Straitgate Action Group
In 1965, Straitgate Farm near Ottery St Mary in Devon was bought by ECC Quarries in the hope it would yield 20 million tonnes of sand & gravel. In 2001, Straitgate Action Group was formed to oppose the development and its potential harm to water supplies, ancient wetland habitats, protected species and much more. In 2023, Aggregate Industries – now Holcim UK – was finally granted permission to quarry just 1 million tonnes following a public inquiry. This blog records the story.
Tuesday, 1 April 2025
Holcim UK’s Straitgate updates for February and March – still awaited
Thursday, 27 March 2025
Devon sand & gravel sales in 2023: lowest on record – down 29% on previous year
Devon’s sales of sand and gravel have remained fairly consistently around the half million tonne mark since 2011. Prior to 2023, 2020 had seen the lowest figure of the decade with sales of 0.437mt (possibly attributable to the effects of the Covid pandemic) whilst 2021 saw a rise back up to 2018 levels, with a sales figure of 0.54mt. 2022 sales remained on a similar level with a sales figure of 0.52mt but 2023 witnessed a fairly dramatic drop down to 0.37mt taking over from 2020 as the lowest figure of the decade by a reasonable margin.
2.23 Devon has suggested that the decrease in sales this year is a result of the economic uncertainty brought about by market volatility, worldwide events and the pandemic, which the UK economy is still recovering from.
In 2023, aggregate sales of land won sand and gravel in the region totalled 2.26mt, a decrease from 2022’s sales figure of 2.75mt
...ready-mixed concrete, ubiquitous to all types of construction projects, faced a 10.8% annual decline in 2024, reaching its lowest level in over 60 years. Primary aggregates sales declined by 2.6%, with sand and gravel particularly impacted due to weak demand from the struggling ready-mixed concrete market, where it is mostly used.
Wednesday, 26 March 2025
‘We don’t just talk the talk’ – Really?
A strategy must be for the employees as much as the employer, and it’s vital they feel part of the overall sustainability journey. For us, that meant providing individual areas of ownership, a key element of which is creating ‘a place for nature’ across all our 200 sites nationwide.
We developed 29 places for nature in 2023 which fell short of our target.
Monday, 17 March 2025
Straitgate’s ‘revolutionary’ working scheme not being deployed at Penslade
AI's seasonal working scheme has now been described as "revolutionary"; not by us, but by someone on the other side closely connected to all this.How exciting! Local people will be thrilled. Thrilled at the prospect of being part of an experiment, where their drinking water supplies are reliant on the success of this "revolutionary" scheme; a scheme that relies on groundwater levels falling over the summer months to allow AI to quarry down to the maximum water table level, rather than leaving the 1m unquarried buffer above the maximum water table typically employed to safeguard surrounding water supplies.
Friday, 14 March 2025
Aggregate Industries rebrands as Holcim UK
Holcim UK’s strategy will see the organisation target significant growth in sales and sustainability – with particular focus on decarbonisation, circularity and nature... etc etc
Our evolution from Aggregate Industries to Holcim UK is much more than a rebrand.
Brazil mining dam disaster: Trial concludes in UK’s largest class-action lawsuit
More than 600,000 Brazilians, 46 local governments and about 2,000 businesses are suing BHP over the disaster in a lawsuit worth up to £36bn.
The lawsuit, one of the largest in English legal history, began in October and ended on Thursday with closing submissions.
“I will produce a judgment as soon as I can,” the judge, Finola O’Farrell, said as she announced the end of the trial.
