xvEPA
United States
Environmental Protection
Agency
Water
Office of Water
Regulations and Standards
Waahington, DC 20460
EPA 440/5-88-045
September 1988
State Water Quality
Standards Summary:
Guam
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DISCLAIMER
*>,. TT c s Pubficat*°n was prepared by Battelle under contract to
SJrJJ;!' EnY.lronm?ntal Protection Agency (Contract 68-03-3534).
Secondary information sources were used to compile data presented
inrf^Ji d°c™ent. Each State was given an opportunity to review
no ™ i comment\°n a draft of this information document In
no event shall either the United States or Battelle have anv
responsibility or liability for any use, misuse, or reliance upSn
the information contained herein, nor does either warrant or
otherwise represent in any way the accuracy, adequacy efficacy
or applicability of the contents hereof. ^^y, et±icacy,
consult the water quality standards of a
Sate Conie°^eJaCt Je9Ulat0ry lan^a*e applicable to tha?
fr-™ +* PŁ \ * ,ate Water <3uality standards may be obtained
eq^valent. * ^ P°llution Contro1 AgeScy or its
Additional information may also be obtained from the:
Standards Branch
Criteria and Standards Division (WH-585)
Office of Water Regulations and Standards
U.S. Environmental Protection Agency
Washington, D.C. " 20460
202-475-7315
This document may be obtained only from the National Technical
Information Service (NTIS) at the following address:
National Technical Information Service
5285 Front Royal Road
Springfield, Virginia 22161
703-487-4650
The NTIS order number is: PB89-141774
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GUAM
Responsible Agency:
Guam Enviromental Protection Agency
P.O. Box 2999
Agana
671-646-8863
State Contacts
Hr. Charles P Chrisostomo
Administrator
6uai Environmental Protection Agency
P.O. Box 2999
96910
Agana
96910
671-646-8863
Standards Available From:
Charles P. Chrisostoio, Administrator
Guai Environmental Protection Agency
P.O. Box 2999
State Contact:
Agana
671-646-8863
Fee:
96910
no
Hailing List: no
State Narrative Language Fors Antidegradation
Haters whose existing quality was better than the established standards as of April 1968, will be maintained
at the same high quality existing at that time.
Waters whose existing quality is less than the established standards for their use due the presence of subst-
ances, conditions, or combinations thereof attributable to domestic, commercial and industrial discharges or
agricultural, construction and other land use practices, shall be improved to comply with the established
standards. However, in such cases where the natural conditions are of lower quality than the criteria
assigned, the natural conditions shall constitute the water quality criteria. Hater quality criteria in
boundary areas shall be established so that the most stringent standard applies. When more than one set of
Hater Quality criteria apply, including overlap of category designation or at a boundary water between two
categories, the more stringent Hater Quality Standards shall apply.
Haters will not be lowered in quality unless and until it has been affirmatively demonstrated to the Adminis-
trator of the Suai Environmental Protection Agency that such a change is justifiable as a result of necessary
social, environmental, or economic development, and that such development will not interfere with or become
injurious to any uses aade of, or potentially possible in, such waters. Any industrial, public or private
project or development will require, as part of the initial project design, provision for the pollutant
reaovai or control technology necessary to protect the designated use of the receiving waters or maintain the
existing high quality of the receiving waters.
The purpose of these Hater Quality Standards is to prevent degradation of water resources resulting from poll-
ution sources. It is not the intent of these standards to restrict activities which may cause pollution but
rather to regulate such activities or practices that may cause a water resource to be degraded.
State Narrative Language For: Toxics
All waters shall be free from substances, conditions or combinations thereof attributable to domestic, commer-
cial and industrial discharges or agricultural, construction and land-use practices or other human activities
that are toxic or harmful to humans, animals, plants or desirable aquatic life.
Effects of toxic or other deleterious substances at levels or combinations sufficient to be toxic or harmful
to huaan, animal, plant or aquatic life or in amounts sufficient to interfere with any beneficial use of the
water, shall be evaluated as a minimum, by use of a 96-hour bioassay as described in the most recent edition
of Standard Methods for the Examination of Hater and Hastewater. Survival of test organisms shall not be less
than that of controls which utilize appropriate water. Failure to determine the presence of toxic substances
by this method shall not preclude determination of excessive levels of toxic substances on the basis of other
criteria or methods.
