The Environmental Permitting (England and Wales) Regulations 2016

SECTION 9 E+W Tables and summation rules in this Part

Table 4 E+W

25.  The Table 4 referred to in Sections 2 and 3 of this Part—

Table 4

Radioactive material and accumulated radioactive waste: values of maximum quantities

Substance or article	Maximum quantity of radionuclides for each substance or article	Maximum quantity of radionuclides:
		(a) on any premises in items which satisfy the limit in column 2, or
		(b) in mobile radioactive apparatus held by a person
A sealed source of a type not described in any other row of this Table	4 x 106 Bq	2 x 108 Bq
A Class A gaseous tritium light device	2 x 1010 Bq	5 x 1012 Bq
A Class B gaseous tritium light device	1 x 1012 Bq	3 x 1013 Bq
A Class C gaseous tritium light device	1 x 1012 Bq	No limit
Any sealed source which is solely radioactive material or radioactive waste because it contains tritium	2 x 1010 Bq	5 x 1012 Bq
A tritium foil source	2 x 1010 Bq	5 x 1012 Bq
A smoke detector affixed to premises	4 x 106 Bq	No limit
An electrodeposited source	6 x 108 Bq Ni-63 or 2 x 108 Bq Fe-55	6 x 1011 Bq
A luminised article	8 x 107 Bq Pm-147 or 4 x 109 Bq H-3	4 x 1010 Bq Pm-147 or 2 x 1011 Bq H-3
A Ba-137m eluting source	4 x 104 Bq Cs-137+	4 x 105 Bq Cs-137+
A substance or article which is or contains magnesium alloy or thoriated tungsten in which the thorium concentration does not exceed 4% by mass	No limit	No limit
A uranium or thorium compound	Up to a total of 5kg of uranium and thorium	Up to a total of 5kg of uranium and thorium
A substance or article (other than a sealed source) which is intended for use for, used for, or arises from medical or veterinary diagnosis or treatment or clinical or veterinary trials	1 x 109 Bq Tc-99m	1 x 109 Bq Tc-99m
	and	and
	[F1 2 x 108 Bq of all other radionuclides, (no more than 1 x 108 Bq of which is contained in radioactive material)]	2 x 108 Bq of all other radionuclides, (no more than 1 x 108 Bq of which is contained in radioactive material)

Textual Amendments

F1 Words in Sch. 23 Pt. 6 para. 25 Table 4 substituted (2.5.2018) by The Environmental Permitting (England and Wales) (Amendment) (No. 2) Regulations 2018 (S.I. 2018/428), reg. 1, Sch. para. 32

[F2 Table 4A E+W

25A.— (1) The Table 4A referred to in Sections 2, 5 and 6 of this Part is—

Table 4A

NORM waste concentrations and maximum disposal quantities

Radionuclide	Type 1 NORM concentration (Bq/g)	Type 1 NORM total activity for landfill (GBq/year)	Type 1 NORM total activity for incineration (MBq/year)	Type 2 NORM concentration (Bq/g)
U-238sec	5	50	100	10
U238+	5	50	100	10
U-234	5	50	100	10
Th-230	5	50	100	10
Ra-226+	5	50	100	10
Pb-210+	100	1000	100	200
Po-210	100	1000	100	200
U-235sec	5	50	100	10
U-235+	5	50	100	10
Pa-231	5	50	100	10
Ac-227+	5	50	100	10
Th-232sec	5	50	100	10
Th-232	5	50	100	10
Ra-228+	5	50	100	10
Th-228+	5	50	100	10

(2) The summation rule in respect of columns 2 and 5 of Table 4A is the sum of the quotients A/B where—

(a) “A” means the concentration of each radionuclide listed in column 1 of Table 4A that is present in the substance or article; and

(b) “B” means the concentration of that radionuclide specified in column 2 or 5 (as appropriate) of Table 4A.

(3) The summation rule in respect of columns 3 and 4 of Table 4A is the sum of the quotients C/D where—

(a) “C” means the quantity of each radionuclide listed in column 1 of Table 4A that is present in the substance or article; and

(b) “D” means the quantity of that radionuclide specified in column 3 or 4 (as appropriate) of Table 4A.]

