cellar and yard-area drains, foundation drains,
commercial and industrial so-called "clean water"
discharges, drains from springs and swampy areas,
etc. It does not include "infiltration" and is
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distinguished from such wastewater discharges, as
previously defined.
Infiltration/Inflow - A combination of
infiltration and inflow wastewater volumes in sewer
lines that permits no distinction between the two
basic sources and has the same effect of usurping
the capacities of sewer system and other sewer
system facilities.
C. PLANT PERFORMANCE
7. LABORATORY ANALYSIS
(a) REPORTING PERIOD
Data reported shall be on a complete calendar-
month basis; i.e., the reporting period shall
begin with the first complete calendar month
not previously reported and end with the last
complete calendar month prior to the current
inspection, (e.g., the previous report ended
with 8/73 and the date of the current
inspection is 4/30/74; therefore, the
reporting period is 9/73 to 3/74, inclusive.)
(b)&(c) REPORTING PROCEDURE
The numbers reported for "Actual Plant
Performance Data" represent the average for
the reporting period; inasmuch as the
reporting period is on a complete month basis,
"the average for the reporting period" may be
obtained by summing the average value for each
month in the reporting period and dividing
average value by the total number of months
reported.
(d) PLANT DESIGN DATA
Enter the average monthly values which the
plant was designed to achieve. Especially
important are the values for flows, 6005,
suspended solids, and settleable solids; any
additional design values, such as nitrogen,
etc., should be listed, if applicable.
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(e) NPDES PERMIT REQUIREMENTS
Enter the monthly average values which the
NPDES permit requires the plant to achieve.
(f) DESIGN EFFICIENCY
Compare the actual plant performance values to
those values entered under Design Data and
check the appropriate boxes.
(g) PLANT COMPLIANCE WITH PERMIT REQUIREMENTS
Compare the actual plant performance values to
those values entered under Permit Requirements
and check the appropriate boxes.
Monthly Items
(1) FLOW (mgd)
Column (c) - Enter the average flow (in mgd)
actually occurring during the
reporting period.
Column (d) - Enter the flow rate (in mgd)
which the plant was designed to
treat (average daily flow
rate).
Column (e) - Enter the average daily flow rate
(in mgd) specified by the NPDES
permit.
Column (f) - If column (c) is less than or
equal to column (d), check
"yes"; if column (c) is greater
than column (d), check "no".
Column (g) - If column (c) is less than or
equal to column (e), check
"yes"; if column (c) is greater
than column (e), check "no".
(2) PEAK FLOW (mgd)
Column (c)
Enter the maximum flow (mgd)
actually occurring on a single
calendar day during the
reporting period.
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Column (d) -
Enter the maximum daily flow
(mgd) the plant was designed to
treat.
Column (e) - Enter the maximum daily flow
(mgd) specified by the NPDES
permit.
Column (f) - If column (c) is less than or
equal to column (d), check
"yes"; if column (c) is greater
than column (d), check "no".
Column (g) - If column (c) is less than or
equal to column (e), check
"yes"; if column (c) is greater
than column (e), check "no".
(3) SETTLEABLE SOLIDS (ml/I)
Column (c) - Enter the average settleable
solids (ml/I) in the plant
influent and effluent for the
reporting period and percent
removal
influent - effluent
influent
X 100
Column (d) - If settleable solids removal was
specified in the plant design,
enter the following, when
applicable: the average
influent settleable solids
(ml/1) the plant was designed
to treat, the average effluent
settleable solids (ml/I)
specified by the design, and/or
the percent removal
influent - effluent
influent
X 100
Column (e) - If a requirement for settleable
solids removal is specified by
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the NPDES permit, enter either
the average allowable effluent
settleable solids (ml/1) or the
required percent removal,
whichever is applicable.
Column (f) - If the actual effluent value
(ml/I) or the actual percent
removal ((%) column (c)) meets
the requirements of the
corresponding value in column
(d), check "yes", if the actual
effluent value (ml/I) or the
actual percent removal ((%)
column (c)) does not meet the
requirements of the corres-
ponding value in column (d),
check "no".
