Used Barth 30,000 Liter Diesel Tank / Heating Oil Tank for sale (30,148)

Condition: refurbished (used), Used storage tank made of steel according to DIN 6616/2, (with test certificate), double-walled, for above-ground storage, with saddle feet, 1 dome, optical leak warning device, limit value sensor and complete. Tank fitting consisting of: - Filling pipe 3" with TW closure - Dip tube 1" with dipstick - Suction combination Euroflex 3 (max. 150 l/hr.) - 1 vent nozzle 2" with vent cap. The container is equipped with the above fittings at the factory and is cleaned inside. Contents: 30,000 liters Diameter: 2,000 mm Length: approx. 9,9400 mm Weight: approx. 5,200 kg The container can be given a new coat of paint in your desired RAL color and optionally equipped with a ladder including an operating platform. A cost-effective delivery with your own truck is possible. Simply tell us the delivery location and you will immediately receive the exact freight costs. Iiodpfxevm Uvns Am Iea If you need any further information, just call us or send us an email. Trade-in and purchase of tanks/containers is possible, just contact us. Delivery time by arrangement! Tank und Apparate Barth GmbH Werner-von-Siemens-Str. 36 76694 Forst

Condition: as good as new (ex-display), Year of construction: 2011, Used storage tank made of steel according to EN 12285-1 (with test certificate) double-walled, for underground storage of fuel oil and diesel fuels, 1 dome (alternatively 2 domes possible). Capacity: 100,000 liters diameter: 2.900 mm length: approx. 15.750 mm Isdpfxsi Enxdo Am Ioia Weight: approx. 18,800 kg In addition, we can also equip our tanks with the following accessories: - Leakage monitoring with under- and overpressure leak detector - Dome shaft with shaft cover in walkable or traversable drive-over design - Partition walls (as multi-chamber tank) - Interior coatings (e.g. 2-component epoxy resin), partial or full linings - Content and level measuring devices as well as control and regulation technology - Electric tank heaters - Pumps for heating oil, diesel, biodiesel or gasoline - Dispensers for diesel, biodiesel and gasoline - with complete tank data acquisition on request - External tank insulation with PU foam Tank is cleaned inside and outside coating is overhauled and checked with 14 kV. A cost-effective delivery with our own truck is possible. Just tell us the delivery place, you will get the exact freight cost immediately. If you need any further information, just give us a call or send us an e-mail. Trade-in and purchase of tanks/containers is possible, just contact us. Delivery time after arrangement! We have such tanks of course also in the following sizes constantly in stock: - 10,000, 13,000, 16,000, 20,000, 25,000, 30,000, 40,000, 50,000, 60,000, 80,000 liters.

Condition: refurbished (used), Used storage tank made of steel according to DIN 6616/2, (with test certificate), double-walled, for above-ground storage, with saddle feet, 1 dome, optical leak warning device, limit value sensor and complete. Tank fitting consisting of: - Filling pipe 3" with TW closure - Dip tube 1" with dipstick - Suction combination Euroflex 3 (max. 150 l/hr.) - 1 vent nozzle 2" with vent cap. The container is equipped with the above fittings at the factory and is cleaned inside. Isdpfevm Uwxex Am Isia Contents: 40,000 liters Diameter: 2,500 mm Length: approx. 8,700 mm Weight: approx. 7,200 kg The container can be given a new coat of paint in your desired RAL color and optionally equipped with a ladder including operating platform. A cost-effective delivery with your own truck is possible. Simply tell us the delivery location and you will immediately receive the exact freight costs. If you need further information, just call us or send us an email. Trade-in and purchase of Tanks/containers are possible, just contact us. Delivery time by arrangement! Tank und Apparate Barth GmbH Werner-von-Siemens-Str. 36 76694 Forst

Condition: refurbished (used), Used storage tank made of steel according to DIN 6616/2, (with test certificate), double-walled, for above-ground storage, with saddle feet, 1 dome, optical leak warning device, limit value sensor and complete. Tank fitting consisting of: - Filling pipe 3" with TW closure - Dip tube 1" with dipstick - Suction combination Euroflex 3 (max. 150 l/hr.) - 1 vent nozzle 2" with vent cap. The container is equipped with the above fittings at the factory and is cleaned inside. Contents: 60,000 liters Diameter: 2,500 mm Ijdpevm Uxijfx Am Ioia Length: approx. 12,650 mm Weight: approx. 9,950 kg The container can be given a new coat of paint in your desired RAL color and optionally equipped with a ladder including an operating platform. A cost-effective delivery with your own truck is possible. Simply tell us the delivery location and you will immediately receive the exact freight costs. If you need any further information, just call us or send us an email. Trade-in and purchase of tanks/containers is possible, just contact us. Delivery time by arrangement! Tank und Apparate Barth GmbH Werner-von-Siemens-Str. 36 76694 Forst