Textual Amendments

F2 Sch. 23 Pt. 6 para. 25A inserted (2.5.2018) by The Environmental Permitting (England and Wales) (Amendment) (No. 2) Regulations 2018 (S.I. 2018/428), reg. 1, Sch. para. 33

Table 5 E+W

26.—(1) The Table 5 referred to in Sections 2 and 4 of this Part is—

Table 5

Radionuclides: values of quantities and concentrations

Radionuclides	Maximum quantity of radioactivity (Bq) on any premises	Maximum concentration (Bq/g)
H-3	109	106
Be-7	107	103
C-14	107	104
O-15	109	102
F-18	106	10
Na-22	106	10
Na-24	105	10
Si-31	106	103
P-32	105	103
P-33	108	105
S-35	108	105
Cl-36	106	104
Cl-38	105	10
Ar-37	108	106
Ar-41	109	102
K-42	106	102
K-43	106	10
Ca-45	107	104
Ca-47	106	10
Sc-46	106	10
Sc-47	106	102
Sc-48	105	10
V-48	105	10
Cr-51	107	103
Mn-51	105	10
Mn-52	105	10
Mn-52m	105	10
Mn-53	109	104
Mn-54	106	10
Mn-56	105	10
Fe-52	106	10
Fe-55	106	104
Fe-59	106	10
Co-55	106	10
Co-56	105	10
Co-57	106	102
Co-58	106	10
Co-58m	107	104
Co-60	105	10
Co-60m	106	103
Co-61	106	102
Co-62m	105	10
Ni-59	108	104
Ni-63	108	105
Ni-65	106	10
Cu-64	106	102
Zn-65	106	10
Zn-69	106	104
Zn-69m	106	102
Ga-72	105	10
Ge-71	108	104
As-73	107	103
As-74	106	10
As-76	105	102
As-77	106	103
Se-75	106	102
Br-82	106	10
Kr-74	109	102
Kr-76	109	102
Kr-77	109	102
Kr-79	105	103
Kr-81	107	104
Kr-83m	1012	105
Kr-85	104	105
Kr-85m	1010	103
Kr-87	109	102
Kr-88	109	102
Rb-86	105	102
Sr-85	106	102
Sr-85m	107	102
Sr-87m	106	102
Sr-89	106	103
Sr-90+	104	102
Sr-91	105	10
Sr-92	106	10
Y-90	105	103
Y-91	106	103
Y-91m	106	102
Y-92	105	102
Y-93	105	102
Zr-93+	107	103
Zr-95	106	10
Zr-97+	105	10
Nb-93m	107	104
Nb-94	106	10
Nb-95	106	10
Nb-97	106	10
Nb-98	105	10
Mo-90	106	10
Mo-93	108	103
Mo-99	106	102
Mo-101	106	10
Tc-96	106	10
Tc-96m	107	103
Tc-97	108	103
Tc-97m	107	103
Tc-99	107	104
Tc-99m	107	102
Ru-97	107	102
Ru-103	106	102
Ru-105	106	10
Ru-106+	105	102
Rh-103m	108	104
Rh-105	107	102
Pd-103	108	103
Pd-109	106	103
Ag-105	106	102
Ag-108m+	106	10
Ag-110m	106	10
Ag-111	106	103
Cd-109	106	104
Cd-115	106	102
Cd-115m	106	103
In-111	106	102
In-113m	106	102
In-114m	106	102
In-115m	106	102
Sn-113	107	103
Sn-125	105	102
Sb-122	104	102
Sb-124	106	10
Sb-125	106	102
Te-123m	107	102
Te-125m	107	103
Te-127	106	103
Te-127m	107	103
Te-129	106	102
Te-129m	106	103
Te-131	105	102
Te-131m	106	10
Te-132	107	102
Te-133	105	10
Te-133m	105	10
Te-134	106	10
I-123	107	102
I-125	106	103
I-126	106	102
I-129	105	102
I-130	106	10
I-131	106	102
I-132	105	10
I-133	106	10
I-134	105	10
I-135	106	10
Xe-131m	104	104
Xe-133	104	103
Xe-135	1010	103
Cs-129	105	102
Cs-131	106	103
Cs-132	105	10
Cs-134m	105	103
Cs-134	104	10
Cs-135	107	104
Cs-136	105	10
Cs-137+	104	10
Cs-138	104	10
Ba-131	106	102
Ba-140+	105	10
La-140	105	10
Ce-139	106	102
Ce-141	107	102
Ce-143	106	102
Ce-144+	105	102
Pr-142	105	102
Pr-143	106	104
Nd-147	106	102
Nd-149	106	102
Pm-147	107	104
