Wisconsin Administrative Code › Department of Natural Resources › NR 200-299 - Environmental Protection - Wisconsin Pollutant Discharge Elimination System › Chapter NR 208 - Compliance maintenance › Section NR 208.05 - CMAR point and grading system

Current through June 24, 2024
(1) APPLICABLE
				SECTIONS. The department shall determine which CMAR sections under s.
				NR
				208.04(5) apply to each treatment
				works and shall make the sections available electronically to the treatment
				works owner no later than April 30 of each year.
(2) SECTION SCORES AND GRADES. A point score
				shall be calculated by the department for only the CMAR sections that apply to
				a specific wastewater treatment works. The score and grade for each CMAR
				section shall be based on information and data collected and provided by the
				owner of the treatment works for the prior calendar year. The point score for
				each CMAR section shall be calculated by subtracting any points generated in
				each CMAR section from 100. The point score from each section shall be used to
				determine the applicable grade and response action shown in table 1 for that
				CMAR section.
Table 1
Section Scores, Grades, and Response
				  Ranges
SCORE
GRADE
GRADE POINTS
GRADE MEANING
RESPONSE RANGE
91-100
A
4
Good
Voluntary
81-90
B
3
Satisfactory
Voluntary
71-80
C
2
Marginal
Recommendation
61-70
D
1
Poor
Action
<61
F
0
Fail
Action
(3)
				CMAR SECTIONS AND POINT ASSIGNMENTS. CMAR sections shall be assigned points
				based on treatment works monitoring data and other information from the
				previous calendar year as shown in this subsection. The department may require
				other section specific information that may be included within each CMAR
				section. Supplemental questions and information may not include points and may
				not affect the section's grade.
(a)
Influent flow and loading.
Point assignments for exceedances
				of percentages of maximum month design flow and 5-day biochemical oxygen demand
				(BOD) loadings in the previous calendar year shall be determined as follows:
Monthly Exceedance Criteria
Points Per Monthly Exceedance
Over 90% of maximum month design
								flow1
2
Over maximum month design
								flow1
1
Over 90% of design BOD loading
3
Over design BOD loading
2
1 "Maximum month design flow" means the largest volume of
				  flow anticipated to occur during a continuous 30-day period, expressed as a
				  daily average, for which the treatment works is designed to receive and provide
				  treatment.
(b)
Effluent quality and plant performance (BOD/CBOD).
1. Point assignments for WPDES permit limit
				exceedances and for percentages of effluent 5-day biochemical oxygen demand
				(BOD) or 5-day carbonaceous biochemical oxygen demand (CBOD) limits in the
				previous calendar year shall be as follows:
Monthly Exceedance Criteria (>10mg/l
								BOD/CBOD limits)
Points Per Monthly Exceedance
Over 90% of permit limit
3
Over permit limit
7
Monthly Exceedance Criteria (< or = 10
								mg/l BOD/CBOD limits)
Points Per Monthly Exceedance
Over permit limit
10
2.
				For systems that discharge intermittently to waters of the state, the points
				per monthly exceedance for this CMAR section shall be based upon a
				multiplication factor of 12 months divided by the number of months of
				discharge.
Example: For a wastewater facility discharging only 6 months
				  of the year, the multiplication factor is 12 /6 = 2.0
(c)
Effluent quality and
				plant performance (total suspended solids -TSS).
1. Point assignments for WPDES permit limit
				exceedances and for percentages of effluent TSS limits in the previous calendar
				year shall be as follows:
Monthly Exceedance Criteria (>10mg/l TSS
								limits)
Points Per Monthly Exceedance
Over 90% of permit limit
3
Over permit limit
7
Monthly Exceedance Criteria (< or = 10
								mg/l TSS limits)
Points Per Monthly Exceedance
Over permit limit
10
2.
				For systems that discharge intermittently to waters of the state, the points
				per monthly exceedance for this CMAR section shall be based upon a
				multiplication factor of 12 months divided by the number of months of
				discharge.