Condition: refurbished (used), Used storage tank made of steel according to DIN 6616/2, (with test certificate) double-walled, for above ground storage, with saddle feet, 1 dome, optical leakage warning device, limit value transmitter and complete tank fitting consisting of: - Filling pipe 3" with TW-lock - dipstick pipe 1" with dipstick - Suction combination Euroflex 3 (max. 150 l/hour) - 1 vent pipe 2" with vent cap. Tank is equipped with the above fittings at the factory and is cleaned on the inside. Capacity: 50.000 liters diameter: 2.500 mm length: approx. 10.800 mm Weight: approx. 8.800 kg The tank can be repainted in the RAL color of your choice and optionally equipped with a ladder incl. operating platform. A cost-effective delivery with our own truck is possible. Just let us know the place of delivery and you will immediately receive the exact freight costs. If you need any further information, just give us a call or send us an e-mail. Trade-in and purchase of tanks/containers is possible, just contact us for this. Delivery time after arrangement! We have such tanks of course also in the following sizes constantly in stock: - 10,000, 13,000, 16,000, 20,000, 25,000, 30,000, 40,000, 50,000, 60,000, 80,000 liters. Isdpfx Amjhvmiws Ijia Tank and apparatus Barth Ltd. Werner-von-Siemens-Str. 36 76694 Forst

Condition: refurbished (used), Used storage tank made of steel according to DIN 6616/2, (with test certificate) double-walled, for above ground storage, with saddle feet, 1 dome, optical leakage warning device, limit value transmitter and complete tank fitting consisting of: - Filling pipe 3" with TW-lock - dipstick pipe 1" with dipstick - Suction combination suction pipe (1 1/2" or 2") - 1 vent pipe 2" with vent cap Tank is factory equipped with the above fittings and is cleaned inside. Capacity: 100.000 liters diameter: 2.900 mm length: approx. 15.750 mm Weight: approx. 18.800 kg The tank can be repainted in the RAL color of your choice and optionally equipped with a ladder incl. operating platform. A cost-effective delivery with our own truck is possible. Just let us know the place of delivery and you will immediately receive the exact freight costs. If you need any further information, just give us a call or send us an e-mail. Trade-in and purchase of tanks/containers is possible, just contact us for this. Delivery time after arrangement! We have such tanks of course also in the following sizes constantly in stock: - 10,000, 13,000, 16,000, 20,000, 25,000, 30,000, 40,000, 50,000, 60,000, 80,000 liters. Ijdpfxeguzhcs Am Ieia Tank and apparatus Barth Ltd. Werner-von-Siemens-Str. 36 76694 Forst

Condition: refurbished (used), Used storage tank made of steel according to DIN 6616/2, (with test certificate) double-walled, for above ground storage, with saddle feet, 1 dome, optical leakage warning device, limit value transmitter and complete tank fitting consisting of: - Filling pipe 3" with TW-lock Iisdpfx Amshvidgs Isa - dipstick pipe 1" with dipstick - Suction combination Euroflex 3 (max. 150 l/hour) - 1 vent pipe 2" with vent cap. Tank is equipped with the above fittings at the factory and is cleaned on the inside. Capacity: 80.000 liters diameter: 2.900 mm length: approx. 12.780 mm Weight: approx. 15.750 kg The tank can be repainted in the RAL color of your choice and optionally equipped with a ladder incl. operating platform. A cost-effective delivery with our own truck is possible. Just let us know the place of delivery and you will immediately receive the exact freight costs. If you need any further information, just give us a call or send us an e-mail. Trade-in and purchase of tanks/containers is possible, just contact us for this. Delivery time after arrangement! We have such tanks of course also in the following sizes constantly in stock: - 10,000, 13,000, 16,000, 20,000, 25,000, 30,000, 40,000, 50,000, 60,000, 100,000 liters. Tank and apparatus Barth Ltd. Werner-von-Siemens-Str. 36 76694 Forst Tel: 07251 / 915119 Fax: 07251 / 915175

