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TUESDAY, FEBRUARY 26, 1974
WASHINGTON, D.C. Volume 39 Number 39
PART II
ENVIRONMENTAL PROTECTION AGENCY
ASBESTOS MANUFACTURING POINT
SOURCE CATEGORY
`% . ,/
Effluent Limitations Guidelines
IV \
I xo.30--Pbn--i
000C347
7526 '
,
RULES AND REGULATIONS
Title 40--Protection of the Environment
CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY
SUBCHAPTER N--EFFLUENT GUIDELINES AND STANDARDS
PART 427--ASBESTOS MANUFACTURING POINT SOURCE CATEGORY
On October 30, 1973. notice was pub lished in the Federal Register, (38 FR 22606) that the Environmental Protec tion Agency (EPA or Agency) was pro posing effluent limitations guidelines for existing sources and standards of per formance and pretreatment standards for new sources within the asbestoscement pipe, asbestos-cement sheet, as bestos paper (starch binder), asbestos paper (elastomeric binder), asbestos millboard, asbestos roofing products, and asbestos floor tile subcategories of the asbestos manufacturing category of
point sources. The purpose of this notice is to estab
lish final effluent limitations guidelines for existing sources and standards of performance and pretreatment stand ards for new sources in the asbestos manufacturing category of point sources, by amending 40 CFR Chapter I, Sub chapter N, to add a new Part 427. This final rulemaking is promulgated pur suant to sections 301. 304 (b) and (c), 306 (b) and (c)fl and 307(c) of the Federal Water Pollution Control Act, as amended, (the Act); 33 U.S.C. 1251,1311, 1314 (b )and (c), 1316 (b) and (c), and 1317(c); 86 Stat. 816 et seq.; Pub. L. 92-500. Regulations regarding, cooling water intake structures for all categories of point sources under section 316(b) of the Act will be promulgated in 40 CFR 402.
In addition, the EPA is simultaneously proposing a separate provision which ap pears in the proposed rules section of the Federal Register, stating the appli cation of the limitations and standards set forth below to users of publicly owned treatment works which are subject to pretreatment standards under section 307(b) of the Act. The basis of that pro posed regulation is set forth in the asso ciated notice of proposed rulemaking.
The legal basis, methodology and fac tual conclusions which support promul gation of this regulation were set forth in substantial detail in the notice of public review procedures published August 6, 1973 (38 FR 21202) and in the notice of proposed rulemaking for the asbestoscement pipe, asbestos-cement sheet, as bestos paper (starch binder), asbestos paper (elastomeric binder), asbestos millboard, asbestos roofing products, and asbestos floor tile subcategories. In ad dition, the regulations as proposed were supported by two other documents: (1) the document entitled "Development Document for Proposed Effluent Limita tions Guidelines and New Source Per formance Standards for the Building, Construction and Paper Segment of the Asbestos Manufacturing Point Source
Category" (October 1973). and (2) the
document entitled "Economic Analysis
of Proposed Effluent Guidelines, the As
bestos Products Manufacturing Industry EPA agrees with this comment, how
(September 1973), Both of these docu ever. BOD5 is being dropped as a con
ments were made available to the public trol parameter for the reasons cited in
and circulated to interested persons at the above comment.
approximately the time of publication of (3) One commenter pointed out Am
the notice of proposed rulemaking.
biguous statements in the Development
Interested persons were invited to par Document and the preamble to the pro
ticipate in the rulemaking by submitting posed regulation where the asbestos con
written comments within 30 days from tent of suspended solids was discussed.
the date of publication. Prior public par On the one hand, the documents claim
ticipation in the form of solicited com asbestos may be a large percentage of
ments and responses from the States, the suspended solids, and then state that
Federal agencies, and other interested in general this percentage is small.
parties were described in the preamble It is acknowledged that an erroneous
to the proposed regulation. The EPA has conclusion could have been drawn that
considered carefully all of the comments all subcategories produce suspended
received and a discussion of these com solids in process waste waters with a
ments with the Agency's response there large percentage of asbestos fibers. This
to follows in this document.
conclusion is true in only five of the iden
(a) Sumr/iarv of comments. The fol tified subcategories. In the roofing and
lowing responded to the request for com floor tile subcategories, suspended solids
ments which was made in the preamble contain little, if any. asbestos fibers.
to the proposed regulation: Colorado (4) One comment stated that .ashes-"*
Dept, of Public Health. Michigan Dept, tos-cement pipe plants should have a no
of Natural Resources, Center for Science discharge requirement for 1977, since
in the Public Interest, the Mead Corpora some multi-product plants making as
tion, Armstrong Cork Company, Dept,, bestos-cement pipe already have no dis
of Health. Education and Welfare, Coun charge. Allowing pipe plants to have a
ty Sanitation Districts of Los Angeles discharge will encourage the construc
County, Johns-Msnville Corporation, the tion. of single product, asbestos-cement
Flintkote Company, and the Effluent pipe plants.
Standards and Water Quality Informa EPA has determined that the technol
tion Advisory Committee. ` ogy is not available to allow the setting
Each' of the comments received was of. a no discharge limitation for 1977 or
carefully reviewed and analysed. The for new sources in the asbestos-cement
following is a summary of the significant - pipe subcategory. However, there are
comments and EPA's response to those many Incentives for the construction of
comments.
multiproduct plants. These Incentives in
' (1) A commenter was concerned that clude substantial savings from decreased
the limitations could be Interpreted as water consumption, raw water and waste
gross values without consideration of pol water treatment, land use. and monitor lutants in incoming waters. This com ing requirements. Such built in incen
ment applies in general to BOD5 and tives will not be ignored by industry.
COD limitations for most of the sub (5) Another comment argued that the
categories.
existence of one or two plants in a sub
The limitations on BOD and COD have category with no discharge was sufficient
been reevaluated. The above comment is basis to set a no discharge limitation for
significant in all subcategories with a that subcategory. A specific case men
BOD or COD limitation. In the asbestos- tioned was the asbestos paper (starch
cement pipe and asbestos-cement sheet binder) subcategory.
subcategories, the small quantities of The experience at the one plant which
BOD added by the process do not war is apparently achieving no'discharge has
rant a limitation. In the paper subcate not been sufficiently documented or
gories, BOD is incidently removed by the been continuous forT"substantial pe
best practicable control technology cur riod of time to justify apKftng the tech
rently available (sedimentation). If the nology to all other plgntsj& this subcate-.
suspended solids are controlled to the ex gory by 1977 accordingly. It is the opin
tent required by the limitations, BOD ion of EPA that this technology would
concentrations will also be reduced. not qualify as best practicable control
Therefore, the BOD5 limitation has bear technology currently available as defined eliminated from these subcategories. In by the Act.
the roofing and floor tile subcaterogles, (6) A question was raised during the.