Example: For a wastewater facility discharging only 6 months
				  of the year, the multiplication factor is 12 /6 = 2.0
(d)
Effluent quality and
				plant performance (ammonia- NH3).
1.
				Point assignments for exceedances of monthly WPDES permit limits for effluent
				ammonia (NH3) in the previous calendar year shall be as follows:
Monthly Exceedance Criteria
Points Per Monthly Exceedance
Over permit limit
10
2.
				If monthly limits do not apply and the applicable ammonia limits in a permit
				are weekly, then point assignments related to exceedances of weekly WPDES
				permit limits for effluent ammonia (NH3) in the previous calendar year shall be
				as follows:
Weekly Exceedance Criteria
Points Per Weekly Exceedance
Over permit limit
2 1/2
(e)
Effluent quality and plant
				performance (phosphorus -P).
1.
				Point assignments for exceedances of monthly WPDES permit limits for effluent
				total phosphorus (total P) in the previous calendar year shall be as follows:
Monthly Exceedance Criteria
Points Per Monthly Exceedance
Over permit limit
10
2.
				For systems that discharge intermittently to waters of the state, the points
				per monthly exceedance for this CMAR section shall be based upon a
				multiplication factor of 12 months divided by the number of months of
				discharge.
Example: For a wastewater facility discharging only 6 months
				  of the year, the multiplication factor is 12 /6 = 2.0
(f)
Effluent quality and
				plant performance (total nitrogen-total N).
1. Point assignments for exceedances of
				monthly WPDES permit limits for effluent total nitrogen (total N) in the
				previous calendar year shall be as follows:
Monthly Exceedance Criteria
Points Per Monthly Exceedance
Over permit limit
10
2.
				For systems that discharge intermittently to waters of the state, the points
				per monthly exceedance for this CMAR section shall be based upon a
				multiplication factor of 12 months divided by the number of months of
				discharge.
Example: For a wastewater facility discharging only 6 months
				  of the year, the multiplication factor is 12 /6 = 2.0
(g)
Groundwater
				quality.
Point assignments associated with groundwater dischargers
				with groundwater monitoring wells shall be as follows:
Exceedance Criteria
Exceedance Points
Enforcement Standard (ES) or Alternative
								Concentration Limit (ES-ACL) in any downgradient monitoring well of the
								discharge location
20
Enforcement Standard (ES) or Alternative
								Concentration Limit (ES-ACL) at any point of standards application monitoring
								well
10
Note: "Enforcement Standard" or "ES", Alternative
				  concentration limit or "ACL", and "Standards application" has the meaning in
				  ch. NR 140 - Groundwater Quality
(h)
Ponds and lagoon
				leakage.
Point assignments shall be as follows:
Criteria
Points
No influent flow measurements
40
No effluent flow measurements
40
CMAR Estimated or Field Test Calculated Leakage
								Rates
0-1000 gallons/acre/day
0
1001-2000 gallons/acre/day
10
2001-4000 gallons /acre /day
20
4001-7000 gallons/acre/day
30
>7000 gallons/acre /day
40
Note: Pond and lagoon leakage rates may be estimated using
				  total influent and effluent flows or calculated by actual field water balance
				  testing if approved by the department. The change in storage volume (+/-) for
				  fill and draw pond systems, storage lagoons, and other similar type systems may
				  be used in the leakage rate estimation if the method for determining the change
				  in storage volume(s) is approved by the department.
(i)
Biosolids quality and
				management.