Condition: refurbished (used), Used storage tank made of steel according to DIN 6616/2, (with test certificate), double-walled, for above-ground storage, with saddle feet, 1 dome, optical leak warning device, limit value sensor and complete. Tank fitting consisting of: - Filling pipe 3" with TW closure - Dip tube 1" with dipstick - Suction combination Euroflex 3 (max. 150 l/hr.) - 1 vent nozzle 2" with vent cap. The container is equipped with the above fittings at the factory and is cleaned inside. Contents: 25,000 liters Diameter: 2,000 mm Length: approx. 8,400 mm Weight: approx. 3,500 kg The container can be given a new coat of paint in your desired RAL color and optionally equipped with a ladder including operating platform. A cost-effective delivery with your own truck is possible. Simply tell us the delivery location and you will immediately receive the exact freight costs. Iijdpfx Amovm Uuws Isa If you need any further information, just call us or send us an email. Trade-in and purchase of Tanks/containers are possible, just contact us. Delivery time by arrangement! Tank und Apparate Barth GmbH Werner-von-Siemens-Str. 36 76694 Forst

Condition: refurbished (used), Used storage tank made of steel according to DIN 6616/2, (with test certificate), double-walled, for above-ground storage, with saddle feet, 1 dome, optical leak warning device, limit value sensor and complete. Tank fitting consisting of: - Filling pipe 3" with TW closure Ijdpfx Amjvm Urvs Isia - Dip tube 1" with dipstick - Suction combination Euroflex 3 (max. 150 l/hr.) - 1 vent nozzle 2" with vent cap. The container is equipped with the above fittings at the factory and is cleaned inside. Contents: 16,000 liters Diameter: 2,000 mm Length: approx. 5,475 mm Weight: approx. 2,500 kg The container can be given a new coat of paint in your desired RAL color and optionally equipped with a ladder including operating platform. A cost-effective delivery with your own truck is possible. Simply tell us the delivery location and you will immediately receive the exact freight costs. If you need further information, just call us or send us an email. Trade-in and purchase of Tanks/containers are possible, just contact us. Delivery time by arrangement! Tank und Apparate Barth GmbH Werner-von-Siemens-Str. 36 76694 Forst

Condition: used, Year of construction: 2023, tank capacity: 100,000 l, GENERAL Equipment: Venting/air release Design: Horizontal Year of manufacture: 2023 Notes: Manhole diameter approx. 600 mm; includes optical leak detector, tank fitting for heating oil, overfill prevention device, and ladder with working platform; External diameter: 2,900 mm Total length: 16,050 mm Heating/cooling: present Location: External storage Minden Technical documentation: Drawing, various documents Nameplate: Volume: 100,000 liters Product-contact material: Steel Condition: used Cylindrical length: 14,960 mm Last application: Heating oil Iiedoyckwqspfx Am Isa TANK Support type: Saddles welded on HEATING/COOLING JACKET Internal temperature control: Immersion heater EQUIPMENT Manhole / dome: on the tank

Year of construction: 2023, condition: new, Tank-& Umweltschutz Wozniack Specialist company according to the Water Resources Act Dear Sir or Madam, we offer a 10,000 liter double-walled storage tank for the storage of fuel oil. EN 12285-2 standard Nominal capacity 10 cbm new EN 12285-2 norm Color equipment Lacquer RAL ; 7035 Material steel in steel, material S235JRG2 Documentation Manufacturer's certificate/ nameplate piece 1 dipstick Piece 1 air vent Iijdpfok Dpv Asx Am Ija Piece 1 filling nozzle Piece 1 new limit switch Piece 1 new leak detection sight piece 1 ladder Piece 1 suction line tank dimensions approx. 5.300 mm diameter approx. 1.600 mm Weight approx. 2.000 kg Storage above ground Delivery time = September With kind regards from Warstein Tank and environmental protection Wozniack Enkerbruch 2 59581 Warstein