Column (g) - If the actual effluent value
(ml/I) or the actual percent
removal ((%) column (c)) meets
the requirements of the
corresponding value in column
(e), check "yes"; if the actual
effluent value (ml/1) or the
actual percent removal ((%)
column (c)) does not meet the
requirements of the
corresponding value in column
(e), check "no".
(4), (5), (10), & (11) - SUSPENDED SOLIDS, BODs, NITROGEN.
& PHOSPHORUS"
Follow the same procedure that is used for
settleable solids.
(6), (7), (8), & (9) - DISSOLVED OXYGEN, CHLORINE RESIDUAL.
COL I FORM &"pTT
Follow the same procedure that is used for
Settleable Solids, with the exception that
only effluent values should be considered
(i.e., influent and percent removal do not
apply).
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2. PLANT RECORDS
ARE MONTHLY OPERATING RECORDS FILED WITH STATE
AGENCY?
This question should be answered by either a
responsible plant representative or state
water pollution control agency representative.
3. DOES PLANT HAVE ALTERNATE ELECTRIC POWER SOURCE?
Dual Feed- Indicates that two separate and
independent sources of electric power are
provided to the complete works. (A
standby switch panel is not dual feed).
Generator- Would indicate an on-site stationary
power source, such as a diesel electric
generator* etc.
None - Would indicate only a single source
of power available to operate the plant.
4. ADEQUATE ALARM SYSTEM FOR POWER OR EQUIPMENT FAILURES?
See "Federal Guidelines - Design, Operation and
Maintenance of Wastewater Treatment Facilities".
5. EQUIPMENT PROGRAM
Under this item the three sub-items are the
essential elements of a complete maintenance
management system. Together, these elements
provide for planning maintenance work, accounting
for performance of work and assuring adequate
inventory control on spares and consumables.
Check "adequate" or "inadequate" for each of the
following:
(a) Routine Maintenance Schedules - Check
"adequate"if the plant's system incorporates
equipment lists and corresponding equipment
labeling; preventive maintenance schedules and
standardized maintenance procedures; a work
order system for emergency maintenance and
repairs and a method for assigning both
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preventive and unscheduled maintenance to
appropriate personnel.
(b) Records of Maintenance, Repairs, and Replacement
Check "adequate" if records maintained account
for all major preventive and emergency
maintenance actions, dates performed, time and
money expended and personnel assigned.
(c) Spare Parts Inventory - Check "adequate" if a
system for maintaining a continuous inventory
of replacement parts, tools, chemicals, and
other consumables is maintained.
6. IS PLANT EFFLUENT BEING CHLORINATED?
If another type of disinfection is employed, so
indicate.
7. DOES SEWAGE BYPASS PLANT IN WET WEATHER?
This refers to bypass provisions at the plant. Do
not confuse this question with item 14, below.
8. DOES SEWAGE BYPASS PLANT IN DRY WEATHER?
Self-explanatory.
9. AGENCIES NOTIFIED OF EACH BYPASS
Enter none if a report is not made at the time of
each bypass. If only for certain bypasses, give
detai1s.
10. BYPASS FREQUENCY (MONTHLY)
Indicate the average number of wet and dry weather
bypasses that occur each month.
11. AVERAGE DURATION OF BYPASS (HRS.)
Self-explanatory.
12. REASON FOR BYPASSING.
Some common reasons for bypassing are: surcharged
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collection system, insufficient pumping capacity,
hydraulically overloaded plant, equipment failures,
construction problems.
13. CAN BYPASS SEWAGE BE CHLORINATED?
As a minimum, all plants, even in emergency
situations, should provide at least the equivalent
of primary treatment and disinfection.
NOTE: Unless such provisions as
above are made for bypasses, plant
rating in item 6.4 cannot be
acceptable.
14. DO SEWER OVERFLOWS OCCUR UPSTREAM OF PLANT?
This is to be interpreted as meaning relief
overflows from combined sewers, other surcharged
sewers or facilities, or upstream equipment
failures.