In order to provide maximum protection for the propagation of fish and wildlife, concentrations of toxic
substances (persistent or non-persistent, cumulative or non-cumulative)j (a) shall not exceed 0.05 of the 96-
hour LC50 at any time or place, nor should the 24-hour average concentration exceed 0.01 of the 96-hour LC50
or, (b) shall not exceed levels calculated by multiplying the appropriate application factor by the 96-hour
LC50 values determined by using the most sensitive species of aquatic organism affected. Whichever value
(a or b) is less shall be the maximum allowable concentration, unless this value exceeds the Haximum
GO-0.
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DISCLAIMER
This publication was prepared by Battelle under contract to
the U.S. Environmental Protection Agency (Contract 68-03-3534).
Secondary information sources were used to compile data presented
in this document. Each State was given an opportunity to review
and provide comments on a draft of this information document. In
no event shall either the United States or Battelle have any
responsibility or liability for any use, misuse, or reliance upon
the information contained herein, nor does either warrant or
otherwise represent in any way the accuracy, adequacy, efficacy
or applicability of the contents hereof.
The reader should consult the water quality standards of a
particular State for exact regulatory language applicable to that
State. Copies of State water quality standards may be obtained
from the State's Water Pollution Control Agency or its
equivalent.
Additional information may also be obtained from the:
Standards Branch
Criteria and Standards Division (WH-585)
Office of Water Regulations and Standards
U.S. Environmental Protection Agency
Washington, D.C. 20460
202-475-7315
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BUAM
Nuterical Litit, then the nuierical Hut shall constitute the laxiiui allowable concentration.
Whenever natural concentrations of any toxic substance or eletent occur and exceed the Huts established in
these standards, this greater.concentration shall constitute the litit, provided that this natural concen-
tration was not directly affected by tan-induced causes.
State Narrative Language For: Free From
All waters shall net generally accepted aesthetic qualifications, shall be capable of supporting desirable
aquatic life, and shall be free fro§ substances, conditions or combinations thereof attributable to doiestic
cowrcial and industrial discharges or agricultural, construction and land-use practices or other huian
activities that:
1. cause visible floating laterials, debris, oils, grease, scut, foai or other floating tatter;
2. produce visible turbidity, settle to fort deposits or otherwise adversely affect desirable aquatic life;
3. produce objectionable color, odor, or taste, directly or by chetical or biological action;
4. are toxic or hartful to hutans, anitals, plants or desirable aquatic life; and
5. induce the growth of undesirable aquatic life.
State Narrative Language For: Mixing Zones
Whenever a Hater Quality Standard is tore restrictive than the corresponding effluent standard then an oppor-
tunity iay be allowed by the Agency for the fixture of an effluent with its receiving water provided that the
zone in which lixing occurs will not adversely affect the designated uses of the receiving waters. If iixing
zones are used, Hater Quality Standards for a receiving water lust be let at every point outside of the bound-
aries of the designated iixing zone. The following criteria apply to all tixing zones:
1. Hhenever fixing zones are allowed, zones of passage, i.e., continuous water routes of the volute, area and
quality necessary to allow passage of free-swiiiing and drifting organists with no significant effects
produced on their populations, shall be provided.
2. Hhere two or tore tixing zones are in close proxitity, they shall be so defined that a continous zone of
passage for aquatic life is available.
3. Biologically itportant areas, including spawning and nursery areas, shall be protected.
4. No criteria shall be set aside in the iixing zone which shall cause conditions in the tixing zone to be
lethal to aquatic life and wildlife which tay enter the zone or injurious to huian health.
5. The area or volute of an individual iixing zone shall be litited to such that will tinitize itpacts.
6. The discharge shall not violate the basic standards applicable to all waters (Sections II A and III E)
nor shall it unreasonably interfere with any actual or probable use of the water within the tixing zone.
7, For those water quality criteria eligible for a tixing zone, alternate litits will be established if the
lifiits in II B are to be revised in the zone of tixing.