Year of construction: 2023, condition: new, Tank-& Umweltschutz Wozniack Specialist company according to the Water Resources Act Dear Sir or Madam, we offer a 50,000 liter double-walled storage tank for the storage of fuel oil. EN 12285-2 standard Delivery time immediately Nominal capacity 50 cbm new Color equipment lacquer RAL ; 7035 Material steel in steel, material S235JRG2 Documentation Manufacturer's certificate/ dipstick plate piece 1 dipstick Piece 1 air vent Piece 1 filling nozzle Piece 1 new limit switch Piece 1 new leak detection sight piece 1 ladder Piece 1 suction line Iodpfok Dpruox Am Ioia tank dimensions approx . 10900 mm diameter approx. 2.500 mm Weight approx. 9.000 kg Storage above ground Delivery time immediately With kind regards from Warstein Tank and environmental protection Wozniack Enkerbruch 2 59581 Warstein

Year of construction: 2000, condition: used, Tank-& Umweltschutz Wozniack Specialist company according to the Water Resources Act Dear Sir or Madam, we offer a 30,000 liter double-walled storage tank for the storage of diesel, with a new diesel dispenser incl data collection. Nominal capacity 30 cbm piece 1 used but overhauled, i.e. the tank is cleaned, refurbished, primed and painted Color equipment paint RAL ; but you can always bring your own color wishes. The plant is primed : Material steel in steel, material S235JRG2 Documents Manufacturer's certificate/test certificate according to DIN 6616 D/2 and type plate piece 1 dipstick Piece 1 venting spigot Piece 1 filling nozzle Piece 1 new limit switch Piece 1 new leak detection sight with filled up leak liquid Piece 1 ladder piece 1 suction line Shape cylindrical storage tank with feet/console tank mass length approx. 9.900 mm plus column 500mm diameter approx. 2.000 mm Weight approx. 4.500 kg Storage above ground HDMeco 80 system new . Diesel dispenser with tank data acquisition for 100 users Delivery capacity max. 77 l/min PC software Windows, also Windows 7, USB interface incl. USB stick, 4 m dispensing hose (optionally extendable), automatic dispensing gun with type approval, Electrical connection 230 V necessary accessories are included in the price of the equipment: HDMe-RS= 2 m return hose with connections (pressure relief of the pump) EH-115= 1 1/4" siphon angle valve with pressure relief, incl. connections Corrugated tube set: 1 1/4" consisting of: 240 mm corrugated tube with cathode protection, incl. gaskets and flange connection optional accessories: Transponder tag for contactless participant identification. ===== Of course, you can also help design your tank system! All our installations are extensively checked and inspected in our company by selected employees. We also offer an inexpensive delivery on request. The inspection of our plants is possible at any time. Further tank plants for above ground as well as underground storage are available in all sizes and are for sale on our premises. Could we convince you of our offer? If you have any questions or requests, just give us a call, one of our experienced employees will be happy to advise you. Isdoc Nk E Sopfx Am Ieia Top in the offer . Liquid fertilizer - AHL tank systems in the size of 10,000-100,000 liters. Water tank fire water tank in the offer . Price/ Shipping The price for the gas station is valid ex location Warstein , free loaded. Delivery can be offered at a reasonable price for an additional charge. Delivery time = immediately You will receive an invoice with VAT. In addition, we buy existing tank systems and can, as an approved specialist company according to the Water Resources Act (WHG) we can professionally empty, clean, dismantle and transport them away. With kind regards from Warstein Tank and environmental protection Wozniack Enkerbruch 2 59581 Warstein

Year of construction: 2022, condition: new, Tank-& Umweltschutz Wozniack Specialist company according to the Water Resources Act Dear Sir or Madam, we offer a 50,000 liter double-walled storage tank for the storage of heating oil. Nominal capacity 50 cbm new color equipment paint RAL ; 7035 Material steel in steel, material S235JRG2 Documentation Manufacturer's certificate/ dipstick plate piece 1 dipstick Piece 1 air vent Iijdpfsh Ukulex Am Iea Piece 1 filling nozzle Piece 1 new limit switch Piece 1 new leak detection sight piece 1 ladder Piece 1 suction line tank dimensions approx . 10900 mm diameter approx. 2.500 mm Weight approx. 9.000 kg Storage above ground Delivery time = September With kind regards from Warstein Tank and environmental protection Wozniack Enkerbruch 2 59581 Warstein