A trial to decide Australian mining giant BHP's liability for one of Brazil's worst environmental disasters concluded in London on Thursday, with hundreds of thousands of victims demanding billions in compensation @CorpusculO https://t.co/VCfbzYgNw7
— AFP News Agency (@AFP) March 13, 2025
London trial concludes in largest ever UK group action — more than 600,000 Brazilians, 46 local governments and 2,000 businesses are suing BHP over Brazil dam disaster in lawsuit worth up to £36bn. https://t.co/IM92NOh7qZ
— Glaspell — Class Actions (@Glaspell) March 14, 2025
Monday, 10 March 2025
Aggregate Industries’ Straitgate update for February – still awaited
Glendinning wash plant ‘reduces reliance on imported sands’
Creating various limestone aggregates from 6mm to 20mm, the site also produces 0-4mm washed, crushed aggregate fines (black concrete sand). This black sand is mixed with traditional china clay sand, before being used in ready-mixed concrete at the firm’s plants within the quarry and in nearby Plymouth and in Exeter.By being able to use a larger percentage of the black sand within the ready-mixed concrete plant, Glendinning have been able to reduce their reliance on imported sands, lowering their carbon footprint and reducing truck transport on local roads.
Articles from the February 2025 issue Quarry Management are now available to view on Agg-Net - https://t.co/9ZnL5Bz2TC - Site report on new PowerX Equipment wash plant at Glendinning’s Linhay Hill Quarry; Screens & Grizzlies; Institute of Quarrying; Special reports pic.twitter.com/0G4DNhg7PX
— Agg-Net (@aggnetweb) March 6, 2025
Thursday, 6 March 2025
Aggregate Industries submits planning application to extend Hillhead Quarry
Proposed extension of Hillhead quarry for the winning and working of sand and gravel with restoration using imported inert fill, inclusive of a new internal haul road and the retention of the existing mineral processing facilities
Hillhead Quarry is the main source of sand and gravel in Devon and is Aggregate Industries’ only sand and gravel quarry in the south west.
The proposed Hillhead extension is identified as a minerals allocation in the Devon Minerals Plan as the replacement resource for the existing Hillhead sand and gravel quarry, which on current production rates has permitted reserves until c. 2028/9. We are starting the planning process for our Hillhead extension now in order to allow sufficient time to enable an orderly and planned transition of mineral working to the new extension area to take place in c.2028/9.
82. Although development of the allocated site west of Penslade Cross would contribute significantly to supply, there is no immediate prospect of this coming forward, and our decision must be based on the current situation with respect to sand and gravel supply.137. We have already noted that there is little prospect of the allocated site at west of Penslade Cross coming forward in the near future. Therefore, any advantage that that site would have over the appeal site in terms of its proximity to Hillhead Quarry is not material to our decision.
UK construction activity falls at fastest pace since 2020
UK construction PMI falls to lowest since 2020 as house-building plummets https://t.co/4oSowP6mrv pic.twitter.com/C54ZcnOAXy
— Reuters (@Reuters) March 6, 2025
Wednesday, 5 February 2025
MPA: ‘Road ahead remains uncertain and peppered with potholes’
Despite these encouraging signals, the MPA data also underscores the severity of the construction slowdown over the past two years and the major challenges facing the £22 billion mineral products industry. For example, annual mortar sales fell by 15% in 2024, dropping below 2 million tonnes - some 28% lower than their 2022 peak of 2.7 million tonnes.Similarly, ready-mixed concrete, ubiquitous to all types of construction projects, faced a 10.8% annual decline in 2024, reaching its lowest level in over 60 years. Primary aggregates sales declined by 2.6%, with sand and gravel particularly impacted due to weak demand from the struggling ready-mixed concrete market, where it is mostly used.
Tuesday, 4 February 2025
Aggregate Industries’ Straitgate update for January
I don't have anything to report at this time, but anticipate that I will be in a position to provide you with an update at the end of this month.
Friday, 17 January 2025
AI’s Planning Manager overseeing Straitgate leaves the company
Friday, 20 December 2024
Merry Christmas
- have a raft of schemes to satisfy pre-commencement planning conditions approved by Devon County Council;
- evict the dairy farm tenants – whose family has farmed at Straitgate for nearly 100 years – to overcome the expired cattle crossing permission and to achieve the enhanced biodiversity net gain figures required;
- design a workable site access scheme to fit in the narrow space between the two TPO’d oak trees and the third party hedgebank;
- design a surface water management plan – based on a series of yet-to-be-performed and results-far-from-certain infiltrometer drainage tests – that will not risk creating any prohibited-by-planning-conditions bodies of water, noting how problematical surface water management is currently proving for the company at Hillhead;
- drill 4 new boreholes, install piezometers, and complete 12 months of baseline monitoring from them;
- correct some of its water monitoring programme, and complete 12 months of accurate baseline monitoring;
- and more...
