Water Use
Supporting Guidance (WAT-SG-12)
General Binding Rules for Surface Water
Drainage Systems
Version: v4.1
Released: Mar 2016
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Update Summary
Version
Description
v1.0
First (draft) issue for Water Use reference using approved content from the
following documents:
SG_12_PS_GBR _Guidance
v2.0
Final version based on WAT-SG-12 (v3)HT.doc
v3.0
New base template applied, links to docs revised for Nov 08 SEPA website,
v4.0
Various updates for CAR 2011
v4.1
Section 4 para 3, text added to clarify field drain rules. Doc links updated
Notes:
References: Linked references to other documents have been disabled in this web version of the
document. See the References section for details of all referenced documents.
Printing the Document: This document is uncontrolled if printed and is only intended to be viewed
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Always refer to the online document for accurate and up-to-date information.
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Table of Contents
1. Key Points ........................................................................................................... 4
1.1
Terminology .............................................................................................. 4
2. Introduction.......................................................................................................... 5
3. Overview of Activities 10 and 11 ......................................................................... 6
3.1
Activity 10.................................................................................................. 6
3.2
Activity 11.................................................................................................. 6
4. Activity 10 ............................................................................................................ 7
4.1
Rules for Activity 10 .................................................................................. 8
5. Activity 11 .......................................................................................................... 15
5.1
Rules for Activity 11 ................................................................................ 15
References ............................................................................................................ 18
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1. Key Points
This document provides supporting guidance on General Binding Rules
(GBRs) for discharges into and from surface water drainage systems. It
provides:
 Background and context to the GBRs under Activities 10 and 11
 Explanation and interpretation of these GBRs
 Guidance on complying with the GBRs
1.1 Terminology
Term
Definition
CAR
The Water Environment (Controlled Activities)(Scotland) Regulations
COPA
The Control of Pollution Act 1974 (as amended)
GBR
General Binding Rule
Oil
Any kind of oil and includes fuel oil, waste oil and hydraulic oil
Sewage
Same meaning as in section 59 of the Sewerage (Scotland) Act 1968
(as amended)
Surface water
drainage system
A system, such as a SUD system, that is used to collect and drain
surface water run-off from one or more premises and transport it to,
and discharge it into, the water environment, and may include, among
other things, any surface water sewers and associated inlets, outfalls,
gullies, manholes, oil interceptors, silt traps, and attenuation,
settlement and treatment facilities;
Trade effluent
Same meaning as in section 59 of the Sewerage (Scotland) Act 1968
Note on terminology
Although SEPA staff are familiar with the use of the term “surface
water” in this context (i.e. as defined under the Sewerage (Scotland)
Act 1968), and the term is used in CAR Schedule 3 as part of the
definition of “surface water drainage system”, it has a very different
meaning under the Water Framework Directive and section 3(3) of the
Water Environment and Water Services (Scotland) Act 2003:
“Surface water” means inland water (other than
groundwater), transitional water and coastal water.
For that reason, this document refers to “run-off water” rather than
“surface water”.
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2. Introduction
On 1 April 2006, The Water Environment (Controlled Activities)(Scotland)
Regulations 2005 (CAR2005) replaced COPA for control of point source
discharges. On 31 March 2011, CAR 2011 replaced CAR 2005. The
regulations provide a risk-based means of regulating discharges of run-off
water, which are controlled either by General Binding Rules (GBRs) or
Licences.
Licences for discharges of run-off water will only be issued in a minority of
cases and most discharges will be controlled via GBRs. Refer to WAT-RM08: Regulation of Sustainable Urban Drainage Systems (SUDS) for further
details.
The purpose of this document is to provide background and context to the
relevant GBRs, give explanation and interpretation of the rules, and provide
guidance on complying with the rules.
General Binding Rules provide a means of “hands off” regulation for SEPA.
GBRs are statutory (Schedule 3 of CAR) and it is an offence under
Regulation 44(1)(b) of CAR to fail to comply with or contravene a GBR.
However, GBRs differ from licences in that a person can carry out the
described activity without application to SEPA. A controlled activity specified
in Schedule 3 of CAR is automatically authorised providing it is carried out in
accordance with the general binding rules specified for that activity
(Regulation 6).
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3. Overview of Activities 10 and 11
The General Binding Rules for discharges of run-off water are contained in
Schedule 3 of the regulations, under Activities 10 and 11.
