Adh Compiance Summary Microbial--Disinfection By-Product Rules Part 1

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CCP

Back 1

Composite Correction Program

Front 2

CFE

Back 2

Combine Filter Effluent

Front 3

CPE

Back 3

– Comprehensive Performance Evaluation

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CTA

Back 4

Comprehensive Technical Assistance

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CT

Back 5

Residual Disinfectant Concentration x Disinfectant Contact Time

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D/DBP

Back 6

Disinfectants/Disinfection By-Products

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FBRR

Back 7

Filter Backwash Recycle Rule

Front 8

GAC

Back 8

Granular Activated Carbon

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GWUDI

Back 9

Ground Water Under the Direct Influence of surface water

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HAA5

Back 10

Haloacetic Acids (five

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IESWTR

Back 11

Interim Enhanced Surface Water Treatment Rule

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IFE

Back 12

Individual Filter Effluent

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LT1ESWTR

Back 13

Long Term 1 Enhanced Surface Water Treatment Rule

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LT2ESWTR

Back 14

Long Term 2 Enhanced Surface Water Treatment Rule

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MCL

Back 15

Maximum Contaminant Level

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NTU

Back 16

Nephelometric Turbidity Unit

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SWTR

Back 17

Surface Water Treatment Rule

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TOC

Back 18

Total Organic Carbon

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TTHM

Back 19

Total Trihalomethanes

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Alternate Filtration Technologies"

Back 20

a filtration treatment process that uses technologies other than conventional / direct filtration, slow sand filtration or DE filtration. Alternate filtration technologies may include cartridge / bag filters or membrane filtration processes such as ultra-filtration, nano-filtration, or reverse osmosis.

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Bin Classification"

Back 21

Bin classification" means a category number, ranging from 1 to 4, which specify the required degree of Cryptosporidium treatment.

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Coagulation

Back 22

a process using coagulant chemicals and mixing by which colloidal and suspended materials are destabilized and agglomerated into flocs.

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Conventional filtration treatment"

Back 23

a series of processes including coagulation, flocculation, sedimentation, and filtration resulting in substantial particulate removal.

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Comprehensive Performance Evaluation

-- (CPE)

Back 24

a thorough review and analysis of a treatment plant’s performance-based capabilities and associated administrative, operation and maintenance practices. It is conducted to identify factors that may be adversely impacting a plant’s capability to achieve compliance and emphasizes approaches that can be implemented without significant capital improvements.

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Cryptosporidium

Back 25

is a disease causing protozoan parasite found in humans, other mammals, birds, fish, and reptiles. The oocyst form of the organism is common in the environment and widely found in surface water supplies. Oocyst are highly resistant to standard disinfection practices, therefore physical removal is critical to control Cryptosporidium.

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CT

Back 26

the product of the residual disinfectant concentration (C) in mg/l and the disinfectant contact time (T) in minutes. The residual disinfectant is measured at the effluent from the basin or pipeline; the contact time is the time at which no more than 10% of the water would have exited a basin or pipeline.

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Direct Filtration

Back 27

a series of processes including coagulation and filtration, but excluding sedimentation, resulting in substantial particulate removal.

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Disinfection

Back 28

a process which inactivates pathogenic organisms in water by chemical oxidants or equivalent agents.

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Disinfection Profile

Back 29

a summary of daily Giardia lamblia and virus inactivation through the treatment plant.

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E. coli

Back 30

E. coli (Escherichia coli) is one of several types of bacteria that normally inhabit the intestine of humans and animals.

Front 31

Filter Profile

Back 31

a graphical representation of individual filter performance, based on continuous turbidity measurements or total particle counts versus time for an entire filter run, from start-up to backwash inclusively, that includes an assessment of filter performance while another filter is being backwashed.

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Filter Backwash Water

Back 32

a stream containing particles that are dislodged from filter media when water is forced back through a filter (backwashed) to clean the filter.

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Filtration

Back 33

the process for removing particulate matter from water through the use of porous media including, where appropriate, coagulation, flocculation, and sedimentation. Filtration processes recognized by the SWTR include conventional filtration, direct filtration, diatomaceous earth filtration, and slow sand filtration.

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Giardia lamblia"

Back 34

disease causing microorganism found in the feces of humans and a number of warm blooded animals, both domestic and wild. The cyst form of the organism can survive in the environment for several months. Drinking water supplies receiving sewage discharges and runoff from watersheds containing infected animals is the basis for the Surface Water Treatment Rule.

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Groundwater Under the Direct Influence of Surface Water

GWUDI)

Back 35

any water beneath the surface of the ground with significant occurrence of: insects or other macro organisms, algae, large diameter pathogens such as Giardia lamblia and Cryptosporidium, or the significant and relatively rapid shift in water characteristics such as turbidity, temperature, conductivity, or pH which correlates to climatological or surface water conditions.

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Liquids from Dewatering Processes

Back 36

a stream containing liquids generated from a unit used to concentrate solids for disposa

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Thickener supernatant

Back 37

a stream containing the decant from a sedimentation basin, clarifier or other unit that is used to treat water, solids, or semi-solids from the primary treatment processes.

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Sedimentation

Back 38

a process for removal of solids by gravity or separation before filtration

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Subpart H System

Back 39

a public water system utilizing either a surface water source or a ground water source under the direct influence of surface water.

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Uncovered finished water storage

Back 40

a tank, reservoir, or other facility used to store water that will undergo no further treatment except residual disinfection and is open to the atmosphere. (Note: The phrase "open to the atmosphere" means facilities subject to potential contamination from rainfall, run off, animals, birds, insects or other sources. Covered tanks with properly constructed and maintained hatches, vents, and overflows are not considered "open to the atmosphere".)

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Virus

Back 41

means a virus of fecal origin, which is infectious to humans by waterborne transmission.