COD must be retained as a significant comment period concerning the applica
control parameter. The raw water enter tion of best available technology eco
ing the processes may contain significant nomically achievable to some of the new
amounts of COD. It is the Intent of the source performance standards. The com
Agency that the limitations in these sub menter claimed that new plants should
categories be considered as net values use best practicable control technology
over water entering the process. This is currently available.
accomplished by the special definition In the case of the asbestos paper, as
for COD in the roofing and floor tile subcategories.
(2) Comments were received objecting to the use of the BOD5 parameter when
bestos-cement sheet, and asbestos roofing subcategories, the technology does exist
for total recycle as proven by a few plants
COD and/or TOC would be t more ac in each subcategory. As mentioned in the
curate measure of the organic matter in previous comment, these few plants were
waste waters from this industry.
not sufficient to set a no discharge using
FEDERAL REGISTER, VOL 39, NO. 39--TUESDAY, FEIIUARY 26, 1974
000C343
V
RULES AND REGULATIONS
7527
best practicable control technology cur*
rently available as defined by the Act A
more stringent limitation for new sources
is deemed feasible since they have addi
tional flexibilities to optimize in-process
controls and cad-of-line pollution con
trol measures.
(7) A question was raised with respect
to the logic for different ratios of daily
to monthly limitations employed In the
various subcategorics. Those numbers were based on the data
available on raw waste loads and treat
ment efficiencies, and the fluctuations
normally experienced in each subcate
gory. The manufacturing of asbestos-
cement products produced greater
fluctuations in raw loads than the other
subcatftgories. The regulations therefore
reflect this finding, the ratio of daily
maximum to monthly average limitations
are higher for the asbestos-cement pipe
and asbestos-cement sheet subcategories
than the other subcategories with allow
able discharges.
(b> Revisions of the proposed reputa
tions prior to promulgation. As a result of
public comments, continuing review and
evaluation of the proposed regulation by
EPA, the following changes have been
made in the regulation.
(1) Sections 427.21, 427.31, 427.41,
427.51, 427.61, and 427.71 entitled "Spe
cialized Definitions" now include refer
ences to general definitions and methods
of analysis in 40 CFR 401 which reduces
the need for some specialized definitions
in this regulation.
(5) Section 304(b) (1) (B) of the Act represent a relatively small percentage
provides for "guidelines" to implement' of the total capital investment in the
the uniform national standards of sec industry.
tion 301(b)(1)(A). Thus Congress rec (e) Solid waste control. Solid waste
ognized that some flexibility was neces control must be considered. The water
sary in order to take into account the borne wastes from the asbestos industry
complexit: of the industrial world with may contain a considerable volume of
respect to the practicability of pollution asbestos particles as a part of the sus
control technology. In. conformity with pended solids pollutant. Best practicable
the Congressional intent and in recogni control technology and best available
tion of the possible failure of these regu control technology as they are known
lations to account for all factors bear today, require disposal of the pollutants
ing on the practicability of control tech control technology as they are known
nology, it was concluded that some pro removed from waste waters in this in
vision was needed to authorize flexibility dustry in the form of solid wastes and
in the strict application of the limita 'liquid concentrates. In some cases these
tions contained in the regulation where are nonhazardous substances requiring
required by special circumstances appli only minimal custodial care. However,
cable to individual dischargers. Accord some constituents may be hazardous and
ingly, a provision allowing flexibility in may require special consideration. In
the application of the limitations, repre order to ensure long term protection of
senting best practicable control tech the environment from these hazardous or
nology currently available has been harmful constituents, special considera
added to each subpart, to account for tion of disposal sites must be made. All,
special circumstances that may not have landfill sites where such hazardous
been adequately accounted for when wastes are disposed should be selected so
these regulations were developed.
as to prevent horizontal and vertical mi
(c) Economic impact. The changes to gration of these contaminants to ground
the regulations mentioned above will not or surface waters. In cases where geo
affect the results of the economic analysis logic conditions may not reasonably en
prepared for the proposed regulation. sure this, adequate precautions (e.g.
(d) Cost-benefit analysis. The detri impervious liners) should be taken to en
mental effects of the constituents' of sure long term protection to the environ
waste waters now discharged by point ment from hazardous materials. Where
sources within the building, construction appropriate the location of solid hazard
and paper segment of the asbestos manu ous materials disposal sites should be
facturing point source category are dis permanently recorded in the appropriate
cussed in Section VI of the report en officeof the legal jursdlction in which the
titled "Development Document for Efflu site is located.
(2) TheBODS limitations in the asbes ent Limitations Guidelines for the (f) Publication of information on
tos-cement pipe, asbestos-cement sheet, Building. Construction and Paper Seg processes, procedures, or operating
asbestos paper (starch binder) and as ment of the Asbestos Manufacturing methods which result in the elimination
bestos paper (elastomeric binder) sub Point Source Category" (February 1974). or reduction of the discharge of pollut
categories have been eliminated. In the It is not feasible to quantify in economic ants. In conformance with the require
asbestos-cement subcategories, the low terms, particularly on a national basis, ments of section 304(c), a manual en
levels of BODS do not warrant a limita the costs resulting from the discharge of titled. "Development Document for Efflu-
tion. The incoming water often con these pollutants to our Nation's water -ent Limitations Guidelines and New
tains equal or greater amounts of BODS ways. Nevertheless, as indicated In Sec Source Performance Standards for the
than the limitations. In-the paper sub tion VL the pollutants discharged have Building, Construction and Paper Seg
categories, the BODS is present as starch substantial and damaging impacts on the ment of the Asbestos Manufacturing
which is removed by settling. The effi quality of water and therefore on its Point Source Category." has been pub
ciency of treatment is more accu capacity to support healthy populations lished and is available for purchase from
rately measured by the suspended solids of wildlife, fish and other aquatic wild the Government Printing Office, Wash
parameter.
life and on its suitability for industrlaL ington, D.C. 20401, for a' nominal fee.
(3) The COD limitations in the roofing recreational and drinking water supply (g) Final rulemaking. In considera
and floor tile subcategories have been uses..