 Activity 10:
Applies to the discharge of run-off water from a surface water drainage
system to the water environment from buildings, roads, yards or any other
built developments, or construction sites for such developments and; if
desired, the construction and maintenance of any water outfall in or near to
inland surface water which forms, or will form, part of that system.
 Activity 11:
Applies to a discharge into a surface water drainage system.
3.1 Activity 10
The main objectives of the rules under Activity 10 are as follows:
 To require a minimum standard of quality for the run-off water discharge
such that it does not result in pollution
 To require the provision of Sustainable Urban Drainage Systems (SUDS)
or, for the construction phase only, equivalent systems
 To prohibit specific areas at high risk of contamination from draining to the
surface water drainage system
 To specify maintenance requirements and preventative measures for the
surface water drainage system
 To prohibit pollution during the construction or maintenance of an outfall
3.2 Activity 11
The main objectives of the rules under Activity 11 are as follows:
 To prohibit pollutants from being disposed of into the surface water
drainage system
 To specify preventative measures for the surface water drainage system
 To prohibit sewage or trade effluent being discharged to the surface water
drainage system.
 To minimise runoff into the surface water drainage system from exposed
areas of soil on construction sites.
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4. Activity 10
Activity 10: “Discharge of water run-off from a surface water
drainage system to the water environment from buildings, roads,
yards or any other built developments, or construction sites for
such developments, and, if desired, the construction and
maintenance of any water outfall in or near to inland surface water
which forms, or will form, part of that system.”
This activity covers any discharge of run-off water, both new and existing,
with or without SUDS treatment, from the built environment to the water
environment and includes temporary discharges from construction sites.
Discharge to the water environment includes indirect discharges to
groundwater such as soakaways and infiltration systems.
The activity also includes the construction and maintenance of any outfall
associated with a surface water drainage system.
Activity 10 does not apply to field drains or run-off from fields, since this is not
drainage arising from the built environment, or to any overland run-off from
the built environment which is not collected by a surface water drainage
system. It does, however, apply to field drains carrying water from
construction sites or otherwise forming part of the conveyance of water from
the built environment.
Construction Sites
The description of Activity 10 includes all drained run-off water from
construction sites, including water pumped from construction site
excavations. This water requires to comply with the terms of the GBR.
Therefore construction site run-off water discharging via a surface water
drainage system (as defined in CAR Schedule 3 – see Terminology) is
automatically under statutory control without the requirement for a licence.
Currently Activity 10 cannot be used to control diffuse pollution caused by
overland (sheet flow) run-off from construction sites unless the runoff is
discharged via a surface water drainage system.
It should be noted that even where the final run-off water discharge from a
completed development site is to be licensed, Activity 10 is applicable during
the construction phase.
Farms
The description of Activity 10 also provides controls for potentially polluting
run-off water from farm premises, excluding specifically contaminated
drainage regulated through The Control of Pollution (Silage, Slurry and
Agricultural Fuel Oil) (Scotland) Regulations 2003. Field drainage however
does not fall within the scope of Activity 10. Note also that there is a specific
GBR Activity (21) which applies to water run-off discharged via a surface
water drainage system as a result of rural land activities. For further
information see Agricultural Regulation on SEPA website.
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Supporting Guidance (WAT-SG-12)
Enforcement
Enforcement of the rules under Activity 10 would be against the party or
person(s) making the discharge to the water environment whether from a
public or private drainage system.
4.1 Rules for Activity 10
4.1.1 Rule 10(a)
“all reasonable steps must be taken to ensure that the discharge
does not result in pollution of the water environment”
This is a general condition for protection of the water environment and
requires that all reasonable steps are taken to avoid pollution. Pollution is
explicitly defined in The Water Environment and Water Services (Scotland)
Act 2003 (Part 1, Chapter 3, Section 20(6)) as follows:
“pollution”, in relation to the water environment, means the direct or indirect
introduction, as a result of human activity, of substances or heat into the
water environment, or any part of it, which may give rise to any harm; and
“harm” means:
(a) harm to the health of human beings or other living organisms,
(b) harm to the quality of the water environment, including –
(i) harm to the quality of the water environment taken as a
whole,
(ii) Other impairment of, or interference with, the quality of
aquatic ecosystems or terrestrial ecosystems directly depending
on aquatic ecosystems
(c )Offence to the senses of human beings,
(d )Damage to property, or
(e) impairment of, or interference with, amenities or other
legitimate uses of the water environment.