15. ANY ODOR COMPLAINTS BEYOND PLANT PROPERTY?
Explain briefly in space allotted.
16. OBSERVED APPEARANCE OF EFFLUENT, RECEIVING STREAM OR
DRAINAGE HAY"
Effluent - Clear, turbid, color, foam, suds, visible
discharge plume, other.
Receiving Waters - Clear, turbid, color, odors, other.
17. IS A- CONSULTING ENGINEER RETAINED OR AVAILABLE FOR
CONSULTATION ON OPERATION AND MAINTENANCE PROBLEMS?
The important point is to indicate whether there is
a consulting engineer available for assistance and
the basis upon which his services can be attained.
18. TRAINING
In those situations where the Inspector determines
that the operator or other personnel could benefit
from additional training and such training is not
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available, he may suggest a correspondence course
such as, "Operation of Wastewater Treatment Plants,
a Field Study Training Program," prepared by
California State University, Sacramento, or other
similar courses. The above-mentioned course may be
obtained by writing to the program director:
Professor Kenneth Kerri
Department of Civil Engineering
California State University, Sacramento
600 Jay Street
Sacramento, California 95819
19. IS LAB TESTING ADEQUATE FOR THE CONTROL REQUIRED FOR
THIS SIZE AND TYPE OF PLANT AND USES OF RECEIVING
WATERS?
If no, explain. The following publications may be
useful for guidance in assessing adequacy of
laboratory control.
(1) "Procedural Manual for Evaluating the
Performance of Wastewater Treatment
Plants."
(2) "Estimating Laboratory Needs for
Municipal Wastewater Treatment
Facilities."
Other documents which provide pertinent guidance
may be obtained from state water pollution control
agencies, regional or basin regulatory agencies,
etc.
NOTE: This block must be checked
inadequate if no data are available
to complete at least items
C.l.(c)(3) through C.l.(c)(5) of
this form unless recent corrective
action has been taken to assure that
such data will be available in the
future.
20. EXPLAIN MAIN DIFFICULTY EXPERIENCED WITH INDUSTRIAL
WASTES
Describe types of waste effects on plant operations
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and whether the plant needs assistance for
assessment of related problems.
21. PERMANENT RECORD FILE:
(a) PLANT OPERATION AND MAINTENANCE MANUAL
The objective here is to note whether the plant
personnel have an O&M manual for their general use.
If there is no manual tailored for that specific
plant, or if the manual is incomplete, as per the
Federal Guidelines, this should be described in
item G.2.
(b) AS-BUILT PLANS AND SPECIFICATIONS
The as-built plans should be filed at the plant and
should show any substantive changes subsequent to
commencement of operation.
(c) MANUFACTURER'S OPERATION AND MAINTENANCE
SPECIFICATIONS"
Self-explanatory.
(d) FLOW CHARTS
A detailed schematic drawing or other portrayal
showing all hydraulic control features of the
facility should be exhibited at the plant.
22. ESTIMATED WEEKLY MAN-HOURS FOR LAB WORK INCLUDING
MAINTENANCE OF RECORDS AND PREPARATION OF REPORTS.
Self-explanatory.
23_ ANNUAL BUDGET FOR MAINTAINING AND OPERATING PLANT.
Provide dollar amounts from most recent calendar or
fiscal year.
24. STABILIZATION PONDS
(a) WEEDS CUT AND VEGETATION GROWTH IN PONDS REMOVED?
Self-explanatory.
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(b) BANKS AND DIKES MAINTAINED?
Note evidence of erosion and the source; such
as wind and wave action, rodent undermining,
etc.
(c) ANY REPORTS OF GROUNDwATER CONTAMINATION FROM POND?
If yes, note pertinent aspects of the problem.
(d) SEEPAGE REPORTED?
Self-explanatory.
(e) ADEQUATE DEPTH CONTROL?
There should be adequate flexibility for depth
control throughout the full range of design
depth.
(f) EFFLUENT RELEASE IS:
'(CONTINUOUS. INTERMITTENT. SEASONAL)
Self-explanatory.