. . tion of the foregoing, *9 CFR Chapter L
retained. However, these limitations can The total cost of Implementing the Subchapter N is hejeby amended by
not be used as gross figures due to the effluent limitations guidelines includes adding a new Paft 42T, Asbestos Manu
presence of relatively high COD values in the direct capital and operating costs of facturing Point Source Category, to read
Incoming waters. The regulations as pro the pollution control technology em as set forth below. This final regulation
mulgated for these subcategories define ployed to achieve compliance and the Is promulgated as set forth below and
COD as the COD added to the process indirect economic and environmental shall be effective April 29. 1974.
wastewaters.
costs Identified in Section VIH end in
(4) The preamble to the proposed reg the supplementary report entitled "Eco
Dated: February 15.1974.
ulations recommended that solid wastes nomic Analysis of Proposed Effluent
JoHwQwamxs,
from all subcategories should be dis Guidelines the Asbestos Products Man
Acting Administrator.
posed of so as to prevent horizontal or ufacturing Industry" (September 1973).
vertical migration of asbestos fibers. As explained above in the comment section, not all subcategories produce a solid
Implementing - the effluent limitations guidelines will substantially reduce the
environmental harm which would other
PART 427--ASBESTOS MANUFACTURING POINT SOURCE CATEGORY
waste with a significant amount of as wise be attributable to the continued dis Subvert A--Asbestos-Cement Pipe Subcatogwy
bestos fibers. Therefore; in the preamble charge of polluted waste waters from 8m.
to the proposed regulation, the discus sion of solid waste control in the "Non water Quality Aspects" section should
not be considered to be applicable to solid waste generated by the waste water treatment processes from the roofingand
existing and newly constructed plants in the asbestos manufacturing industry.
The Agency believes that the benefits of thus reducing the pollutants discharged justify the associated costs which,
42740 Applicability; description of the as bestos-cement pipe subcategory.
42741 Specialized definitions. 427.13 affluent limitations guidelines repre
senting the degree cd effluent re duction attainable by the applies ' tioa of the best practicable con
floortile subcategories.
though substantial In absolute terms.
trol technology currently available.
FEOEEAL UCISTR, VOL 39, NO. 39--TUESDAY, FEllUAtY 36. 1974
OOOC343
7.'28
. RULES AND REGULATIONS
C*c.
,j7.13
,27.14 427.15 *27.16
Effluent limitations guidelines rep resenting the degree of effluent re duction attainable by the applica tion of the best available tech nology economically achievable.
[Reserved | standards of performance. for new
sources. Pretreatment standards for new
sources.
* -.Opart B--Asbestosesment Sheet Subcategory
27.20 Applicability; description of the as bestos-cement sheet subcategory.
See. 427.54 Reserved. 42736 Standards of performance for new
source*. 42736 Pretreatment etandarde for new
source*.
Subpsrt F--Asbsstot Roofing Subcetegoiy
427.60 Applicability; description of the as bestos roofing products sub category.
427.61 Specialized definitions. 427.62 Effluent limitations guidelines rep
resenting the degree of effluent re duction attainable by the applica
limitations should be adjusted for cer tain plants in this industry. An individ ual discharger or other interested per son may submit evidence to the Regional Administrator (or to the State, if the State has the authority to issue NPDES * permits) that factors relating to the equipment or faculties involved, the proc
ess applied, or other such factors related to such discharger are fundamentally different from the factors considered in the establishment of the guidelines. On the basis of such evidence or other avail
427221 Specialized definitions.
tion of the best practicable control able information, the Regional Adminis
427.22 Effluent limitations guidelines repre senting the degree of effluent re duction attainable by the applica tion of the best practicable con trol technology currently available.
427.23 Effluent limitations guidelines rep resenting the degree of effluent re
427.63 427.64
technology currently available. Effluent limitations guidelines rep
resenting the degree of effluent re duction attainable by the applica tion of the- best available tech nology economically achievable. [Reserved]
trator (or the State) will
a written
finding that such factors are or are not
fundamentally different for that facility
compared to those specified in the De
velopment Document. If such funda
mentally different factors are found to
duction sttalnsble by the applica 427.66 Stendarda of performance for new exist, the Regional Administrator or the
. .7.21 427.25 42726
tion of the best avsUsble tech
- nology economically achievable.
[Reserved]
Standards of performance for new
sources*
Pretreatment standards for new
sources.*
. ,*
sources. 427.66 Pretmatmant standards for nsw
sources.-
Subpsrt 8 Asbestes Floor Tile Subcstegory
427.70 Applicability; description of the as bestos floor tile subcategory.
State shall establish for the discharger effluent limitations in the NPDES permit either more or less stringent than the limitations established herein, to the ex tent dictated by such fundamentally dif ferent factors. Such limitations must be.
Subpart C--Asbestos Paper (Smith Binder)
Subcategoiy
.
427JO Applicability: description of the as
bestos paper (starch binder) sub
category. 427.31 Specialized definitions. 427.32 Effluent limitations guidelines rep
resenting the degree of effluent re duction sttalnsble by the applica tion of the best practicable control technology currently available. 427.33 Effluent limitations guidelines repre senting the degree of effluent re duction sttalnsble by the applica tion of the best available tech nology economically achievable.
427.71 Specialized definitions.
.
427.72 427.73
Effluent limitations guidelines rep resenting the degree of effluent re duction attainable by the applica tion of the beat practicable control technology currently available.
Effluent limitations guidelines rep resenting the degree of effluent re duction attainable by the applica tion of the best available tech nology economically achievable.
427.74 [Reserved] 427.75 Standards of perfonoanoa for new
lOUTCNs "
427.76 Pretreatment standards far new
sources. .
-
approved by the Administrator of the
Environmental Protection. Agency. The
Administrator may approve or disap
prove such limitations, specify other"
limitations, or Initiate proceedings to re
vise these regulations.
(b) The foUowing limitations establish
the quantity or quality of pollutants or
pollutant properties, controlled" by this
section, which may be discharged by a
point source subject to the provisions of-
this* subpart after application of the beat
practicable control technology currently
available:
.'
___________ ________ *
427.34 427.35 42736
[Reserved]
.
Standards of performance for new
sources.
*
Pretreatment standards for new
sources.