The current estimate completion date for extraction [at Houndaller] is end of 2029 with completion of restoration and landscaping by 2031, this is based on an average production rate of 350,000 tonnes per annum.
Monday, 16 December 2024
Aggregate Industries’ Straitgate update for November
There are no updates this month.
AI’s Hillhead surface water management plan – more dodgy assumptions?
…research, published in Nature Communications, found that under a high emissions scenario (RCP 8.5) rainfall events in the UK exceeding 20mm/hr could be four times as frequent by 2080 compared to the 1980s.
The fact that [Houndaller Plantation] pond can sustain long-term and regular abstraction… means that it would be similarly effective as a soakaway.
There remains, therefore, no cogent evidence – measurements or otherwise – of the soakaway capacity at Houndaller Plantation Pond. It is wrong to assume that Houndaller Pond would be “similarly effective as a soakaway”, and therefore it does not necessarily ‘follow’ that Houndaller Pond could cope with exceedance flows from a storm event.
... it appears that the applicant’s revised plans have not allowed sufficient storage space within the extraction area for the design storm event:The applicant claims “the ASV [Attenuation Storage Volume] requirement equates to 3,350 m3 during the design event (1 in 100-yr + 45% allowance for storm intensity due to climate change)” and that “the revised surface water management plan for Houndaller (by incorporating 3,416.60 m3 within the former extraction area) will provide sufficient storage space for the design event.”The applicant claims runoff rates and attenuation requirements were computed using “the assumption that 12.75 hectares [127,500m2] of the catchment area would possess runoff characteristics analogous to that of an impermeable paved surface.” The applicant has not provided any output from those computations to substantiate the conclusions.An ASV of 3,350m3 divided by the impermeable catchment area of 127,500m2, implies the applicant has modelled for a rainfall event of 0.0263m or 26.3mm.This would seem to be an inadequate figure, given the historic records for nearby areas:“June 1946 In Cullompton, 2.35 in [60 mm] of rain fell in 45 minutes and ... in the lower part of the town flooding was 3 ft deep in houses.”“22 October 1960 Flooding occurred in Crediton, following a total of 64 mm of rain on 20 and 21 October (recorded in Exeter)”“21 November 2012 Between 20mm to 39mm (0.8in to 1.5in) fell in 12 hours overnight on already saturated ground.”The University of Exeter Weather Observation Records has the Highest Daily Rainfall at 47.20 mm on 4 September 2024.The UK’s wettest day, in records back to 1891, was 3 October 2020. The average rainfall across the entire UK was calculated at 31.7mm. The Met Office says record-breaking rainfall like that seen on 3 October 2020 could be 10 times more likely by 2100.
Using the FEH22 rainfall depth-duration-frequency model for that area, 26.3mm is less than a 1-hour, 30-year event; by contrast, a 12-hour, 100-year event would exceed 90mm.
A 90mm rainfall event, with the same impermeable catchment area of 127,500m2, would require a much larger storage capacity of 11,475m3...
AI seeks to delay Chard Junction Quarry restoration in Dorset AONB – again
Reason: To safeguard the natural environment and amenity of the local area and to ensure the timely restoration of the site in accordance with Policies SSI (Presumption in favour of sustainable development), RS1 (Restoration, Aftercare and Afteruse of Minerals Development) and DM4 (Protection and Enhancement of Landscape Character and the Countryside) of the Bournemouth, Dorset and Poole Minerals Strategy.