D. LABORATORY CONTROL
The comments should generally cover the evaluator's
opinion as to the adequacy (quantitative and
qualitative) of the laboratory analysis shown in
relation to this particular plant. The comments should
also include an evaluation of the sampling procedures
and should indicate any additional analysis he believes
will provide significant increases in plant performance.
NOTE: If, Item C. 19 is checked
"inadequate" for any reason, the
causes for such an evaluation must
be discussed in this item. Further,
any such inadequacy will require
that the general plant rating in
item 6.4 be conditional or
unacceptable and some follow-up
action should be included in item
G.2.
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E. PLANT PERSONNEL INVENTORY
Inspectors must provide accurate and complete Inventory
data on present and authorized plant personnel. These
data will provide a base for projecting manpower and
training requirements at local and national levels and
will have a significant impact on the future direction
of manpower programs.
(a) PERSONNEL CLASSIFICATION
1. MANAGER/SUPERVISOR
Superintendent, Assistant Superintendent,
Maintenance Supervisor, Mechanical Maintenance
Foreman.
2. OPERATOR
Operator II, Operator I, Operations Super-
visor, Shift Foreman.
3. LABORATORY
Chemist, Laboratory Technician.
4. MAINTENANCE
Mechanic, Maintenance Helper, Electrician,
Painter.
a
5. OTHER PLANT WORKERS
Automotive Equipment Operator, Custodian,
Laborer.
6. OTHER OFFICE CLERICAL
Clerk-typist, Storekeeper.
(b) EMPLOYMENT
MAN-HOURS PER WEEK - Enter the number of hours
workedEytReworkers in each of the Personnel
Classifications during the week before the plant
inspection.
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NUMBER - Enter the number of employees in each
Personnel Classification currently employed by the
plant.
NUMBER BUDGETED - Enter the number of workers which
the plant is authorized to hire.
NOTE: The difference between number budgeted
"anT" the number in the previous column
represents actual job vacancies.
NUMBER RECOMMENDED - The number of employees in
each Personnel Classification which the Inspector
determines should be actually authorized for the
plant. Reference should be made to EPA and/or
state staffing guidelines for making this
determination. However, staffing guidelines should
be reconciled with unusual conditions noticed by
the inspector and/or factors identified by the
plant superintendent.
(c) CERTIFICATION
Number of workers in each of the Personnel
Classifications recommended or required by the
state to be certified. Reference should be made to
state certification guidelines.
ACTUAL NUMBER CERTIFIED - Self-explanatory.
(d) TRAINING REQUIRED NEXT 12 MONTHS
NEW HIRES - Include in this column the number of
workersrequired to fill current vacancies and any
projected vacancies created by normal turnover and
plant expansion. Also include any hires projected
to correct differences between number recommended
and current actual employment.
UPGRADING - This should be a joint determination of
the Inspector and the Plant Superintendent.
Upgrade training requirements will include: normal
refresher training, as well as training to overcome
skill deficiencies of present employees; upgrading
employees to meet needs of plant expansion, or to
fill jobs created by normal turnover; and to
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provide upgrading needed for certification
requirements.
F. GUIDE - VISUAL OBSERVATION - UNIT PROCESS
These items are presented here primarily to assist the
inspector in recording comments on specific processes as they
are evaluated in the course of inspecting the entire
facility.
The separate process ratings are to assist the evaluator
in selecting a general rating for the entire facility
(item G.4.).
6. NOTATIONS BY EVALUATOR
1. OPERATION AND MAINTENANCE PROBLEMS/DEFICIENCIES
The problem and deficiency areas presented here,
and the notations presented in F (page 5), will
assist the evaluator in the selection of a general
rating for the facility (item G.4.).
2. BRIEFLY DESCRIBE THE MAJOR PROBLEMS INDICATED ABOVE
List all items in need of follow-up. Indicate the
nature of actions necessary and by whom.
Assess any design deficiencies encountered and
identify related problems.
Include approximate date of follow-up Inspection to
determine progress in correcting deficiencies or
problems.
