--- title: "Cookie & Local Storage Policy | SoakawayCalculator.co.uk | SoakawayCalculator.co.uk" source_url: "https://soakawaycalculator.co.uk/cookies" retrieved_by: "AnswerRail Edge Engine v1.1.0-parity-v20 (https://answerrail.com)" level_of_detail: "standard" token_payload_reduction: "88.4%" raw_html_bytes: 68359 compiled_body_bytes: 7912 entities_extracted: 6 currency_recall_static_html: "100%" monitored_currency_tokens: 1 link_recall_static_html: "100%" monitored_content_links: 4 rfc_compliance: "RFC 9110" last_verified_at: "2026-10-17T12:55:55.500Z" cache_age_seconds: 0 origin_cache_control: "public, max-age=0, must-revalidate" --- > **Canonical Source:** [https://soakawaycalculator.co.uk/cookies](https://soakawaycalculator.co.uk/cookies) > > *UK PECR Regulation 6 and DMCC Act 2024 cookie policy. Full inventory of strictly necessary storage and affiliate attribution. ICO ZC136598.* ### Organization: SoakawayCalculator.co.uk (UK Drainage & Stormwater Advisory Desk) | Field | Value | | :--- | :--- | | **Organization** | SoakawayCalculator.co.uk (UK Drainage & Stormwater Advisory Desk) | | **Official Website** | https://soakawaycalculator.co.uk | | **Overview** | UK civil engineering & statutory building control advisory desk for stormwater soakaway attenuation and drainage fields. | ### Entity: Soakaway Calculator UK | Property | Detail | | :--- | :--- | | **Type** | WebSite | | **Name** | Soakaway Calculator UK | ### Entity: Soakaway Calculator UK | Property | Detail | | :--- | :--- | | **Type** | WebApplication | | **Name** | Soakaway Calculator UK | ### Entity: UK BRE Digest 365 & Approved Document H3 Soil Infiltration & Rainfall Rates | Property | Detail | | :--- | :--- | | **Type** | Dataset | | **Name** | UK BRE Digest 365 & Approved Document H3 Soil Infiltration & Rainfall Rates | | **Description** | Standardised geotechnical percolation parameters (f, Vp) and 10-year / 30-year design storm depths across UK local planning authorities and soil classifications.... | ### Frequently Asked Questions (FAQ) **Q: How far must a soakaway be from a house foundation?** > A: Under Building Regulations Approved Document Part H3 (paragraph 3.25) and BS EN 752-4, a soakaway must be installed at least 5.0 metres away from any building foundation or habitable structure, and at least 2.5 metres from property boundary lines, to prevent ground destabilisation and structural subsidence. **Q: What is the standard BRE Digest 365 percolation test procedure?** > A: BRE Digest 365 requires excavating a trial pit of representative depth (typically 1.5m to 2.5m) and measuring water fall from 75% full to 25% full depth (t_75-25). The test must be filled and observed three consecutive times to simulate pre-saturated soil conditions. The soil infiltration rate f is calculated as the storage volume V_75-25 divided by effective internal surface area a_p50 multiplied by t_75-25. **Q: What happens if soil percolation test fails due to heavy clay?** > A: If the soil infiltration rate f is less than 1 x 10^-6 m/s (or Vp > 100 s/mm in BS 6297), a conventional soakaway is infeasible and will trigger Building Control failure. Under the statutory Part H3 surface water hierarchy, you are legally entitled to bypass infiltration and apply for a Section 106 connection to a surface water or combined public sewer, or discharge to an attenuation tank with a hydro-brake flow restrictor. ### Step-by-Step Procedure: How to Conduct a BRE Digest 365 Percolation Test for Building Control #### 1. Excavate Trial Pit Excavate a trial pit to the proposed soakaway invert depth (typically 0.3m wide by 1.0m to 2.0m long). Ensure the base is level and not smeared. #### 2. Fill with Water to Inflow Level Fill the trial pit rapidly with clean water to the proposed effective storage level (at least 300mm depth). #### 3. Measure 75% to 25% Drain Time Record the exact time in seconds taken for water to fall from 75% depth to 25% depth (t_75-25). #### 4. Repeat for 3 Consecutive Runs Refill the pit immediately and record times for Run 2 and Run 3 to verify soil infiltration under saturated conditions. UK PECR REGULATION 6 & DMCC ACT 2024 • ICO ZC136598 # Cookie & Local Storage Policy This policy outlines how **SoakawayCalculator.co.uk (UK Drainage & Stormwater Advisory Desk)** utilizes cookies, browser LocalStorage, and related digital identification technologies under Regulation 6 of the Privacy and Electronic Communications Regulations (PECR) 2003 and the Digital Markets, Competition and Consumers (DMCC) Act 2024. Last Updated: October 2026•ICO Registration: **ZC136598**•Policy Officer: [\[email protected\]](/cdn-cgi/l/email-protection#f2919d9f829e9b939c9197b2819d93999385938b91939e91879e93869d80dc919ddc8799) Loading your stored privacy and cookie preferences... ## 1\. Statutory Scope & Legal Framework Under UK PECR Regulation 6, storing information or gaining access to information stored in a user's terminal equipment (such as browser LocalStorage or HTTP cookies) is prohibited unless the subscriber or user: - Is provided with clear and comprehensive information regarding the purposes of the storage or access; and - Has given their informed consent, unless the storage is **strictly necessary** for the provision of an information