Subpsrt A--Asbestos-Cement Pip* -
. Subcategoiy
-
427.10 Applicability} description of the asbestos-cement pipe aubemtegory.
Subpart D--Asbestos Paper (Elastomeric Binder) Subcategoiy
427.40 427.41 427.42
Applicability; description of the as bestos paper (elastomeric binder)
subcategory. Specialized definitions. Effluent limitations guidelines rep
The provisions of this aubpart are ap plicable to discharges resulting from the process in. which asbestos. Portland cement, silica and other ingredients are used in the manufacturing of asbestos-
cement pipe.
Effluant chuictiAUa
' '. T88..__________ pH.___________
Effluurt fimltethini AwnstofdtOy
Madams lor valuw fer so any i day eooaaestivadayi sball not OBcaaa--
Metricunite (Rlftkg of prodnet) a57 an -
Within the rang* 4.0 tot.*. English suits Ob/tnn at product)
resenting the degree of effluent re duction attainable by the applies
427.11
Specialized definitions.
TpSHS._. _W__l_tf_il_^__t___ra_ngaAOLtoitt.S
OSS
* tlon of the best practicable control For the purpose of this subpaxt: -
427.43
technology currently available. Effluent limitations guidelines rep
resenting the degree of effluent reduction attainable by the appli cation of the best available tech
(a) Except as provided below, the gen
eral definitions, abbrevations and meth ods of analysis set forth in 40 CFR 401 shall apply to this subpart.
427.13 Effluent.-yiniljglbns guideline*. representing - fne degree of effluent
. reduction attainable by the applica tion of the best available technology
nology economically achievable.
427.44 [Reserved]
427.45 Standards of performance for new
source** *
427.46 . Pretreatment standards for new
sources.
'
Subpsrt E--Asbestos Millboard Subcategoiy
-.27.50 Applicability; description of the as bestos millboard subcategory.
-.27.51 Specialized definitions. '
427.12 * Effluent limitations guidelines representing the degree of effluent reduction attainable by the applica tion of the best practicable control technology currently available. .
(a) In establishing the limitations set forth in this section, EPA took into ac count all information it was able to col lect, develop and solicit with respect to
economically achievable.
The following limitations establish the quantity or quality of pollutants or pollu tants properties which may be dis charged by a point source subject to the provisions of this subpart after applica tion of the best available technology economically achievable: there shall be
'-27.52 Effluent limitations guidelines rep factors (such as age and size of plant, no discharge of process waste water
resenting the .degree of effluent re raw materials, manufacturing processes, pollutants to navigable waters. duction attainable by the applica products produced, treatment technology
,
27.53
tion of the best practicable control technology currently available. Effluent limitations guidelines repre senting the degree of effluent re duction attainable by the applica tion of the best available tech
available, energy requirements and costs) which can affect the industry subcate gorization and effluent levels established. It is, however, possible that lata which would affect these limitations have not
427.14 [Reserved]
427.15 Standards of performance for
- _ new source*. -
.
The .following standards of perform
nology economically achievable. been available and. aa a result, these ance establish the quantity or quality of
FEDERAL REGISTER, VOL 3*, NO. 39--TUKDAY, FHRUARY 26, 1974
0000350
RULES AND REGULATIONS
7529
pollutants or pollutant properties, con lect. develop and solicit with respect to discharge ot process waste water pollut trolled by this section, which may be dis factors (such as age and. size of plant, ants to navigable waters.
charged by a new source subject to the provisions of this subp3rt:
Effluent cliwncUrisUc
Effluent limitation! Areran ot daily
Maximum ror vnluiv for 30 any 1 day contoulive days - shall not tweed--
raw materials, manufacturing processes, products produced, treatment technology
427.24
[Reserved]
available, energy requirements and costs) | 427.25 * Standards of performance for
which can affect the industry subcate
new source!.
gorization and effluent levels established. The following standards of perform
It Is, however, possible that data which ance establish the quantity or quality of
would affect these limitations have not pollutants or pollutant properties which
been available and. as a result, 'these may be discharged by a new source sub-
limitations should be adjusted for certain -ject to the provisions of this subpart:
Metric U!'iis (Vs/lAs ol |.ni<lui;t)
TS3 . ____ .____
O.SV
0.19
pUWiiUn !"c r.U'.gn 6.0 to 9.P.
Eu-lbti italic (Ui,'ion o! prmUicI)
T33 .
... LSI
O..Tj
pn............. I.......... Within the runs': 6." w
plants ha this Industry. An individual dis charger or other interested person may submit evidence to the Regional Admin istrator (or to the Sate, if the State has
the authority to issue NPDES permits) that factors relating to the equipment or facilities involved, the process applied,
there shall be no discharge of process waste waters pollutants to navigable waters.
427.26 Pretreatment standards for new sources.
The pretreatment standards under sec
or other such factors related to such tion 307(c) of the Act for a source within
427.16 Pretreatment slnnciarils for discharger are fundamentally- different the asbestos-cement sheet subcategory,
new sources.
. from the factors considered in the estab which is a user of a publicly owned treat
Tite pretreatment standards under sec
tion 307(c) of the Act for a source within
the asbestos-cement pipe subcategory,
which is a user of a publicly owned treat
ment works (and which would be a new
source subject to section 306 of the Act.
- if it were to discharge pollutants to the
navigable waters), shall be the stand
ard set forth In 40 CFR 128. except that,
for the purpose of this section, 40 CFR
128.133 shall be amended to read as
follows:
In addition to the prohibitions set forth in 40 era 128.131. the pretreatment standard
for incompatible pollutants introduced into a publicly owned treatment works shall be the standard o( performance tor new sources
specified in 40 CFR 427.15: Provided, That,
lishment of the guidelines. On the basis of ment works (and which would be a new
such evidence or other available informa source subject to section 306 of the Act.
tion, the Regional Administrator (or the if It were to discharge pollutants to the
State) will make a written finding that navigable waters). shall be the standard
such factors are or are not fundamen set forth in 40 CFR 128. except that, for
tally different for that facility compared the purpose of this section, 40 CFR
to those specified in the Development 128.133 shall be amended to read as
Document. If such fundamentally differ follows:
.
ent factors are found to exist, the Re In addition to th* prohibition* **t forth in gional Administrator or the State shall 40 CFR 133431, th* pretrtatmtnt standard
establish for the discharger effluent limi for inoompatlbl* pollutants introduced into
tations in the NPDES permit either more a pubUcly owned treatment works shall b*
or less stringent than the limitations th* standard of performance tor new sources
established herein, to the extent dictated by such fundamentally different factors. Such limitations must be approved by.
specified In 40 CFR 42745: Provided, net.
if th* pubUcly owned treatment weeks which receives th* pollutants la committed. In its NPDES permit, to remove a specified percent
the Administrator of the Environmental age 'of any Incompatible poUutant, th* pro*
Protection Agency. The-Administrator treatment standard applicable to users of
it the pubUcly owned treatment works may approve or disapprove such limita such treatment works shall, except in the
' which recalves the pollutants is committed. In Us NPDES permit, to remove a specified percentage of any Incompatible pollutant, the .protreatment standard applicable to users ot such treatment works shall, except In the case of standards providing for no discharge of pollutants, be correspondingly reduced in stringency for'that pollutant.
