Minerals and Waste Local Plan: Pre-Submission Publication

Object

Representation ID: 99180

Received: 04/11/2022

Respondent: Water Management Alliance

Legally compliant? Not specified

Sound? Not specified

Duty to co-operate? Not specified

Following review, we note one allocation site which is partially within the Internal Drainage District (IDD) of the King’s Lynn Internal Drainage Board (IDB) and therefore the Board’s Byelaws apply at this site. Whilst the Board’s regulatory process (as set out under the Land Drainage Act 1991 and the Board’s Byelaws) is separate from planning, the ability to implement a planning permission may be dependent on the granting of any required Land Drainage Consents.
We have previously commented on the planning applications for the site area included within allocation MIN 40 at Land East of Grandcourt Farm, East Winch (C/2/2018/2016 and C/2/2018/2017). The Board's Officers are in contact with the site owner about existing discharges from their operations into the Board's critical maintained watercourse known as Middleton Stop Drain located south of Leziate Works.
Site MIN 40 may require Land Drainage Consent from the Board as outlined in the table below and this has the potential to generate conflict between the planning process and the Board's regulatory regime.
Byelaw 3 - Discharge of water to a watercourse (treated foul or surface water) - Consent required
Section 23, Land Drainage Act 1991 - Alteration of a watercourse - Consent may be required
Byelaw 10 - Works within 9 metres of a Broad maintained watercourse - Consent may be required
The Board is particularly concerned about further volumes of water being discharged from the proposed allocation site MIN 40 which could negatively affect the Board's ability to manage catchment flood risk to an acceptable standard.

Object

Representation ID: 99181

Received: 04/11/2022

Respondent: Water Management Alliance

Legally compliant? Not specified

Sound? Not specified

Duty to co-operate? Not specified

Regarding paragraph M40.17, it is essential that the site operator is able to contain any suspended solids arising from their activities which might be detrimental to the Board's Drainage / Flood Risk Management Infrastructure (see also Byelaw 7). The plan needs to provide further detail on the strategy for eliminating silt from entering the wider drainage network.

Comment

Representation ID: 99182

Received: 04/11/2022

Respondent: Water Management Alliance

The sites allocated within the local plan listed below are not within any of the WMA member Boards’ Internal Drainage Districts (IDD) however several sites are within a Board’s Watershed Catchment (meaning water from the site will eventually enter the IDD). Maps are available on the Board’s webpages showing the Internal Drainage District well as the wider watershed catchments.
For any site with the potential to discharge water indirectly to a WMA Board catchment, we recommend that a drainage strategy is supplied which has been considered in line with the Planning Practice Guidance SuDS discharge location hierarchy. If a surface water discharge proposed to a watercourse within the watershed catchment of the Board’s IDD then we request that this be in line with the Non-Statutory technical standards for sustainable drainage systems (SuDS), specifically S2 and S4. Resultantly we recommend that the discharge from this site is attenuated to the Greenfield Runoff Rates wherever possible. We recommend that due consideration is given to ensuring that runoff from any allocated site is clear from silt and this is closely monitored to protect watercourses from pollution.
MIN12 Internal Drainage District Watershed catchment is Norfolk Rivers IDB

Comment

Representation ID: 99183

Received: 04/11/2022

Respondent: Water Management Alliance

The sites allocated within the local plan listed below are not within any of the WMA member Boards’ Internal Drainage Districts (IDD) however several sites are within a Board’s Watershed Catchment (meaning water from the site will eventually enter the IDD). Maps are available on the Board’s webpages showing the Internal Drainage District well as the wider watershed catchments.
For any site with the potential to discharge water indirectly to a WMA Board catchment, we recommend that a drainage strategy is supplied which has been considered in line with the Planning Practice Guidance SuDS discharge location hierarchy. If a surface water discharge proposed to a watercourse within the watershed catchment of the Board’s IDD then we request that this be in line with the Non-Statutory technical standards for sustainable drainage systems (SuDS), specifically S2 and S4. Resultantly we recommend that the discharge from this site is attenuated to the Greenfield Runoff Rates wherever possible. We recommend that due consideration is given to ensuring that runoff from any allocated site is clear from silt and this is closely monitored to protect watercourses from pollution.
MIN51 / MIN 13 / MIN 08 Internal Drainage District Watershed catchment is Norfolk Rivers IDB

Comment

Representation ID: 99186

Received: 04/11/2022

Respondent: Water Management Alliance

The sites allocated within the local plan listed below are not within any of the WMA member Boards’ Internal Drainage Districts (IDD) however several sites are within a Board’s Watershed Catchment (meaning water from the site will eventually enter the IDD). Maps are available on the Board’s webpages showing the Internal Drainage District well as the wider watershed catchments.
For any site with the potential to discharge water indirectly to a WMA Board catchment, we recommend that a drainage strategy is supplied which has been considered in line with the Planning Practice Guidance SuDS discharge location hierarchy. If a surface water discharge proposed to a watercourse within the watershed catchment of the Board’s IDD then we request that this be in line with the Non-Statutory technical standards for sustainable drainage systems (SuDS), specifically S2 and S4. Resultantly we recommend that the discharge from this site is attenuated to the Greenfield Runoff Rates wherever possible. We recommend that due consideration is given to ensuring that runoff from any allocated site is clear from silt and this is closely monitored to protect watercourses from pollution.
MIN202 Internal Drainage District Watershed catchment is Norfolk Rivers IDB

