Kent 7Th Local Aggregate Assessment
Total Page:16
File Type:pdf, Size:1020Kb
Kent County Council Local Aggregate Assessment 2019 April 2020 Contents Dashboard Summary ................................................................................................. iii Executive Summary ................................................................................................... 7 1. Introduction .......................................................................................................... 8 2. Land Won Aggregate ........................................................................................ 10 Geology of Kent .............................................................................................. 10 Permitted Sites Producing Aggregates in Kent............................................... 10 Sand (Soft and Sharp) and Gravel and Hard Rock Production and Sales ..... 16 3. Recycled/Secondary Aggregates....................................................................... 19 4. Wharves (Marine-won Sand and Gravel) ........................................................... 21 5. Crushed Rock .................................................................................................... 24 6. Total Aggregate Production in Kent in 2009-2018 ............................................. 27 7. Future Aggregate Supply ................................................................................... 29 Available Reserves or Landbanks .................................................................. 31 Soft Sands ...................................................................................................... 31 Sharp Sands and Gravel ................................................................................ 32 Hard Rock ...................................................................................................... 33 Future Potential Resources ............................................................................ 33 Productive Capacity ....................................................................................... 35 8. Overall Conclusions and Review of the Local Aggregate Assessment ................. 38 Appendix 1 - Annual Calculation of Aggregate Supply as required by Adopted KMWLP Policy CSM2. Calculation of Need for Aggregate Supply (Policy CSM: 2 Supply of land-won Minerals in Kent) over the Kent Minerals and Waste Local Plan (the KMWLP) 2013-30 Period ............................................................................... 42 Tables and Figures Table 1: Permitted Quarries in Kent 2018 ................................................................ 15 Table 2: Landwon Soft Sand and Sharp Sand and Gravel Sales in Kent, 2009-2018 (Million tonnes) ......................................................................................................... 16 Table 3: Kent Aggregate Reserves and Aggregate Landbank as of 2018 ............... 19 Table 4: Recycled and Secondary Aggregate Sales in Kent, 2009-2018 (Million tonnes) ..................................................................................................................... 21 Table 5: Marine Sand and Gravel Sales in Kent, 2009-2018 (Million tonnes) .......... 22 Table 6: Aggregate Sales from Rail Depots and Wharves in Kent, 2009-2018 (Million tonnes) including land-won and marine dredged materials in aggregated totals ...... 26 Table 7: Total Aggregate Production in Kent during 2009-2018 (Million tonnes) ..... 27 Table 8: Levels of Planned Housing and Infrastructure in Kent excluding Medway . 29 Table 9: Landwon Aggregates Sales - Soft Sands 2009-18 ..................................... 32 Table 10: Landwon Aggregates Sales Sharp Sands and Gravels 2009-18 ............. 32 Table 11: Mineral Sites Plan (Regulation 19 stage) Sites for Land-won Aggregates 34 Table 12: Total Sales and Estimated Production Capacity, 2017 and 2018 (million tonnes per annum) ................................................................................................... 37 Figure 1: Geology of Kent both Solid and Superficial .............................................. 11 Figure 2: Location of Active Quarries and Safeguarded Wharves and Rail Depots in 2018 ......................................................................................................................... 13 Figure 3: Sales of landwon Soft Sand and Sharp Sand and Gravel 2009-18 (Tonnes) ................................................................................................................................. 16 Figure 4: Location Map of Active Recycled and Secondary Aggregate Sites in Kent, 2018 ......................................................................................................................... 