Use additional sheets if necessary.
3. PURPOSE OF INSPECTION
GRANT COMPLIANCE - This inspection is to determine
7?th~iconstructed facility complies with Federal
requirements for the provision of an operable
treatment works.
PERMIT COMPLIANCE - This inspection is to determine
Tfthefacility complies with the conditions
stipulated by the NPDES permit.
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FOLLOW-UP - This Inspection is to determine 1f
corrective actions have been taken on
deficiencies/problems, and to assess the
effectiveness of such actions.
4. GENERAL RATING
Check "Acceptable" only If all of the following apply:
The plant produces an effluent that meets an assigned
(where applicable) effluent - standard, permit
requirement, or regulation; plant efficiency is
consistently equal to or better than design efficiency;
and disinfection, when required, is consistently
adequate.
NOTE: Do not assign an "acceptable"
rating unless sampling and testing
procedures have been evaluated as
adequate and operational data is
available to complete items
C.l.(c)(3) through C.l.(c)(ll) as
required by the plant.
Raw or partially treated wastes are not bypassed more
than is absolutely necessary. When bypasses must be
made, at least the equivalent of primary treatment and
disinfection is provided.
Management, supervisory and key operational positions
are assigned to personnel qualified to assure continuity
of effective operations.
Staff size is adequate ; to continue operating plant
efficiently and to accomplish all required preventive
and emergency maintenance.
Training for new entry personnel and for upgrading or
updating present staff 1s available and accessible to
employees.
Check "Conditional" if the following exist but could be
remedied with minor corrective action.
The plant produces an effluent that is below, but is
consistently close to, the assigned (where applicable)
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effluent standard, permit requirement, or regulation,
and the plant is not under orders to upgrade treatment.
Plant staffing, maintenance management, or laboratory
sampling and procedures are substandard, and a trend
indicates that even though the effluent standards are
being met at present they will in all probability fall
below an acceptable standard in the near future.
NOTE: Sampling and testing proce-
dures must be adequate to
measure actual plant perform-
ance; data must be available to
complete applicable items in
C.l.(c)(3) through C.l.(c)(ll)
of this form; adequate
disinfection is being provided
(where required); treated
wastes are not bypassed more
than is absolutely necessary.
Check "unacceptable" if one or more of the following apply:
Operational performance is substantially below required
levels.
Plant bypasses more frequenlty than is necessary or
fails to provide the equivalent of primary treatment and
disinfection of bypasses.
No operational data is maintained.
The quality of sampling and testing procedures is
unacceptable.
FORM DISTRIBUTION INSTRUCTIONS
Copies of the form will be distributed as follows:
Yellow For plant and local use.
Orange State water pollution control agency.
White EPA Regional Office, Operation &
Maintenance Activity.
Pink EPA Headquarters, Municipal Opera-
tions Branch, Municipal Permits and
Operations Division, Office of Water
Program Operations.
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REFERENCE DOCUMENTS
Prepared Under the Auspices of:
Municipal Operations Branch
Municipal Permits and Operations Division
Office of Water Program Operations
Environmental Protection Agency
1. "Procedural Manual for Evaluating the Performance of
Wastewater Treatment Plants" *
2. "Federal Guidelines - Design, Operation and Maintenance of
Wastewater Treatment Facilities" *
3. "Considerations for Preparation of Operation and Maintenance
Manuals"
4. "Maintenance Management Systems for Municipal Wastewater
Facilities"
5. "Estimating Laboratory Needs for Municipal Wastewater
Treatment Facilities"
6. "Start-up of Municipal Wastewater Treatment Facilities"
7. "Estimating Staffing for Municipal Wastewater Treatment
Facilities"
8. "Emergency Planning For Municipal Wastewater Treatment
Facilities"
Available from the Operation & Maintenance Program in each
EPA Regional Office. All others may be obtained at cost from
the Superintendent of Documents, U.S. Government Printing
Office, Washington, D. C. 20402
*• us. uffiMNEMrnwnK OFFICE at*- 5*6-317/315
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