5.4 … given that permission WD/D/20/000313 lapsed on 31 March 2023, and that application WD/D/19/000451 was refused, for the operator to fulfil its obligation in restoring these areas, they are now proposing to vary the requirements of condition 3 (Duration of the development permitted) of Planning Permission WD/D/20/000313, to extend the end date to 31 December 2024, in order to have further time in which to restore the site.
Whilst our clear preference would be for the timely completion of restoration in line with the planning consent, we do not feel it appropriate to object to the requested extension of time. We recommend that the Council carefully examine the reasons for a time extension and reach an opinion as to the reasonableness of this in relation to the circumstances.
We are therefore seeking to vary Condition 1 of the Permission to extend the end date for completing restoration of the site to the 31 December 2025.Please be assured that the company remain committed to the completion of the restoration of this site and the delay that has caused this application has been due to matters entirely outside of our control.
Thursday, 5 December 2024
AI’s water monitoring at Straitgate being undertaken incorrectly at several properties
Another quarry accused of disrupting water supplies
...everything changed and it was clear the spring had been contaminated because the water was coming out brown and dirty...[which] coincided with the operators of the quarry near our home being served with statutory notices for quarrying outside their permitted area
Ali says part of the planning agreement carried conditions that her private water supply would be protected - but already, she says, it has been affected.She said: "It's basically an ancient spring out of the ground, where you won't get any planning that says where it comes from, because nobody knows - but it's been here for as long as this building has been up, for hundreds of years."The water goes naturally into a tank that's in the ground. This farm used to be a dairy farm, so it supplied this whole place with water. And it's never been a drama. I only ran out of water once years ago when we had a big drought. It all works fine, it's dead old-fashioned but I've never wanted to or had to change it."So while this proposal was going on, I had contacted MPs. I contacted Planning and everyone has ignored me, nobody's done anything. On the back of that, both East Renfrewshire Council and East Ayrshire Council are going to get 7p a ton from the aggregate that's taken out of this quarry, so there's money involved for the councils too."She added: "They've now started the digging. I wasn't informed about it at all."Part of the concessions that were approved in the planning stage was that the water at this farm [West Carswell Farm] had to be sorted, and that West Carswell was either to be connected to the mains or some other solution. But nothing's happened."Ali said plumbing experts believe disturbance to the ground from the launch of the quarry works may have put “muck” in the water with the silt clogging old pipes. She added: "There's water in the tank... but there's no water getting to my property."
At Straitgate, water supplies for 100 people, 3 farms and Grade I Cadhay would be in the hands of one digger driver. What could possibly go wrong? And - with an extensive catalogue of ignored warnings from local residents going back years - how many nationals would cover the story if it did?
Renfrewshire woman devastated as quarry works begin near dream countryside home.https://t.co/zWOHLHnXz1
— Glasgow Live (@Glasgow_Live) December 3, 2024
AI joint venture blames economic slowdown for quarry restoration delay
Restoration work at an Isle of Wight quarry with tens of thousands of tonnes of fill material will continue for two more years following a council decision.
The submitted information states that the downturn in the economy caused by rising interest rates and the cost of living over 2022/23 has caused the slowing rate of restoration for the quarry. Therefore, the restoration scheme cannot be completed by the 2024 deadline.
a line drawn within or around a prison that a prisoner passes at the risk of being shot
a line that does not move
Friday, 29 November 2024
EA issues Closure Notice to Walleys Quarry Ltd
The Environment Agency has today, 28 November 2024, issued a Closure Notice to Walleys Quarry Ltd (WQL).
— Env Agency Midlands (@EnvAgencyMids) November 28, 2024
For full details of what this means visit: https://t.co/zNrm5r8P0I
Walleys Quarry landfill that is ran by @RedIndustries2 have today been issued with a closure notice!!! It's done!!!Thank you to to @AJogee for you and all your teams hard work. We've spent years breathing this poison, it's time we got a breath of fresh air #StopTheStink pic.twitter.com/r62RSwbPuO
— Stop The Stink (@StinkStopthe) November 28, 2024
Today is a good day for the people of Newcastle-under-Lyme.