Year of construction: 2002, condition: used, Tank-& Umweltschutz Wozniack specialized company according to the Water Resources Act Dear Sir or Madam, we offer a 50,000 liter double-walled storage tank for the storage of fuel oil and diesel . Nominal capacity 50 cbm piece 1 used but overhauled, that means the tank is cleaned, refurbished, primed and painted Iedpfx Amjc Nkx Ue Ijia Color equipment lacquer RAL ; however, you can also bring in your own color wishes at any time. Material steel in steel, material S235JRG2 Documents Manufacturer's certificate/test certificate according to DIN 6616 D/2 and type plate Piece 1 dipstick Piece1 venting spigot Piece1 filling nozzle Piece 1 new limit switch Piece 1 new leak detection sight with filled up leak liquid Piece 1 ladder piece 1 suction line Shape cylindrical storage tank with feet/console tank dimensions length approx . 8.220 mm diameter approx. 2.900 mm Weight approx. 8.000 kg Storage above ground Of course you can also design your tank system! All our installations are checked and inspected in our company by selected employees. extensively controlled and checked. We offer an inexpensive delivery on request additionally. The inspection of our plants is possible at any time. Further tank plants for above ground as well as underground storage are in all sizes and are available for sale on our premises. All our tanks can be offered without diesel pump. Top in the offer . Liquid fuel - AHL tanks in the size of 10.000-100.000 liters. Water tank Loeschwassertank in the offer . Price/ Shipping The price for the tank station is valid ex location Warstein , free loaded. Delivery can be offered at a reasonable price for an additional charge. Delivery time = immediately You will receive an invoice with VAT. In addition, we buy existing tank installations and can, as an approved specialist company according to the Water Resources Act (WHG) we can professionally empty, clean, dismantle and transport them away. With kind regards from Warstein Tank and environmental protection Wozniack Enkerbruch 2 59581 Warstein

Year of construction: 1999, condition: used, Tank-& Umweltschutz Wozniack Specialist company according to the Water Resources Act Dear Sir or Madam, we offer a 10,000 liter double-walled storage tank for the storage of diesel as follows . Nominal capacity 10 cbm Piece 1 used but reconditioned, i.e. the tank is cleaned, refurbished, primed and painted Color equipment lacquer RAL ; . However, you can always bring your own color wishes. Material steel in steel, material S235JRG2 Documents Manufacturer's certificate/test certificate according to DIN 6616 D/2 and type plate All our tank units can also be offered without diesel pump . Top on offer . Liquid fertilizer - AHL tank plants in the size of 10,000-100,000 liters. Of course you can also design your tank plant! Ijdpfx Amec Nkw Is Ioia All our installations are extensively checked and inspected in our company by selected employees. We also offer an inexpensive delivery on request. The inspection of our plants is possible at any time. Further tank facilities for above ground as well as underground storage are available in all sizes and are for sale on our premises. Price/ Shipping The price for the filling station is valid from the location Warstein , free loaded. Delivery can be offered at a reasonable price for an additional charge. Delivery time = immediately You will receive an invoice with VAT. In addition, we buy existing tank systems and can, as an approved specialist company according to the Water Resources Act (WHG), professionally empty, clean, dismantle and transport them away. With kind regards from Warstein Tank Environmental Protection Wozniack

Year of construction: 2002, condition: refurbished (used), Tank-& Umweltschutz Wozniack Specialist company according to the Water Resources Act Dear Sir or Madam, we offer a 30,000 liter double-walled storage tank special size for the storage of diesel .fuel oil or other hazardous materials as follows . Nominal capacity 30 cbm piece 1 used but overhauled, that means the tank is cleaned, refurbished, primed and painted Color equipment lacquer RAL ; . However, you can always bring your own color requirements. Material steel in steel, material S235JRG2 Documents Manufacturer's certificate/test certificate according to DIN 6616 D/2 and nameplate Piece. 1 dipstick Piece. 1 venting nozzle Piece. 1 filling nozzle piece. 1 new limit switch piece. 1 new leakage detector with filled up leakage liquid piece. 1 conductor piece. 1 suction line Form . cylindrical storage tank with feet/console tank dimensions length ca 6.890 mm diameter approx. 2.500 mm weight approx. 5.600 kg Storage above ground All our tanks can also be offered with a diesel pump . Top in the offer . Liquid fertilizer - AHL tank plants in the size of 10,000-100,000 liters. Of course you can also design your tank plant! Iiodpfoiq Uwfox Am Ioa All our plants are controlled and checked in our company by selected employees extensively controlled and checked. We also offer an inexpensive delivery on request. The inspection of our plants is possible at any time. Further tank plants for above ground as well as underground storage are available in all sizes and are for sale on our premises. and are available for sale on our premises. Could we convince you of our offer Price/ Shipping The price for the gas station is valid ex location Warstein , free charged. A delivery can be offered at a reasonable price for an additional charge. Delivery time = from January 23 You will receive an invoice with VAT. In addition, we buy existing tank installations and can, as an approved specialist company according to the Water Resources Act (WHG) we can professionally empty, clean, dismantle and transport them away. With kind regards from Warstein Tank and environmental protection Wozniack Enkerbruch 2 59581 Warstein