It should be noted that the requirement that ‘the discharge must not result in
pollution of the water environment’ applies to all discharges covered by
Activity 10, new and existing, regardless of whether a SUD system is present
or not. This is also the case for Rules 10 (b), (c), (f) and (g).
4.1.2 Rule 10(b)
”the discharge must not contain any trade effluent or sewage, and
must not result in visible discolouration, iridescence, foaming or
growth of sewage fungus in the water environment”
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Activity 10
This rule is included so that it specifies a minimum standard of compliance
for all run-off water outfalls in order to prevent pollution. It is also suitable as
a rule where compliance can be readily assessed by visual inspection in the
event of an environmental incident or public notification (complaint).
For example, the commercial washing of vehicles is often wrongly carried out
in the vicinity of surface water drains. The rules under Activity 10 (in addition
to Activity 11) would limit such activities since the presence of trade effluent
in the discharge is specifically prohibited.
4.1.3 Rule 10(c)
”the discharge must not result in the destabilisation of the banks or
bed of the receiving surface water;”
The purpose of this rule is primarily to prevent scouring in the receiving
waters or bank erosion due to a badly designed surface water drainage
system, including any associated SUD system.
For design guidance to ensure compliance with this rule, reference should be
made to the SUDS Manual (CIRIA C753) and also WAT-SG-28: Good
Practice Guide - Intakes & Outfalls.
4.1.4 Rule 10(d)
“the discharge must not contain any water run-off from any built
developments, the construction of which is completed after 1st
April 2007, or from construction sites operated after 1st April 2007,
unless:
(i) during construction those developments are drained by a
SUD system or equivalent systems equipped to avoid pollution
of the water environment;
(ii) following construction those developments are drained by a
SUD system equipped to avoid pollution of the water
environment;
(iii) the run-off is from a development that is a single dwelling
and its curtilage; or
(iv) the discharge is to coastal water;”
Rule 10(d) requires that all run-off water (including roof water) from built
developments completed after 1st April 2007 (except for scenarios (iii) and
(iv) above) be ‘drained by a SUD system equipped to avoid pollution of the
water environment’.
Run-off during the construction of those developments must be ‘drained by
a SUD system or equivalent systems equipped to avoid pollution of the water
environment’.
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Supporting Guidance (WAT-SG-12)
It is important to note the wording ‘equipped to avoid pollution’ in Rule 10 (d)
as it applies to both ‘SUD system’ and, for construction sites only, ‘equivalent’
systems. Therefore the installation of inadequate SUDS or equivalent
systems will not satisfy this rule on the grounds that they will not be equipped
to avoid pollution.
Rule 10(d) automatically requires that all SUDS or equivalent systems meet
the need to protect the water environment, irrespective of whether SEPA has
been consulted on the design prior to construction. This is significant
because sometimes SUDS are designed purely for flow control without
adequate regard to water quality.
Rule 10(d) is notable in that SUDS are a statutory requirement for built
developments as is the treatment (via SUDS or equivalent systems) of run-off
water from construction sites drained via a surface water drainage system
(see Construction Sites).
It should be noted that the requirement to provide SUDS includes runoff from
re-development sites as well as ‘green-field’ sites i.e. it applies to any ‘new
build’.
Under the GBR, roof water also requires SUDS treatment. However, SEPA
recognises that there are situations where discharges of certain run-off water
pose a very low risk of pollution or impact on receiving water flow e.g. roof
water discharging to transitional waters (estuaries) or other waters with very
high dilution. In such cases, minimal SUDS measures as appropriate to the
situation will be acceptable. e.g. any ‘source control’ measures, short length
of filter trench, partial soakaway etc.
The degree of SUDS treatment should always be appropriate to the risk of
pollution from a particular development, taking into account the nature of the
receiving environment. This is explained in further detail in WAT-RM-08:
Regulation of Sustainable Urban Drainage Systems (SUDS).
10(d) (i and ii) Sustainable Urban Drainage Systems (SUDS)
The main reference information for the selection and design of appropriate
SUDS are:
 CIRIA website
 Sewers for Scotland
 SUDS Manualhttp://www.ciria.org/acatalog/C697.html
 Water Assessment and Drainage Assessment Guide
 WAT-RM-08: Regulation of Sustainable Urban Drainage Systems
(SUDS)
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Activity 10
Meaning of ‘Equivalent Systems’
Rule 10(d)(i) permits ‘equivalent systems’ to SUDS to be used during the
construction phase of a development.