— Adam Jogee MP (@AJogee) November 28, 2024
Finally - after everything - a closure notice has today been issued to Walleys Quarry Ltd. #LoveNuL 🇬🇧🌹 pic.twitter.com/StH1f71hT3
Tuesday, 26 November 2024
Rick Brassington, Field Hydrogeology, 5th Edition
23. ...we are not persuaded that piston flow is the dominant flow mechanism in the BSPB or at the site... 27. ...we prefer the appellant’s model of rapid infiltration...
There were a number of small changes [in this edition] but the biggest new addition covers flow through the vadose [unsaturated] zone. This came about when I failed to explain this to intelligent people who had no knowledge of geology who decided that they would rather accept a simple picture of rapid recharge flow with the unrealistically high value for the hydraulic conductivity in the vadose zone rather than the complex system that nature has provided for us. You will have to read it to see what I mean; it is now at the end of Chapter 3.
Sunday, 24 November 2024
AI sense-checks AI... and its soakaway assumptions at Hillhead
Planning documents often contain vast amounts of valuable information, but accessing and using this data can be challenging. Artificial intelligence (AI) offers a potentially promising solution by efficiently processing and interrogating large volumes of data to extract key information and insights.
EIW, LM and TB had recently attended a POS [Planning Officers Society] meeting. Various matters had been discussed including safeguarding, the Finch case (and adopting a cautious approach) and the use of artificial intelligence (AI) in the planning process, particularly in the analysis of consultation responses.
Variation of conditions 2, 4, 6, 7, 12, 19, 22 and 25 of ROMP permission DCC/3655/2014... to vary the phasing; landform; drainage; and restoration of the site.
We are concerned that the ES Chapter 9 Hydrological & Hydrogeological Impact Assessment Version 2 May 2024 for the above application is incorrect, more specifically that the calculated soakaway rate at Houndaller Plantation Pond of 5,000 m3/d is impossibly large.
5.8.8.7 ...Houndaller Plantation Pond has sufficient soakaway capacity for the design storm.
Following discussions at the site meeting held on 4th July 2024, an updated surface water management scheme has been prepared where, following mineral extraction operations, all surface water will be managed in the former extraction area, with Houndaller Pond only acting as an exceedance route.
AIUK abstracts water from the groundwater-fed Houndaller Pond in accordance with Abstraction Licence No. SW/045/0002/055.The quarry operator has confirmed that they make full use of this licence. The rate of abstraction is set at 14 l/s, equating to 50 m3/hr. The annual rate of abstraction comes to 180,000 m3/year.This abstraction activity is a sustained process, occurring day after day, and the average groundwater level contours (Figure 5 in BCL’s report) are only c.1 m below the maximum levels (Figure 6), showing that abstraction (drawdown) impacts on water level in the pond are relatively limited.The fact that the pond can sustain long-term and regular abstraction at 14 l/s means that it would be similarly effective as a soakaway. It follows that occasional input to Houndaller Pond as a result of storm runoff would not be expected to raise the long-term water level in the pond.
The fact that the pond can sustain long-term and regular abstraction… means that it would be similarly effective as a soakaway.
* "Similarly Effective as a Soakaway":While the pond can sustain the current abstraction rate, it's not necessarily directly comparable to a soakaway. A soakaway is designed to absorb and disperse water into the surrounding soil, while a pond primarily stores water.
If a groundwater-fed pond can sustain long-term, regular abstraction, it could theoretically serve some functions similar to a soakaway, but there are important differences in design, function, and environmental impact to consider.* Soakaway: A soakaway is designed specifically to manage surface runoff, allowing water to percolate directly into the ground and recharge the groundwater at a controlled rate. It's typically used in areas where rainwater needs to be quickly drained to avoid surface flooding.* Pond: A groundwater-fed pond typically has a different purpose, such as wildlife habitat, aesthetics, or water storage. While it may lose some water through infiltration, its primary function isn’t to allow for rapid or direct infiltration into the subsurface layers like a soakaway…. etc etc
Not true. No. No. No.