GU-2
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GUAM
Classifications:
Category M-l The uses to be protected in this category of waters are conservation of
(Excellent) wilderness areas including protection of natural aquatic life, marine scientifc
research, aesthetic enjoyment and recreation activities which are compatible
Hith the intended use. This category of water shall remain free fro« pollution
attribution to domestic, commercial and industrial discharges, shipping and
intensive boating, mariculturai, construction and other practices which lay
iapair their intended use. Furthermore, there shall be no zones of nixing
within this category of water.
Category W-2
(Good)
Category H-3
(Fair)
Category S-l
(High)
Category S-2
(Hediui)
Category S-3
(LCK)
The uses of these waters are intended to protect the propagation and survival
of a balanced and indigenous population of marine organises particularly
shellfish and coral reefs. Other important and intended uses include
•ariculture activities, aesthetic enjoyment and coipatible recreation inclusive
of whole body contact and related activities.
General use, commercial and industrial uses are intended for this category of
marine water. Specific intended uses include the following: shipping and
navigation, larinas, protection of aquatic life, industrial cooling, water
supply, aesthetic enjoyient and compatible recreation of a limited body contact:
nature.
Surface waters within this zone are used for drinking water resources,
conservation of wilderness areas, and propagation and preservation of aquatic
life and aesthetic enjoyment. It is the objective that these waters shall be
kept free of substances or conditions attributable to domestic, commercial and
industrial discharges, or agricultural, construction or other land-use practices
into S-l waters via discharge or as a result of land uses adjacent to S-l waters
Mixing zones will not be allowed within the boundries of Category S-i.
Surface waters within this zone are used for recreational purposes including
water contact recreation, for use as potable water supply after adequate
treatment is provided, and for propagation and preservation of aquatic wildlife
and aesthetic enjoyment.
Surface waters within this zone are primarily used for commercial, agricultural
and industrial water supply. Aesthetic enjoyment and compatible recreation are
acceptable in this zone, as well as maintenance of aquatic life. Compatible
recreation may include limited body contact activities. All discharges within
this zone which are not required to have construction and or discharge permits
under existing regulations may be required by the Agency to obtain such permits
under these regulations.
GCJ-3
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GUAM
Physical
pH
Upper Value
Lower Value
Secondary Upper Liiit
Dissolved Oxygen
Lower Value
Tesperature Change
Upper Value
Turbidity
Pesticides
Organics
Bacteria
Total Col if on
Upper Value
All
Classes
8.5
6.5
9.0
Narr.
1.0
Category H-l
Category H-2
Category H-3
upper value
Total Dissolved Solids
Upper Value
Nutrients
Nitrate
Upper Value
Phosphate (Qrthophosphate)
Upper Value
Toxic Metals
Iron
Upper Value 0.05 ig/L
Secondary Upper Liiit 3.0 ig/L
Bariui
Upper Value
Boron
Upper Value
Manganese
Upper Value
Narr.
Narr.
0.10 ig/L
0.025 ig/L
0.05 ig/L
5.0 ig/L
0.02 ig/L
Narr.
Narr.
0.20
0.05
0.5
5.0
0.02
•g/L
•g/L
•g/L
•g/L
•g/L
Narr.
Narr.
0.50
0.10
0.5
5.0
0.02
•g/L
•g/L
•g/L
•g/L
•g/L
Narr.
Narr.
Narr.
GU-4
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6UAM
Category S-l
Category S-2
Category S-3
Physical
Turbidity
Upper Value
Chlorides
Upper Value
Sulfates
Upper Value
Total Dissolved Solids
Upper Value
Nutrients
Nitrate
Upper Value
Phosphate (Orthophosphate)
Upper Value
Toxic Metals
Pesticides
Organics
Bacteria
Total Colifori
Upper Value
Narr.
250 ig/L
250 tg/L
500 ig/L
0.20 ig/L
0.05 ig/L
Narr.
250 ig/L
250 tg/L
500 ig/L
0.50 ig/L
0.10 igA
Narr.
250 §g/L
250 ig/L
500 ig/L
(
0.50 ig/L
0.10 ig/L
Narr.
Narr.
Narr.
GU-5
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