The following section provides guidance on the interpretation of ‘equivalent
systems’ equipped to avoid pollution of the water environment”
It is recognised that treatment of run-off water may not always be carried out
solely through use of ‘traditional’ SUDS. For example, vortex settlement
chambers and oil interceptors may be appropriate as part of the overall
SUDS management train to protect a SUDS pond from excess silt or oil
contamination and proprietary underground storage cells/tanks may be
suitable for attenuation of run-off water. However, such devices used in
isolation would not constitute SUDS.
There may be cases however where, as a temporary solution, the use for
example of vortex settlement chambers may be justified on a minor scale
such as on small construction sites where traditional settlement ponds may
not be practical.
The important test is that a particular system is demonstrated to be ‘equipped
to avoid pollution of the water environment’. Therefore in the majority of
cases, SEPA’s water quality requirements for run-off water discharges would
not be achievable in the long term, without the use of SUDS.
Whilst ‘equivalent systems’ may be satisfactory as a short term solution, e.g.
for immediate pollution control of construction site run-off (Rule 10(d)(i) ),
these do not meet the longer term treatment, attenuation and amenity
objectives of SUDS. Hence ‘equivalent systems’ are not permissible for
treatment of runoff water from completed developments (Rule 10(d)(ii).
10(d) (iii) Single Dwellings:
Single dwellings do not require SUDS, though this would still be encouraged
where possible (e.g. by use of soakaways or porous pipes/rumbling drains).
Rule (d) (iii) is therefore effectively an exemption from requiring SUDS for
single dwellings.
10(d) (iv) Coastal Waters:
SUDS are generally not considered compulsory for discharges to coastal
waters. However, this would still be encouraged as good practice where
possible. Rule (d) (iv) is therefore effectively an exemption from requiring
SUDS for coastal discharges. Even where SUDS are not used, other
treatment such as oil interceptors may still be required depending on local
circumstances.
However, there are exceptional circumstances where SEPA may identify
through a risk assessment that SUDS are necessary to protect a coastal
water (e.g. where there is a risk of affecting compliance of a designated
bathing or shellfish water, discharge of dangerous/priority substances).
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Supporting Guidance (WAT-SG-12)
In such circumstances, SEPA may escalate control of that activity from a
GBR to a licence. Refer to WAT-RM-08: Regulation of Sustainable Urban
Drainage Systems (SUDS) for further details. It should be noted that where
the GBR provides an exemption from requiring SUDS, the other rules
continue to apply. Therefore in these cases, there is still an overriding
requirement that the discharge does not result in pollution of the water
environment and therefore pollution control measures may be required (e.g.
to prevent discharges of contaminants such as oil / metals). There are no
exemptions from this rule.
4.1.5 Rule 10(e)
“the discharge must not contain any water run-off from:
(i) fuel delivery areas and areas where vehicles, plant and
equipment are refuelled
(ii) vehicle loading or unloading bays where potentially polluting
matter is handled
(iii) oil and chemical storage, handling and delivery areas
constructed after 1st April 2007”
On many development sites, there are certain ‘high risk’ areas of activity
(detailed in (i) – (iii) above) where it would not be appropriate to drain the runoff water to surface water sewer. This is due to the risk of spillage and the
polluting nature of the substances involved. This rule effectively precludes
such areas constructed after 1st April 2007 from being authorised under the
GBR, should they be connected to the surface water drainage system.
Previously, this advice was contained within SEPA’s Pollution Prevention
Guidance (PPG) and is now a statutory requirement under the GBR.
Although commercial washing of vehicles is not specifically excluded, this is
trade effluent and is therefore not allowed by virtue of rule 10(b).
Scottish Water’s preferred method of drainage is for separate systems and it
does not normally accept run-off water to the foul or existing combined
sewer. In exceptional circumstances where such connections are being
considered, Scottish Water should be consulted to establish the acceptability
of the proposal and to determine their specific drainage requirements.
If Scottish Water does not allow connection to the foul sewer, it may be
possible to contain such drainage and tanker it away for treatment or
authorised disposal. Use of canopies, or undertaking these activities indoors,
will eliminate or significantly reduce the amount of run-off water draining from
such areas.
If none of these options is feasible, and discharge to the water environment is
the only possibility, then this activity will require to be licensed as it is not
authorised under the GBR. The licence will then specify the controls,
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Activity 10
including levels and type of SUDS treatment, and any additional treatment
such as oil interceptors, required to protect the receiving waters.