Year of construction: 2022, condition: new, Tank-& Umweltschutz Wozniack Specialist company according to the Water Resources Act Dear Sir or Madam, we offer a 50,000 liter double-walled storage tank for the storage of heating oil. Nominal capacity 50 cbm new color equipment paint RAL ; 7035 Material steel in steel, material S235JRG2 Iiodpfxjh Ukupo Am Ioa Documentation Manufacturer's certificate/ dipstick plate piece 1 dipstick Piece 1 air vent Piece 1 filling nozzle Piece 1 new limit switch Piece 1 new leak detection sight piece 1 ladder Piece 1 suction line tank dimensions approx . 10900 mm diameter approx. 2.500 mm Weight approx. 9.000 kg Storage above ground Delivery time = September With kind regards from Warstein Tank and environmental protection Wozniack Enkerbruch 2 59581 Warstein

Condition: refurbished (used), functionality: fully functional, machine/vehicle number: ogs30-GA-130-40-MZ, tank capacity: 30,000 l, this is a 30m³ storage tank, it is pre-owned but overhauled and can be used to store diesel, it has also a diesel pump which is new Ijdpfx Amocybvzo Isia

Condition: refurbished (used), functionality: fully functional, machine/vehicle number: og30, tank capacity: 30,000 l, with this 30m³ storage tank you can store diesel or heating oil above ground Iodpfsb Hn Udex Am Ioia

Condition: good (used), functionality: fully functional, machine/vehicle number: og10, 10m³ tank for diesel, heating oil or HVO Iodpfxocyb Tws Am Ioia

Condition: refurbished (used), functionality: fully functional, machine/vehicle number: og5, 5m³ filling station for diesel or storage tank for heating oil or HVO (pump not included in this offer) Iedpfx Aocyb E Njm Ijia

Condition: new, Year of construction: 2026, functionality: fully functional, tank capacity: 10,000 l, storage tank for heating oil or diesel includiing an electronic level indicator Iiedpfx Amoi Azxts Isa

Condition: refurbished (used), functionality: fully functional, tank capacity: 20,000 l, 20000 litre steel unit to store heating oil or diesel, it's used but refurbished. Iodpfx Aji Arumom Ieia

Condition: new, Year of construction: 2026, functionality: fully functional, tank capacity: 50,000 l, Heating Oil Tank – Storage Container – Diesel Tank – Tank System – Steel Tank Brand new – with 50,000-liter capacity – built to EN 12285-2 – Class B (replacement for DIN 6616), above-ground, double-walled, including test certificate, suitable for installation in areas of seismic zone 0. Ijdpfx Amei A Hz Ao Isia The container is equipped with two saddle supports, a manhole with dome cover, and comes with the following fittings: • 1 fill pipe with TW cap (filling cap) and dip tube • 1 gauging pipe with dipstick and dipstick cap • 1 vent pipe with ventilation hood • 1 brand-new overfill prevention device with type approval (AIII) • 1 ladder and 1 spare socket for withdrawal purposes • 1 optical leak detection device with type approval and leak detection liquid The container is externally sandblasted, primed, and painted white / RAL 9016 (sample image – other RAL colors available on request). L = approx. 10.70 m – D = 2.50 m – Weight approx. 9.5 t – ex works, free loaded General Information: You will receive an invoice with VAT indicated. The purchase is subject to our general terms and conditions. Further tank systems (new and used) as well as rental units are also available! Additionally, we purchase existing tank systems and are qualified (certified specialist company according to § 62 of the German Water Resources Act) to professionally empty, clean, dismantle, and remove such systems.