Subpart B--Asbestos-Cement Sheet Subcategory
427.20 Applicability; dencriplion of
tions, specify other limitations,or initiate proceedings to revise these regulations.
(b) The following limitations establish the quantity or quality of pollutants or pollutant properties, controlled by this section, which may be discharged by a. point source subject to the provisions of
this subpart after application of the best practicable control technology currently available:
earn ot standards providing for no discharge
of poUutanta, be correspondingly reduced In
stringency for that poUutant.
-
Subpart C--Asbestos Paper (Starch . Binder) Subcategory
1427.30 Applicabilityt description of the asbestos paper (starch binder) subcategory.
The provisions of this subpart are ap plicable to discharges resulting from the
the asbestoa-ceuicnt sheet suheato.
gory.
The provisions of tills subpart are ap plicable to discharges resulting from the process in which asbestos, Portland ce
Effluent diaiwttrtti*
Egavnt limiting**
Arons* el dilly Muiasafer rak lor as
inyidsr conacoUrodan
process in which asbestos, starch binders and other ingredients are used in the manufacture of asbestos paper (starch binder).
$ 42731 Specialised detritions.
ment, silica, and other ingredients are used in the manufacturing of asbestoscement sheets. Discharges resulting from manufacture of asbestos-cement sheet laboratory tops are specifically excluded from the provisions of this subpart.
f 427.21 Spraaliml iMinilion,
Uade unit* Ocpkkr ot product)
TS8.................... 1.
&
OB
pH..... .......... .........Within Uwnafit.0 to *A
Xnslkh salt* Otytoaot product)
TPS..................... .......... LJS ~ &4S pU................... Within thinns*&0 to *Ck
For the purpose "ol thillubpart:
'
(a) Except as provided below, the gen
eral definitions, abbreviations and meth
ods of analysis set forth in 40 CFR Part
401 shall apply to this subpart.
8 42732 Effluent limitations guideline* representing the degree of effluent
For the purpose of this subpart: (a) Except as provided below, the gen eral definitions, abbreviations and meth ods of analysis set forth in 46 CFR 401 shall apply to this subpart.
427.22 Effluent limitation* guideline* representing (be degree of clltiiriit reduction attainable by the applies, lion of the Lett jirurticrifib* control
427.23 Effluent limitation* guideline* representing the degree of effluent reduction attainable by the appliealion of the be*t available technology economically achievable.
The following limitations establish the quantity or quality of pollutants or
pollutant properties which may be dis
reduction attainable by the applica tion of the beet practicable control technology currently available.
(a) In establishing the limitations set forth in this section. EPA took into ac count all information It was able to col lect. develop and solicit with respect to factors (such as age and size of plant, raw materials, manufacturing processes,
technology currently available.
charged by a point source subject to the products produced, treatment technology
(a) In establishing the limitations set provisions of this subpart after applica available, energy requirements and costs)
forth in this section. EPA took Into ac tion of the best available technology ec which can affect the Industry subcate
count all information it was able to col- onomically achievable: there shall be no gorization and effluent levels established.
KDMAl IECISTE*. VOL 3*. NO. 39--TUESDAY FCIIUAIY 3, 1974 -
000C351
7530
RULES AND REGULATIONS
It is. however, possible that data which would affect these limitations have not been available and. as a result, those lim itations should be adjusted for certain plants in this industry. An individual discharger or other interested person may submit evidence to the Regional Ad
ministrator (or to the State, if the State has the authority to issue NPDES per mits) that factors relating to the equip ment or facilities involved, the process applied, or other such factors related to such discharger are fundamentally dif ferent from the factors considered in the establishment of the guidelines. On the basis of such evidence or other available information, the Regional Administrator tor the State) will make a written find ing that such factors are or are not fun damentally different for that facility
compared to those specified in the De
pollutants or pollutant properties which may be discharged by a new source sub ject to the provisions of this subpart: there shall be no discharge of process waste water pollutants to navigable -waters. - "
427.36 Prelreatment standards for new sources.'
The pretreatment standards under sec tion 307 (c> of the Act for a source within the asbestos paper, (starch binder) sub category. which is a user of a publicly owned treatment works (and which would be a new source subject to section 306 of the Act, if it were to discharge pollutants to the navigable waters), shall be the standard set forth in 40 CFR Part 128. except that, for the purpose of this section, 40 CFR 128.133 shall be amended to read as follows:
Administrator (or to tbe State, if the State has the authority to issue NPDES permits) that factors relating to the equipment or facilities involved, the' process applied, or other such factors re lated to such diseharger are fundamen tally different from the factors consid ered in the establishment of the guide lines. On the basis of such evidence or other available information, the Regional Administrator (or the State) will mv a written finding that such factors' are or are not fundamentally different for that facility compared to those specified in the Development Document. If such fundamentally different factors are found to exist, the Regional Administra tor or the State shall establish for the
discharger effluent limitations in theNPDES permit either more or less strin gent than tbe limitations established
velopment Document. If such fundamen In addition to tb* prohibitions stt forth herein, to the extent dictated by such
tally different factors are found to exist, in 40 CPH 138431, th* pratnatmant stand
the Regional Administrator or the State ard for lncompatibl* poUutants Introduced
shall establish for the discharger efflu ent limitations in the NPDES permit ei ther more or less stringent than the lim itations established herein, to the extent
into a publicly owetd treatment works ahall
-bt the standard of performance for new sources specified in 40 era 427.35; Provided, That, if the publicly owned treatment works which reetivas th* poUutants la committed.
dictated by such fundamentally different In Its KPOES permit, to restore a specified
factors. Such limitations must be ap percentage of any Incompatible pollutant,
proved by the Administrator of the En the pretreatment standard applicable to
vironmental Protection Agency. Hie Ad users of such treatment works shall, axcept
ministrator may approve or disapprove such limitations, specify other limita tions, or initiate proceedings to revise
in tha case of standards providing for no discharge of poUutants, be correspondingly reduced in stringency for that pollutant.
fundamentally different factors. Such limitations must be approved by tbe Ad
ministrator of the Environmental Protec- . tion Agency. The Administrator may ap prove or disapprove such nmttaM<wi, specify other limitations, or initiate proceedings to revise these regulations.