4.1.6 Rules 10(f) and (g)
(f) “all facilities with which the surface water drainage system is
equipped to avoid pollution, including oil interceptors, silt traps and
SUD system attenuation, settlement and treatment facilities, must
be maintained in a good state of repair; and
(g) all reasonable steps must be taken to ensure that any matter
liable to block, obstruct, or otherwise impair the ability of the
surface water drainage system to avoid pollution of the water
environment is prevented from entering the drainage system.”
Where surface water drainage systems are equipped with treatment facilities
(SUDS or otherwise), regular maintenance is required to maintain the
standard of the discharge and prevent pollution. This should include regular
inspections to check for blockages in inlet and outlet pipes etc and to ensure
any treatment system, where present, is functioning as designed.
For example, if a heap of soil was being stored on top of a porous car park
surface, rule 10(g) may be breached because the SUDS treatment may
become impaired from the premature blockage of the voids in the car park’s
underlying construction.
Rule 10(g) requires the party making the discharge to the environment, to
take the reasonable measures specified in the paragraph.
Note that Rule 10(g) differs from 11(b) below in that Activity 11 applies to
discharges into a surface water drainage system in contrast to Activity 10
which relates to the discharge from such a system to the water environment.
Good maintenance is essential to the effectiveness of a SUDS treatment
train approach. Guidance on maintenance is contained in:
 Operation and maintenance of sustainable drainage systems (and
associated costs)

PPG 3: Use and design of oil separators in surface water drainage
systems
 SUDS Manual
4.1.7 Rule 10(h)
“the construction or maintenance of the outfall must not result in
pollution of the water environment”
Activity 10 not only applies to the discharge of runoff water from a surface
water drainage system but also to the construction or maintenance of any
outfall associated with the drainage system. Such engineering work in the
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Supporting Guidance (WAT-SG-12)
vicinity of the water environment has the potential to cause pollution if
appropriate preventative measures are not undertaken. Thus to cause
pollution under such circumstances and thereby breach Rule 10(h) would be
an offence under CAR.
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5. Activity 11
Activity 11: ‘’Discharge into a surface water drainage system’’
Activity 11 is distinct from Activity 10 in that it contains specified rules for
discharges into, as opposed to from, a surface water drainage system. Thus
the disposal of pollutants or wrong connections to the surface water drainage
system will be an offence, regardless of whether pollution of the water
environment has occurred. This will enable proactive enforcement action to
be taken before a problem manifests itself in the water environment. Note
that Activity 11 applies to all surface water drainage systems, new and
existing.
The provisions of Activity 11 are essential for achieving the amenity
objectives of SUDS in addition to the effectiveness of the measures for
controlling pollution.
In the event of a pollution incident or threat of an incident due to illegal
discharges to the public drainage system, the primary onus will be on
Scottish Water to take action, as appropriate, under the relevant legislation.
However SEPA, as the enforcing authority for the GBRs, will also provide
assistance in cases where there is a clear breach of the rules under Activity
11.
Where the run-off water discharge from a site may be licensed (e.g. from an
Industrial Estate), the rules under Activity 11 will still apply to control
discharges into a surface water drainage system on that site as this is a
separate and distinct activity under CAR.
5.1 Rules for Activity 11
5.1.1 Rule 11(a)
“oil, paint, paint thinners, pesticides, detergents, disinfectants or
other pollutants must not be disposed of into a surface water
drainage system or onto any surface that drains into a surface
water drainage system;”
This rule is specifically intended to control the commonest types of pollutants
illegally disposed of into surface water drains. However, the list is not
exhaustive and includes any potential pollutant. This rule is intended to
prohibit both the direct tipping of pollutants straight into a gully or indirect
disposal onto surfaces which may subsequently wash into surface water
drains. The commercial washing of vehicles or wheelie bins would be
obvious examples.
The rule is not intended to be used to control domestic car or wheelie bin
washing activities etc unless these involve the wilful and persistent disposal
of detergents and/or other pollutants to surface water drains. In the majority
of cases, issuing good pollution prevention advice will normally suffice.
Please refer to SEPA Policy 5: Policy Statement on Enforcement before
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Supporting Guidance (WAT-SG-12)
considering the most appropriate course of action for the particular
circumstance.
5.1.2 Rule 11(b)
“any matter liable to block, obstruct, or otherwise impair the ability
of the surface water drainage system to avoid pollution of the
water environment must not be disposed of into a surface water
drainage system or onto a surface that drains into a surface water
drainage system“
The wording of this rule is very similar to rule 10(g). However, 11(b) differs in
that it applies to persons who may affect the surface water drainage system
through their actions (e.g. disposal of matter by occupiers of an industrial
estate) as opposed to the party making the run-off water discharge to the
environment (i.e. Scottish Water or private discharger).