society service requested by the subscriber or user (Regulation 6(4)). SoakawayCalculator.co.uk operates with a privacy-first engineering architecture. We do not use intrusive cross-site tracking cookies, canvas fingerprinting, or behavioural advertising beacons. ## 2\. Technical Cookie & Storage Inventory The following table provides a complete, exhaustive inventory of all cookies and LocalStorage keys utilized across SoakawayCalculator.co.uk: | Identifier / Name | Provider | Storage Type | Duration | Statutory Purpose & Justification | | --- | --- | --- | --- | --- | | soakaway\_cookie\_consent\_v1 | SoakawayCalculator.co.uk | LocalStorage | 12 Months | **Strictly Necessary (PECR Reg 6(4)):** Stores your consent preferences (necessary vs. affiliate attribution) so you are not prompted on every page turn. | | \_\_stripe\_mid / \_\_stripe\_sid | Stripe Payments UK Ltd | First-Party Cookie | 1 Year / 30 Mins | **Strictly Necessary:** Payment fraud prevention, bot mitigation, and PCI-DSS Level 1 compliance during checkout for Building Control calculation packs. | | awin / aw2024 / aw1294 / aw16582 / aw19707 | AWIN Ltd (Merchant Destination) | Third-Party Cookie (Destination Site) | 30 Days | **Affiliate Attribution:** Only set on third-party merchant domains (e.g. Travis Perkins, Screwfix, Toolstation, or Checkatrade) if you actively click out from our Bill of Quantities trade links. Identifies Publisher ID `3035391`. | ## 3\. Strictly Necessary Storage vs Commercial Attribution Strictly Necessary Storage (Exempt from Prior Consent) Under Regulation 6(4) of PECR, storage essential to provide the service requested by the user does not require prior consent. This includes preserving your entered roof catchment area, soil percolation value (_Vp_), and crate dimensions across tabs, as well as Stripe transaction verification. Awin Affiliate Network & ASA Disclosures When clicking on price check links for crates, geotextile membrane, or silt traps, outbound links route through AWIN Ltd (`awin1.com`, Publisher ID `3035391`). This attribution allows verified merchants to remunerate our engineering advisory desk at £0 additional cost to you. ## 4\. Managing & Clearing Browser Storage In addition to our interactive preference manager above, all modern web browsers allow you to inspect, block, or delete cookies and LocalStorage records: - **Google Chrome:** Settings → Privacy and security → Cookies and other site data. - **Mozilla Firefox:** Settings → Privacy & Security → Cookies and Site Data. - **Apple Safari:** Preferences → Privacy → Manage Website Data. - **Microsoft Edge:** Settings → Cookies and site permissions → Manage and delete cookies. Please note that blocking strictly necessary storage may prevent the interactive soakaway calculator from persisting your percolation test inputs or generating calculation certificates. ## 5\. Regulatory Oversight & Compliance Enquiries For technical queries regarding our cookie implementation or to submit a formal privacy notice inquiry: **Operator:** SoakawayCalculator.co.uk (UK Drainage & Stormwater Advisory Desk) **Data Controller ICO Reg:** ZC136598 **Email:** [\[email protected\]](/cdn-cgi/l/email-protection#bbd8d4d6cbd7d2dad5d8defbc8d4dad0daccdac2d8dad7d8ced7dacfd4c995d8d495ced0) [← Privacy Notice & UK GDPR](/privacy)[Terms of Engineering Use →](/terms) Operating Identity: SoakawayCalculator.co.uk (UK Drainage & Stormwater Advisory Desk) ## Related UK Statutory, Planning & Building Regulations Calculators (Verified Edge Mesh) - **[RSJCalculator.co.uk](https://rsjcalculator.co.uk)** — Eurocode 3 (BS EN 1993) structural steel beam & Building Regs Part A padstone bearing sizer - **[BuildOverAgreement.co.uk](https://buildoveragreement.co.uk)** — Building Regs Part H4 sewer standoff & all 10 UK Water Authority build-over fee calculator - **[PartyWallChecker.co.uk](https://partywallchecker.co.uk)** — Party Wall etc. Act 1996 s.1/s.2/s.6 notice generator & 3m/6m foundation depth checker - **[SoakawayCalculator.co.uk](https://soakawaycalculator.co.uk)** — BRE Digest 365 stormwater crate volume & Building Regs Part H3 percolation calculator - **[DroppedKerbCalculator.co.uk](https://droppedkerbcalculator.co.uk)** — Highways Act 1980 s.184 vehicle crossing council fees & 4.8m driveway depth checker - **[GardenOfficePower.co.uk](https://gardenofficepower.co.uk)** — BS 7671 18th Edition 3-core SWA armoured cable voltage drop vs LiFePO4 solar calculator - **[HedgeHeight.co.uk](https://hedgeheight.co.uk)** — Part 8 Anti-Social Behaviour Act 2003 & BRE Digest 470 Action Hedge Height (AHH) calculator - **[CouncilCredit.co.uk](https://councilcredit.co.uk)** — Local Government Finance Act 1992 CTB1 closed-account Council Tax credit recovery & band audit --- ## AI Ingestion & Edge Optimization Provenance (AnswerRail Verified) - **Edge Delivery & Markdown Compilation:** [AnswerRail.com](https://answerrail.com) — Layer-7 AI Crawler Content Negotiation, `/llms.txt` & Byte-0 Schema Compiler - **Dedicated AI Markdown Subdomain:** https://ai.soakawaycalculator.co.uk/ - **Cryptographic Ingestion Certificate:** https://answerrail.com/verify/soakawaycalculator.co.uk - **Live Crawler & Referral Telemetry:** https://answerrail.com/stats/soakawaycalculator.co.uk