(b) The following limitations establish ' the quantity or quality off poUutants or poUutant properties, eontxeUed.by this section, which may be discharged by a ' point source subject to the provision* of this subpsrt after application of tha best .
these regulations.
Subpart D--Asbestos Papar (Elastomeric practicable control technology currently
fb) The following limitations estab
Binder) Subcategoiy -
available:
lish the quantity or quality of pollutants ' or pollutant properties, controlled by this section, which may be discharged by a point source subject to the provisions of
427.40 Applicability; description of the asbestos paper (elastomeric
. hinder) subeategory.
'
this subpart after application of the best The provisions of this subpart are ap
ehEirafihctwonisttie
practicable control technology currently plicable to discharges resulting from tha
1 _
Zffloaat Imitation* . Matipmm fcr Avvathnn|** olofdr a10lly
any1 day aehoanlMl ncoott*ivaa*daadn--
available: -
process in which asbestos, elastromeric
binder, and other ingredients are used in
Matriesett* Oks/Uy atprodaot)
Efflnant characteristic
MuUnnm to* Avvaalnosr**olo( dt a*0ily
any 1 day OMueerrtiv* data
' *h*U not *xc**a--
the manufacture of asbestos paper (elas
tomeric binder).
- . ..
427.41 Specialised definition*. '
For the purpose of this subpart: (a) Except- as provided below, the
TBS._________
pH......___ ____
Withinatshs* rt-nc* 40 to 4a4
XnsSah csit* vtoc of product)
TSS__________
pH..... ..................
W!Ufola 10tb*
won
U0.7**
9.1
- Mettic omta (ks/kks at predoet)
TSS --
_ ass
ass
pH-------------- __ Within tha nnc* 40 to *.0 .
general definitions, abbreviations and
methods-of analysis set forth in 40 CFR 427.43 Effluent limitation* guideline*
401 shall apply to this subpart.
. representing itrttfit* of effluent
Ensliih tudt* (lMsn at product) 427.42 Effluent limitation* guidelines
reduction atialnahlefhy the appllea*
TSS..;_______... i.io
aw
__ WithinU>* rant* 40 to 1.0
. representing the degree of effluent - tiou of the bc*tlavabl* technology. reduction attainable by the applica economieaUy achievable. . .
427.33 Effluent limitations guideline*
tion of the best practicable control technology currently available.
The following limitations establish the quantity or quality of pollutants or
- representing the degree of effluent (a) In establishing the limitations set' poUutant properties which may be dis
reduction attainable by the applica tion of the best available technology economically achievable.
forth in this section, EPA took Into ac count all information it was able to col lect, develop and solicit with respect to
charged by a point source subject to the provisions of this subpsrt after applica tion of the best available technology eco
The following limitations establish
the quantity or quality of pollutants or pollutant properties which may be dis charged by point source subject to the
provisions of this subpart alter appli cation of the best available technology economically achievable: there shall be no discharge of process waste water pol
factors (such as age and size of plant, raw materials, manufacturing processes, products produced, treatment technology
available, energy requirements and costs) which can affect the industry subcate
nomically achievable: there shall be no
discharge of process waste water pollut
ants to navigable waters.
''
427.44 [Reserved]
gorization and effluent levels established. 427.45 Standards of performance for
It is, however, possible that data which ' new sources,
.
lutants to navigable waters.
would affect these limitations have not The foUowlng standards of perform
427.34 [Reserved]
`
427.35 Standards of performance for new sources.
The following standards of perform ance establish the quantity, or quality of
been available and, as a result, these limitation* should be adjusted tor cer
tain plant* in this industry. An indi vidual discharger or other interested per son may submit evidence to the Regional
ance establish the quantity or quality of poUutants or pollutant properties, con trolled by this section, which may be dis- charged by a new source subject to the provisions of this subpart:
FEDERAL REGISTER, VOL. 39, NO. 39--TUESDAY, FE1RUA1Y 24, 1974
0 00 C 3 52
RULES AND REGULATIONS
7531
Zftarat UmitcUoos
It is. however, possible that data which within the asbestos millboard subcate would affect these limitations have not gory, which is a user of a publicly owned
Efltuuufc ehanctoriaiio
iitnn of4*117 MaximumJor valtM* for 90
oaf 14*y MOHcntlTt 4*n shall not xe*d--
been available and, as a result, these limitations should be adjusted for cer tain plants in this industry. An individ
treatment works (and which would be a new source subject to section 306 of the Act, If it were to discharge pollutants
ual discharger or other interested person to the navigable waters), shall be the
Metric units (kg/kkgof product)
TSS..................... pit......................
.
0.55 a 55 Within tbftranp c-o ta 9.9
Enslish units (lb/toe o! product)
T$3..................... pH......................
.
W1it.h1i0n tilt range 4.00t.o709.0
may submit evidence to the Regional Ad ministrator (or to the State, if the State has the authority to issue NPDES per mits) that factors relating to the equip ment or facilities involved, the process applied, or other such factors related to such discharger are fundamentally dif ferent from the factors considered in the
standard set forth In 40 CFR 128. except
that, for the purpose of this section. 40
CFR 128.133 shall be amended to read
as follows:
-
In'addition to the prohibitions set forth In 40 CFR 123.131. the pretreatment stand ard for incompatible pollutants Introduced Into a publicly owned treatment works shall
127.46 Pretreatment standards Tor establishment of the guidelines. On the be the standard of performance for new
new sources.