20 Figure 5: Location Map of Active Rail Depots in Kent, 2018 .................................... 25 Figure 6: Extract from Figure from Figure 12 - The Interchangeability of Construction Aggregates 2012 of Topic Report: Interchangeability of Construction Aggregates (ref. KCC/MWLP/CS/020) ................................................................................................ 39 ii Dashboard Summary - Kent County Council LAA2019 (using data for the calendar year 2018) Aggregate Mineral Type Permitted (and origin; Average Average Reserve LAA 7-year 2018 Trend Trend Landbank land-won, (10 yr.) (3yr) LAA Rate as per Landbank based Productive Sales in (10 yr. (3 yr. (current marine Sales in Sales in mtpa end of on LLA Rate Capacity (tpa) Comments tonnes or sales) sales) Reserves dredged and tonnes or tonnes or 2018 mt mt divided by imports) mt mt current sales) Soft Sand The reserve base has decreased due to further (excluding extraction in 2018. The LAA rate is the same as silica sand) the 10-year average, given it is considered that local modelling to justify an increase in this metric 3.79mt and a when calculating need is inherently unreliable. 15.3 920,000 Therefore, the NPPF requirement as set out in 493,179 541,907 506,502 0.542 8.3 16.8 years years NPPF (compared paragraph 145 is considered the appropriate maintained to 895,000 in method to identify future supply needs. The landbank at 2018 2017) recorded permitted reserves (8.3mt) will fall below the 7-year NPPF landbank minimum (3.825mt) in some 5 to 6 years’ time at the current 10-year average sales extraction rate. Sharp Sand & The reserve base has decreased from 3.69mt in Gravel 2017 to 3.30mt in 2018, no new planning permissions have replenished the overall landbank over this time. The LAA rate is the same as the 10-year average, given it is considered that modelling to justify an increase in this metric is inherently unreliable. Therefore, the NPPF requirement as set out in paragraph 145 is considered the appropriate method to identify supply needs. 2.807mt and an 1,150,000 3.3 8.2 (compared As reported in LAA2018, the effect of operations 119,259 401,508 176,658 0.401 (hoggin 27.7 years years NPPF to 1,101,000 moving across the Kent-East Sussex border 0.54) maintained in 2017) continues to have the effect of lowering the sales landbank at 2018 averages and extending the apparent available landbank life in Kent. The historic Kent market, that the Lydd Quarry serves, continues to be supplied by materials from this site that are now extracted from outside Kent. The Kent landbank life and sales averages figures should be treated with caution as they are being lowered by the cessation of Kent recorded sales from Lydd. Actual consumption in Kent is undoubtedly higher than these metrics indicate. iii However, it is reasonable to assume that the pattern of sales and consumption along the east- west axis in this area of the two respective authorities has not necessarily materially changed. Therefore, it can be concluded that the Kent land-won sharp sand and gravel resources continue to be depleted by consumption at a rate similar to that of the past without replenishment. All Sand & This demonstrates that Kent produces a Gravel (land- significant quantity of land-won aggregate though won) the 10-year average is in decline, this being due to the reductions in sharp sand and gravel sales, 612,438 0.931mt 0.718mt 0.95 11.6 N/A N/A N/A and sales from one site now being recorded in East Sussex County Council’s area. Both the short-term and longer-term sales average are showing a downward trend. Crushed Kent continues to have only two active hard rock Rock (land- In excess of 30 sites producing aggregates; therefore, the agreed won) c1 c C c c 0.782 c c years c level of confidentiality would be breached if the sales figures were to be disclosed. Recycled/ Sales of secondary and recycled aggregates Secondary (derived from both the C, D & E waste and Aggregates industrial by-products sectors) slightly decreased in 2018 compared to 2017 (0.757mt compared to 4,008,000 0.906mt). However, the underlying trend is N/A (compared increasing given the three-year sales average 0.816 N/A N/A 0.816mt to 4,188,000 trend increase. Overall productive capacity (as 0.757mt 0.897mt in 2017) recorded from Annual Monitoring (AM) returns) is largely unchanged, with some slight decrease overall. 1 C denotes a confidentiality has to be maintained 2 0.78 is the proxy for the anticipated land-won crushed rock production used in the adopted Kent Minerals and Waste Local Plan 2013-30, due to ongoing confidentiality this has not been updated iv Marine Sand There is an increase in the 3-year and 10-year & Gravel (mt) averages, in 2017 they were 1.812mt and 1.790mt respectively, now they are 2.103mt and N/A 1.973mt. The increase shows that the importation of marine