Comment

Representation ID: 99187

Received: 04/11/2022

Respondent: Water Management Alliance

The sites allocated within the local plan listed below are not within any of the WMA member Boards’ Internal Drainage Districts (IDD) however several sites are within a Board’s Watershed Catchment (meaning water from the site will eventually enter the IDD). Maps are available on the Board’s webpages showing the Internal Drainage District well as the wider watershed catchments.
For any site with the potential to discharge water indirectly to a WMA Board catchment, we recommend that a drainage strategy is supplied which has been considered in line with the Planning Practice Guidance SuDS discharge location hierarchy. If a surface water discharge proposed to a watercourse within the watershed catchment of the Board’s IDD then we request that this be in line with the Non-Statutory technical standards for sustainable drainage systems (SuDS), specifically S2 and S4. Resultantly we recommend that the discharge from this site is attenuated to the Greenfield Runoff Rates wherever possible. We recommend that due consideration is given to ensuring that runoff from any allocated site is clear from silt and this is closely monitored to protect watercourses from pollution.
MIN37 Internal Drainage District Watershed catchment is Norfolk Rivers IDB

Comment

Representation ID: 99188

Received: 04/11/2022

Respondent: Water Management Alliance

The sites allocated within the local plan listed below are not within any of the WMA member Boards’ Internal Drainage Districts (IDD) however several sites are within a Board’s Watershed Catchment (meaning water from the site will eventually enter the IDD). Maps are available on the Board’s webpages showing the Internal Drainage District well as the wider watershed catchments.
For any site with the potential to discharge water indirectly to a WMA Board catchment, we recommend that a drainage strategy is supplied which has been considered in line with the Planning Practice Guidance SuDS discharge location hierarchy. If a surface water discharge proposed to a watercourse within the watershed catchment of the Board’s IDD then we request that this be in line with the Non-Statutory technical standards for sustainable drainage systems (SuDS), specifically S2 and S4. Resultantly we recommend that the discharge from this site is attenuated to the Greenfield Runoff Rates wherever possible. We recommend that due consideration is given to ensuring that runoff from any allocated site is clear from silt and this is closely monitored to protect watercourses from pollution.
MIN64 Internal Drainage District Watershed catchment is Norfolk Rivers IDB

Comment

Representation ID: 99189

Received: 04/11/2022

Respondent: Water Management Alliance

The sites allocated within the local plan listed below are not within any of the WMA member Boards’ Internal Drainage Districts (IDD) however several sites are within a Board’s Watershed Catchment (meaning water from the site will eventually enter the IDD). Maps are available on the Board’s webpages showing the Internal Drainage District well as the wider watershed catchments.
For any site with the potential to discharge water indirectly to a WMA Board catchment, we recommend that a drainage strategy is supplied which has been considered in line with the Planning Practice Guidance SuDS discharge location hierarchy. If a surface water discharge proposed to a watercourse within the watershed catchment of the Board’s IDD then we request that this be in line with the Non-Statutory technical standards for sustainable drainage systems (SuDS), specifically S2 and S4. Resultantly we recommend that the discharge from this site is attenuated to the Greenfield Runoff Rates wherever possible. We recommend that due consideration is given to ensuring that runoff from any allocated site is clear from silt and this is closely monitored to protect watercourses from pollution.
MIN65 Internal Drainage District Watershed catchment is Norfolk Rivers IDB

Comment

Representation ID: 99190

Received: 04/11/2022

Respondent: Water Management Alliance

The sites allocated within the local plan listed below are not within any of the WMA member Boards’ Internal Drainage Districts (IDD) however several sites are within a Board’s Watershed Catchment (meaning water from the site will eventually enter the IDD). Maps are available on the Board’s webpages showing the Internal Drainage District well as the wider watershed catchments.
For any site with the potential to discharge water indirectly to a WMA Board catchment, we recommend that a drainage strategy is supplied which has been considered in line with the Planning Practice Guidance SuDS discharge location hierarchy. If a surface water discharge proposed to a watercourse within the watershed catchment of the Board’s IDD then we request that this be in line with the Non-Statutory technical standards for sustainable drainage systems (SuDS), specifically S2 and S4. Resultantly we recommend that the discharge from this site is attenuated to the Greenfield Runoff Rates wherever possible. We recommend that due consideration is given to ensuring that runoff from any allocated site is clear from silt and this is closely monitored to protect watercourses from pollution.
MIN96 Internal Drainage District Watershed catchment is Norfolk Rivers IDB

Comment

Representation ID: 99191

Received: 04/11/2022

Respondent: Water Management Alliance

The sites allocated within the local plan listed below are not within any of the WMA member Boards’ Internal Drainage Districts (IDD) however several sites are within a Board’s Watershed Catchment (meaning water from the site will eventually enter the IDD). Maps are available on the Board’s webpages showing the Internal Drainage District well as the wider watershed catchments.
For any site with the potential to discharge water indirectly to a WMA Board catchment, we recommend that a drainage strategy is supplied which has been considered in line with the Planning Practice Guidance SuDS discharge location hierarchy. If a surface water discharge proposed to a watercourse within the watershed catchment of the Board’s IDD then we request that this be in line with the Non-Statutory technical standards for sustainable drainage systems (SuDS), specifically S2 and S4. Resultantly we recommend that the discharge from this site is attenuated to the Greenfield Runoff Rates wherever possible. We recommend that due consideration is given to ensuring that runoff from any allocated site is clear from silt and this is closely monitored to protect watercourses from pollution.
MIN69 Internal Drainage District Watershed catchment is Norfolk Rivers IDB