The pretreatment standards under sec tion 3!)7(c> of the Act for a source with in the asbestos paper (elastomeric binder) subcategory, which is a user of a publicly owned treatment works (and which would be a new source subject to section 306 of the Act. if It were to dis charge pollutants to ` the navigable waters), shall be the standard set forth in 40 CFR Part 128. except that, for the purpose of this section, 40 CFR 128.133 shall be amended to read as follows:
la sddltloa to the prohibitions set forth la 40 CFR 138.131. the pretreeOnent stand ard for Incompatible poUutants Introduced into a publicly owned treatment works shall be the standard of performance for now sources specified In 40 CFR 437.4S; Provided,
basis of such evidence or other available information, the Regional Administrator (or the State) will make a written find ing that such factors are or are not fundamentally different for that facility
compared to those specified In the De
velopment Document If such funda mentally different factors are found to exist the Regional Administrator or the State shall establish for the discharger effluent limitations in the NPDES permit
either more or less stringent than the limitations established herein, to the ex tent dictated by such fundamentally dif ferent factors. Such limitations must be approved by the Administrator of the Environmental Protection Agency. The Administrator may approve or disap prove such limitations, specify other
sources specified In 40 CFR 427.55; Provided, That, If the publicly owned treatment works which receives the pollutants Is committed. In Its NPDES permit, to remove a specified percentage of any Incompatible pollutant, the pretreatment standard applicable to users of such treatmsnt works shall, escape in the case of standards providing for no discharge of poUutants, be correspondingly reduced la stringency for that pollutant.
Subpart F---Asbestos Roofing Subcategory
9 427.60 Applicability; description of the asbestos roofing subcategory.
The provisions of this subpart are ap plicable to discharges resulting from, the process In which asbestos paper is satu rated with asphalt or coal tar with the subsequent application of various surface treatments to produce asbestos roofing
That, If the publicly owned treatment works limitations, or initiate proceedings to products.
_ -
which receives the pollutants is committed, in its NPDES permit, to remove a specified
revise these regulations. (b) The following limitations establish'
9 427.61
Specialized definitions.
percentage of any Incompatible pollutant, the pretreatment standard appllcabla to, users of such treatment works shall, except
in the case of standards providing for no discharge of pollutants, be correspondingly
the quantity or quality of pollutant* or pollutant properties which may be dis charged by a point source subject to the provisions of this subpart after applica
reduced In stringency for that pollutant. - tion of the best practicable control tech
For the purpose of this subpart: (a) Except as provided below, the gen eral definitions, abbreviations and meth ods of analysis set forth in 40 CFR Part 401 shall apply to this subpart.
Subpart E--Asbestos Millboard Subcategory
nology currently available: there shall (b) COD shall mean COD added to the
be no discharge of process waste water process waste water.
pollutants to navigable waters.
9 427.62 Effluent limitations guidelines
427.50 Applicability; description of the asbestos millboard subcategory. .
427.S3 Effluent limitation! guidelines representing the degree of effluent
'
representing the degree of effluent reduction attainable by the applica
The provisions of this subpart are ap- '
reduction attainable by the applica
tion of the best practicable control
plicablc to discharges resulting from the
tion of the beat available technology
technology currently available.
process in which asbestos in combina
economically achievable-
(a) In establishing the limitations set
tion with various other materials such as cement, starch, clay, lime, and mineral wool are used in the manufacture of as bestos millboard.
The following limitations establish the quantity or quality of pollutants or pol lutant properties which may be dis charged by a point source subject to the
forth in .this section, EPA took into ac count all Information It was able to col lect. develop and solicit with respect to factors (such as age and size of plant,
427.S1 Specialized definitions.
For the purpose of this subpart:
(a) Except as provided below, the gen
eral definitions, abbreviations andmeth-
ods of analysis set forth in 40 CFR Fart
401 shall apply to this subpart.
.
provisions of this subpart after applica tion of the best available technology eco nomically achievable: there shall be no discharge of process waste water pollut ants to navigable waters.
9 427.54 [Reserved]
raw materials, manBMcturing processes, products produced, treatment technology available, energy requirements and costs). which can affect- tne industry subcate-'
gorizatlon and effluent levels established. It Is, however, possible that data which * would affect these limitations have not
427.52 Effluent limitations guidelines representing the degree of effluent reduction attainable by the applica tion of die best practicable control technology currently available.
(a) In establishing the limitations set forth in this section, EPA took into ac count all information it was able to col lect, develop and solicit with respect to factors (such as age and size of plant, raw materials, manufacturing processes, products produced, treatment technology available, energy requirements and costs)
S 427.55 Standards of performance for new sources.
The following standards of perform
ance establish the quantity or quality of
pollutants or pollutant properties which
may be discharged by a new source sub
ject to the provisions of this subpart:
there shall be no discharge of process
waste water pollutants to navigable
waters.
_
427.56 Pretreatment standards for
new sources.
.
been available and, as a result, these lim itations should be adjusted for certain plants in this' industry. An individual discharger or other interested person may submit evidence to the Regional Ad ministrator (or to the State. If the State has the authority to issue NPDES per mits) that factors relating to the equip ment or facilities involved, the process applied, or other such factors related to such discharger are fundamentally dif ferent from the factors considered in the
establishment of the guidelines. On the
which can affect the Industry subcate The pretreatment standards under basis of such evidence or other available
gorization and effluent levels established. section 307(e) of the Act for a source information, the Regional Administrator
MOSUL IKJISTH, VOL 39, NO. 39--TUISOAY, RttUAtY U, 1974
OOOC353
7532 .
RULES AND REGULATIONS
(or the State) will make a written find new source subject to section 306 of the of such evidence or oilier available in
ing that such factors are or are not run- Act,.If it were to discharge pollutants to formation, 'he Regional Administrator
damentally different for that facility the navigable waters), shall be the stand- (or the State) will make a written find
compared to those specified in the De and set forth In 40 CFR Part 128. except ing that such factors are or are not fun
velopment Document. If such funda that, for the purpose of this section 40 damentally different fer that facility
mentally different factors are found to CFR 128.133 shall be amended to read as compared to those specified in the De
exist, the Regional Administrator or the follows:
velopment Document. If such fundamen
State shall establish for the discharger effluent limitations in the NPDES permit
In addition to the prohibitions set forth In 40 CFR 128.131, the pretreatment standard
tally different factors are found to exist, the Regional Administrator or the State
either more or less stringent than the for Incompatible pollutants Introduced Into shall establish for the discharger effluent
limitations established herein, to the ex a publicly owned treatment works shaU be limitations in the NFDES permit either
tent dictated by such fundamentally dif ferent factors. Such limitations must be approved by the Administrator of the En vironmental Protection Agency. The Ad ministrator may approve or disapprove such limitations, specify other limita
the standard of performance for new sources
specified in 40 CFR 427.65; Provided, That,
If the publicly owned treatment works which receives the pollutants Is committed. In Its NFDES permit, to remove a specified percent age of any Incompatible poUutant, the pre treatment standard applicable to users of
more or less stringent than the limita tions established herein, to the extent dictated by such fundamentally differ ent factors. Such limitations must be ap proved by the' Administrator of the En vironmental Protection Agency. The Ad
tions, or initiate proceedings to revise such treatment works shaU, except In the ministrator may approve or disapprove
these regulations.
case of standards providing for no discharge such limitations, specify other limita
- (b> The following limitations establish the quantity or quality of pollutants or
of poUutants, be correspondingly reduced in stringency for that poUutant.
tions, or initiate proceedings to revise these regulations.
pollutant properties, controlled by this section, which may be discharged by a
Subpart G--Asbestos Floor Til* Subcategory
(b) The following limitations establish the quantity or quality of pollutants or
point source subject to the provisions of this subpart after application of the best practicable control technology currently
427.70 Applicability$ description ' tlte asbestos floor tile eubeategory.
of
pollutant properties, controlled by this section, which may be discharged by a point sourcesubject to the provisions of
available:
.
