Schedule 3 (exempt facilities: descriptions and conditions)
This section has no associated Explanatory Memorandum
13. In Schedule 3, in Part 3, after paragraph 3 insert—
“Open-loop ground source heating and cooling systems
4.—(1) For the purpose of paragraph 5(a)(i) of Schedule 2, the description is the discharge of water to groundwater from a heating or cooling system to which sub-paragraph (3) applies with altered temperature.
(2) For the purpose of paragraph 5(a)(ii) of that Schedule, the conditions in relation to a groundwater activity of that description are—
(a)that nothing should be added to water discharged from the system;
(b)that the temperature of water discharged from the system—
(i)subject to sub-paragraph (ii), must not exceed 25o C, and
(ii)must not vary by more than 10o C compared to that in the aquifer from which it was abstracted;
(c)that the system must not be on a known contaminated site or have had a previous contaminative use;
(d)that water from the system must not be discharged less than 50 metres from a watercourse or groundwater-fed wetland;
(e)that water from the system must not be discharged within—
(i)50 metres of a point at which water is abstracted from underground strata, or
(ii)a zone defined by a 50-day travel time for groundwater to reach a groundwater abstraction point that is used to supply water for domestic or food production purposes;
(f)that the discharge of water from the system must be to the same aquifer as that from which it was abstracted;
(g)that water within the system must not be used for any other purpose.
(3) This sub-paragraph applies to a system—
(a)that involves—
(i)the abstraction of groundwater to obtain heating or (as the case may be) cooling, and
(ii)the subsequent discharge of that water; and
(b)that is—
(i)a cooled aquifer system with a volume of less than 1500 cubic metres per day;
(ii)a balanced system with a volume of less than 430 cubic metres per day; or
(iii)a heated aquifer system with a volume of less than 215 cubic metres per day.
(4) In this paragraph—
“balanced system” means a system used for both heating and cooling and where in a 5-year period the ratio of the discharge water temperature to the abstracted water temperature is within the range 0.8 to 1.2;
“cooled aquifer system” means a system used for both heating and cooling and where in a 5-year period the ratio of the discharge water temperature to the abstracted water temperature is less than 0.8;
“groundwater-fed wetland” means a terrestrial ecosystem directly depending on a body of groundwater (within the meaning of the Water Framework Directive) and includes—
(a)
a European site (which has the meaning given in regulation 8 of the Conservation of Habitats and Species Regulations 2010());
(b)
a site of special scientific interest (which has the meaning given in section 52(1) of the Wildlife and Countryside Act 1981());
“heated aquifer system” means a system used for both heating and cooling and where in a 5-year period the ratio of the discharge water temperature to the abstracted water temperature exceeds 1.2.”.