Point assignments shall be as follows:
Criteria
Points
Over-application of nitrogen on approved
								sites
30
Lack of 4-year soil tests on active sites
10
Metals exceeded the high quality limits or 80% of
								the limit for molybdenum,
nickel or selenium
10
1-2 times
15
>2 times
Did not cumulatively track metals loading at each
								land application site if high quality limits were exceeded
10
Metals exceeded the ceiling limits
1 time
10
>1 time
15
Land applied biosolids that exceeded the ceiling
								limit
20
Pathogen Control Class B limit
exceeded or did not meet process criteria at time
								of land application
40
Vector Attraction Reduction limit or cri-
teria exceeded at the time of land
								application
40
Biosolids Storage Time
150-179 days
10
120-149 days
20
90-119 days
30
<90 days
40
Note: The definitions of "High quality limit", "Ceiling
				  limit", "Pathogen control limit", and "Vector attraction reduction limit" may
				  be found in ch. NR 204 - Domestic Sewage Sludge Management.
(j)
Staffing and preventative
				maintenance.
Point assignments shall be as follows:
Criteria
Points
Did not have a documented and implemented
								preventative maintenance plan for major equipment items
40
Preventative maintenance plan did not depict
								maintenance frequency and tasks for equipment
10
Preventative maintenance tasks and major equipment
								repairs were not recorded and filed
10
(k)
Operator certification and education.
Point assignments shall
				be as follows:
Criteria
Points
Did not have a designated operator-in-charge of the
								treatment works where required under ch. NR 114
20
The designated operator-in-charge was not certified
								at the appropriate level to operate the treatment works
20
Did not have a contingency plan option(s) for
								having a certified operator operate the treatment works in the event of the
								loss of the designated operator-in-charge.
20
Note: The definition of "Operator-In-Charge" may be found in
				  ch. NR 114 - Certification Requirements For Wastewater Treatment Plant
				  Operators.
(l)
Financial management.
Point assignments shall be as follows:
Criteria
Points
User charges or other revenues were not sufficient
								to cover treatment works' O&M expenses
40
User charge system or other revenue sources was
								last reviewed and/or revised 3 or more years ago
20
Did not have a special account or financial
								resources available for repairing or replacing equipment for the treatment
								works
40
Equipment Replacement Fund was last reviewed and/or
								revised 3 or more years ago (public municipal facilities only)
20
Note: The definitions of "User Charge" and "Replacement" may
				  be found in ch. NR 162 - Clean Water Fund.
(m)
Sewage collection
				systems.
1. Point assignments shall
				be as follows:
Criteria
Points
After the effective date specified in s.
								NR
								210.23(2), did not have a CMOM
								program that meets the requirements of s.
NR
								210.23.
OR
Prior to the effective date specified in s.
								NR
								210.23(2), did not have a documented
								operation and maintenance or CMOM program.
30
2.
				Owners of sewage collection systems shall record and maintain information about
				the operation and maintenance of their sewage collection system, which may
				include the following: cleaning, root removal, flow monitoring, smoke testing,
				sewer line televising, manhole inspections, lift station servicing, manhole
				rehabilitation, mainline rehabilitation, private sewer inspections, private
				sewer infiltration/inflow (I/I) removal, precipitation, sanitary sewer
				overflows, building or basement backups, lift station failures, sewer pipe
				failures, complaints, and any other collection system information deemed
				important by the owner.
Note: Sanitary sewer overflow occurrences and sewage
				  treatment facility overflow occurrences are reported under s.
				  NR
				  210.21(4). Additional reporting
				  requirements under this chapter are required under s.
				  NR 208.06(1)
				  (b). The department may initiate enforcement
				  action under s.
				  283.89, Stats., for
				  any sanitary sewer overflow or sewage treatment facility overflow.
(n)
Grading
				summary.
The department shall provide to the owner a summary of
				section grades, response ranges and resultant grade point average for the
				applicable completed CMAR sections under s.
				NR 208.04(5)
				(a) to (m).
(o)
Resolution or owner
				statement.
The owner shall provide to the department a resolution or
				owner statement of review and response. Public and private treatment works
				owners shall complete and submit the resolution or owner statement with the
				CMAR. No point assignments are associated with this CMAR section.