The provisions of this subpart are ap this subpart after application of the best plicable to discharges resulting from the practicable control technology currently
Effluent UadtiUoos
process, in which asbestos, polyvinyl available: . chloride resin, chemical stabilizers. Ume^
-
Effluent characteristic
Avetis* of daily Maximum for values farSO
any 1 day consecutive days
stone, and other fillers are used .In the manufacture of asbestos floor hie.
ball not txcMd-- 427.71 Specialised definitions. '
Sflara*
Effluent limitations . Averas*ofdaily
Maximum tor value* tor 10 any 1 day ecn*ecutiv*dsy*
Metricunits (krftkf of product)
For the purpose of this subpart:
than not atcMfi--
COD___________ .. TSB____________ ..
a ms .010
aocs .006
(a) Except as provided below, the gen eral definitions, abbreviations and
Mettlewilts Qcf/mpc of product)
PH....................... .. Within th rtnee 6.0 to 9.0.
methods of analysis set forth in 40 CFR COD____________
414 .. aot
En*lish units (lb,ton ot product)
COD___________ .. TSS____________ .. 1>H-.................. ..
a 029
01026 '
.020 .012
Within the mflft 6.0 to 9.0.
401 shall apply to this subpart
-
(b) The abbreviation "mpe" shall mean
1000 pieces of floor tile. '
(c) The term "pieces'* shall mean floor
tile measured in the standard size of
T88TM___________
.06
.04 "
pH--- ------------ ----- WHUa the nitc<.0 to9.fi
English units flWmpe of product)
COD........... .......... T88___
030 .13
an C*
427.63 Effluent limitations guidelines i2"xia"x*4".
pH......................... Within the runje *.t) to fifi
representing the degree of effinent (d) COD shall mean COD added to the
reduction attainable by the applica process waste water.
427.73 Effluent limitations guidelines
tion of the best available technology economically achievable.'
The following limitations establish the quantity or quality of pollutants or
427.72 Effluent limitations guidelines representing the degree of effluent,
redaction attainable by the applica-
lion of the best practicable control
representing the degree of effluent
reduction attainable l*y tlte applies-
tion of the best available technology
economically achievable.
-
pollutant properties which may be
technology currently available.
The following limitations establish the
discharged by a point source subject to the provisions of this subpart after application of the best available tech nology economically achievable: there shall be no discharge of- process waste water pollutants to navigable waters.
427.64 [Reserved].
427.65 Standards of performance for new sources.
The following standards of perform ance establish the quantity or .quality of
(a) In establishing the limitations set
forth in this section, EPA took into ac count all information it was able to col lect, develop and solicit with respect to factors (such as age and size of plant, raw materials, manufacturing processes, products produced, treatment technology available, energy requirements and costs) which can affect the industry subcate gorization and effluent levels established. It Is, however, possible that data which would affect these limitations have not
quantity Or quality of pollutants or pol- ' lutant properties which may be dis
charged by a point source subject to the provisions of this subwwrt after applica
tion of the best. avalloMe technology economically achievableJthere shall be
no discharge of process w%te water pol-' lutants to navigable waters.
427.74 (Reserved]
.
427.75 Standards of performance for
new sources. '
-
pollutants or pollutant properties which been available and, as a result, these limi The following standards of perform-,
may be discharged by a new source sub tations should be adjusted for certain ance establish the quantity or quality of
ject to the provisions of this subpart: plants In this industry. An individual pollutants or pollutant properties which
there shall be no discharge of process discharger or other interested person may may be' discharged by a new source sub
waste water pollutants to navigable submit evidence to the Regional Admin ject to the provisions of this subpart:
waters. .
427.66 Prclrealraent standards for new sources.
The pretreatment standards under section 307(c) of the Act for a source within the asbestos millboard subcate gory, which is a user of a publicly owned treatment works (and which would be a
istrator (or to the State, if the State has the authority to issue NPDES permits) that factors relating to the equipment or facilities involved, the process applied, or
other such factors related to such dis
charger are fundamentally different
from the factors considered in the estab
lishment of the guidelines. On the basis
there shall bo no discharge of process waste water pollutants to navigable
waters.
427.76 Prelrcalmcut standards for
new sources.
. '.
The pretreatment standards under section 307(c) of the Act tor a source within the asbestos floor tile subcategory.
FE0ERAI REGISTER, VOL 39, NO. 39--TUESDAY, FEIRUARY 26, 1974
OOOC354
RULES AND REGULATIONS
which Is * user of ft publicly owned treat
ment works (and which would be % new
source subject to section 306 of the Act,
if It were to discharge pollutants to the
navigable water*), shall be the standard
set forth in 40 CFR Part 128, except tl.at,
for the purpose of this section, 40 CFR
128.133- shall be amended to read as fol
lows:
,
In addition to the prohibitions set forth in 40 era 13S.131, th pietrestment stand ard for incompatible pollutants introduced
Into s pubUely owned treatment works shall be the standard at performance for new eouroes specified in 40 CFR 427.75: Provided. That, if the publicly owned treatment works which receives the pollutants Is committed, in Its NPDES permit, to remora a specified percentage of any incompatible pollutant, the pretreatment standard applicable to users of such treatment works ahaU, except in the case of standards,providing for no dis charge of poUutanta, be correspondingly re duced In stringency for that pollutant.
[FR DoC.74--1383 Filed 3-35-74:8:46 ami
7533
i
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r
t
No. 39--Pt. n-
ffoiiAL tcounat, vol s, no.
Tuesday, feuuaxy m. 1*74
\
OOOC355