5.1.3 Rule 11(c)
“sewage or trade effluent must not be discharged into any surface
water drainage system”.
Illegal connections and discharges of sewage or effluent from trade premises
(such as from the commercial washing of vehicles and vehicle wash bays)
into surface water drainage systems are a common problem. The effect of
this rule is that such activities would be an offence and will allow action to be
taken as soon as a problem becomes apparent e.g. evidence of sewage or
excessive foaming in a SUDS pond or swale.
It should be noted that capital investment may be required to address
historical cross-connections and if this is the case, relevant schemes should
be agreed with Scottish Water through the normal Quality and Standards
(Q&S) process.
However, developers and builders should ensure that when a new site is
built, all surface water sewers are checked for any wrong connections which
if found, should be rectified.
5.1.4 Rule 11(d)
“on construction sites any area of exposed soil from which water
drains into a surface water drainage system, and the period of
time during which such water drains, must be the minimum
reasonably necessary to facilitate the construction works being
undertaken at that site ”.
Pollution from construction sites commonly occurs due to large areas of
stripped soil being exposed to rainfall over a protracted period. This can
result in runoff which contains high levels of suspended solids.
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Activity 11
Good construction site practice involves minimising the extent of such
exposed areas and the duration that these areas are exposed. Rule 11(d)
requires the operator of a construction site to limit exposed areas of soil to
what would be considered as the ‘minimum reasonably necessary’ to enable
the construction works to be carried out.
Rule 11 (d) applies to any areas of exposed soil which drain into a surface
water drainage system. The rule cannot be used to control diffuse pollution
caused by overland (sheet flow) run-off from construction sites unless this
runoff is discharged via a surface water drainage system.
Further guidance on good practice for construction sites is available as
follows:
 Control of water pollution from construction sites - guide to good
practicehttp://www.ciria.org/
 PPG 5: Works and maintenance in or near water
 PPG 6: Working at construction and demolition sites
 WAT-SG-31: Special Requirements for Civil Engineering Contracts for the
Prevention of Pollution
 WAT-SG-32: Guidance on Special Requirements for Civil Engineering
Contracts
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References
NOTE: Linked references to other documents have been disabled in this web version of the
document See the Water >Guidance pages of the SEPA website for Guidance and other
documentation (http://www.sepa.org.uk/regulations/water/engineering/engineering-guidance/).
All references to external documents are listed on this page along with an indicative URL to help
locate the document. The full path is not provided as SEPA can not guarantee its future location.
Key References
 WAT-RM-08: Regulation of Sustainable Urban Drainage Systems
(SUDS)
 WAT-SG-28: Good Practice Guide - Intakes & Outfalls
 WAT-SG-31: Special Requirements for Civil Engineering Contracts for
the Prevention of Pollution
 WAT-SG-32: Guidance on Special Requirements for Civil Engineering
Contracts
Other References
 Agricultural Regulation (www.sepa.org.uk)
 CIRIA website (http://www.ciria.org/)
 Control of water pollution from construction sites - guide to good practice
CIRIA SP156 (www.ciria.org/)
 Operation and maintenance of sustainable drainage systems (and
associated costs) Report SR626 (HR Wallingford 2004)
 Pollution Prevention Guidelines, available from the NetRegs website
(www.netregs.org.uk/)
•
Waste and Sewage PPGs
PPG 3: Use and design of oil separators in surface water drainage
systems
•
Construction PPGs
PPG 5: Works and maintenance in or near water
PPG 6: Working at construction and demolition sites
 SEPA Policy 5: Policy Statement on Enforcement (www.sepa.org.uk)
 Sewers for Scotland 3rd Edition, 2015 (www.scottishwater.co.uk)
 SUDS Manual (CIRIA C753) (www.susdrain.org)
 The Control of Pollution (Silage, Slurry and Agricultural Fuel Oil)
(Scotland) Regulations 2003 (www.legislation.gov. uk) SSI No 531, 2003
 The Water Environment (Controlled Activities)(Scotland) Regulations
(www.legislation.gov.uk)
 Water Assessment and Drainage Assessment Guide (WADAG)
SUDSWP (www.sepa.org.uk)
- End of Document 18 of 18
Uncontrolled if printed
v4.1 Mar 2016