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The Sludge (Use in Agriculture) Regulations 1989

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Changes over time for: The Sludge (Use in Agriculture) Regulations 1989 (Schedules only)

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Version Superseded: 01/04/1996

Alternative versions:

Status:

Point in time view as at 01/09/1989.

Changes to legislation:

There are currently no known outstanding effects for the The Sludge (Use in Agriculture) Regulations 1989. Help about Changes to Legislation

Regulation 3

SCHEDULE 1E+W+STESTING OF SLUDGE

1.  Every sludge producer shall ensure that sludge produced by him and supplied for the purpose of use in agriculture is tested in accordance with this Schedule as soon as reasonably practicable after the operative date, and thereafter at intervals of not more than six months, and in any event where changes occur in the characteristics of the waste water being treated.E+W+S

Commencement Information

I1Sch. 1 para. 1 in force at 1.9.1989, see reg. 1(1)

2.  Representative samples of sludge intended to be used on agricultural land shall be taken after processing, but before delivery to the user.E+W+S

Commencement Information

I2Sch. 1 para. 2 in force at 1.9.1989, see reg. 1(1)

3.  Each sample shall be analysed so as to determine–E+W+S

(a)the pH value thereof;

(b)the percentage content of dry matter, organic matter, nitrogen and phosphorus; and

(c)the concentration in milligrams per kilogram of dry matter of–

(i)chromium;

(ii)the elements listed in column 1 of the sludge table below.

Commencement Information

I3Sch. 1 para. 3 in force at 1.9.1989, see reg. 1(1)

4.  The average annual rate of addition referred to in regulation 3(4) shall be ascertained for each of the elements in the sludge table by taking the average amount of that element in the sludge used on that land in the period of ten years ending on the date of such use.E+W+S

SLUDGE TABLE

(1)(2)(3)
ElementKilograms per hectare per yearLimit of detection (mg/kg of dry matter)
Zinc1550
Copper7.525
Nickel310
Cadmium0.151
Lead1525
Mercury0.10.1

Commencement Information

I4Sch. 1 para. 4 in force at 1.9.1989, see reg. 1(1)

5.  The analysis requisite to ascertain the concentration of metals referred to in paragraph 3(c) above shall be carried out following strong acid digestion; the reference method of analysis shall be that of atomic absorption spectrometry, and the limit of detection for each metal shall not exceed the appropriate limit value specified in column (3) of the sludge table or, in the case of chromium, 25 milligrams per kilogram of dry matter.E+W+S

Commencement Information

I5Sch. 1 para. 5 in force at 1.9.1989, see reg. 1(1)

Regulation 3

SCHEDULE 2E+W+STESTING OF AGRICULTURAL SOIL

1.  The sludge producer shall ensure that agricultural soil is tested or assessed in accordance with this Schedule.E+W+S

Commencement Information

I6Sch. 2 para. 1 in force at 1.9.1989, see reg. 1(1)

2.—(1) Where–E+W+S

(a)sludge has been used on an agricultural unit before the operative date; and

(b)adequate scientific evidence is available as to the characteristics of the soil thereof, and the sludge used thereon, before that date;

an assessment shall be made as soon as possible after the operative date of the pH value of the soil as at that date, and the probable concentrations in the soil as at that date of–

(i)chromium;

(ii)the elements listed in column 1 of the soil table;

and the soil shall be tested not later than 31st December 1991.

(2) Subject to paragraph (1) above, the soil of agricultural land shall be tested–

(a)where sludge is to be used on that land for the first time after the operative date;

(b)as soon as may be after the twentieth anniversary of the date when the soil was last tested in accordance with this Schedule; or

(c)where the sludge producer is so requested in writing by the occupier of the land or by the Secretary of State, and not less than five years have elapsed since the soil was last tested in accordance with this Schedule.

Commencement Information

I7Sch. 2 para. 2 in force at 1.9.1989, see reg. 1(1)

3.  For each agricultural unit on which sludge is to be used, a representative sample of soil shall be obtained by mixing together 25 separate core samples, each taken to the depth of the soil or 25 centimetres, whichever is the lesser depth.E+W+S

Commencement Information

I8Sch. 2 para. 3 in force at 1.9.1989, see reg. 1(1)

4.  Each representative sample shall be analysed so as to ascertain–E+W+S

(a)the pH value of the sample;

(b)the concentration in that sample of the following metals–

(i)chromium;

(ii)the elements set out in the soil table below.

Commencement Information

I9Sch. 2 para. 4 in force at 1.9.1989, see reg. 1(1)

5.  For the purposes of regulation 3(4), the specified limit of concentration of elements in any representative sample, expressed in milligrams per kilogram of dry matter, is set out in the soil table below.E+W+S

SOIL TABLE

(1)(2)
ElementLimit According to pH of soil
5.0<5.55.5<6.06.0–7.0>7.0
Zinc200250300450
Copper80100135200
Nickel506075110
For pH 5.0 and above
Lead300
Cadmium3
Mercury1

Commencement Information

I10Sch. 2 para. 5 in force at 1.9.1989, see reg. 1(1)

6.  The analysis requisite to ascertain the concentration of metals referred to in paragraph 4(b) above shall be carried out following strong acid digestion; the reference method of analysis shall be that of atomic absorption spectrometry, and the limit of detection for each metal shall not exceed 10% of the appropriate limit value specified in the soil table or, in the case of chromium, 25 milligrams per kilogram of dry matter.E+W+S

Commencement Information

I11Sch. 2 para. 6 in force at 1.9.1989, see reg. 1(1)

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