Pm-149	106	103
Sm-151	108	104
Sm-153	106	102
Eu-152	106	10
Eu-152m	106	102
Eu-154	106	10
Eu-155	107	102
Gd-153	107	102
Gd-159	106	103
Tb-160	106	10
Dy-165	106	103
Dy-166	106	103
Ho-166	105	103
Er-169	107	104
Er-171	106	102
Tm-170	106	103
Tm-171	108	104
Yb-175	107	103
Lu-177	107	103
Hf-181	106	10
Ta-182	104	10
W-181	107	103
W-185	107	104
W-187	106	102
Re-186	106	103
Re-188	105	102
Os-185	106	10
Os-191	107	102
Os-191m	107	103
Os-193	106	102
Ir-190	106	10
Ir-192	104	10
Ir-194	105	102
Pt-191	106	102
Pt-193m	107	103
Pt-197	106	103
Pt-197m	106	102
Au-198	106	102
Au-199	106	102
Hg-197	107	102
Hg-197m	106	102
Hg-203	105	102
Tl-200	106	10
Tl-201	106	102
Tl-202	106	102
Tl-204	104	104
Pb-203	106	102
Pb-210+	104	10
Pb-212+	105	10
Bi-206	105	10
Bi-207	106	10
Bi-210	106	103
Bi-212+	105	10
Po-203	106	10
Po-205	106	10
Po-207	106	10
Po-210	104	10
At-211	107	103
Rn-220+	107	104
Rn-222+	108	10
Ra-223+	105	102
Ra-224+	105	10
Ra-225	105	102
Ra-226+	104	10
Ra-227	106	102
Ra-228+	105	10
Ac-228	106	10
Th-226+	107	103
Th-227	104	10
Th-228+	104	1
Th-229+	103	1
Th-230	104	1
Th-231	107	103
Th-232 sec	103	1
Th-234+	105	103
Pa-230	106	10
Pa-231	103	1
Pa-233	107	102
U-230+	105	10
U-231	107	102
U-232+	103	1
U-233	104	10
U-234	104	10
U-235+	104	10
U-236	104	10
U-237	106	102
U-238+	104	10
U-238 sec	103	1
U-239	106	102
U-240	107	103
U-240+	106	10
Np-237+	103	1
Np-239	107	102
Np-240	106	10
Pu-234	107	102
Pu-235	107	102
Pu-236	104	10
Pu-237	107	103
Pu-238	104	1
Pu-239	104	1
Pu-240	103	1
Pu-241	105	102
Pu-242	104	1
Pu-243	107	103
Pu-244	104	1
Am-241	104	1
Am-242	106	103
Am-242m+	104	1
Am-243+	103	1
Cm-242	105	102
Cm-243	104	1
Cm-244	104	10
Cm-245	103	1
Cm-246	103	1
Cm-247	104	1
Cm-248	103	1
Bk-249	106	103
Cf-246	106	103
Cf-248	104	10
Cf-249	103	1
Cf-250	104	10
Cf-251	103	1
Cf-252	104	10
Cf-253	105	102
Cf-254	103	1
Es-253	105	102
Es-254	104	10
Es-254m	106	102
Fm-254	107	104
Fm-255	106	103
Any other radionuclide that is:	103, or the quantity given in respect of that radionuclide in the [F3 Public Health England] publication ‘Exempt Concentrations and Quantities for Radionuclides not Included in the European Basic Safety Standards Directive’M1 .	1, or the concentration given in respect of that radionuclide in the publication referenced in column 2.
(a) not of natural terrestrial or cosmic origin, or
(b) listed in Table 2 in this Schedule.

(2) The summation rule in respect of column 2 of Table 5 is the sum of the quotients A/B where—

(a) “A” means the quantity of each radionuclide listed in column 1 of Table 5 that is present in the material and waste, and

(b) “B” means the quantity of that radionuclide specified in column 2 of Table 5.

(3) The summation rule in respect of [F4 column 3] of Table 5 is the sum of the quotients C/D where—

(a) “C” means the concentration of each radionuclide listed in column 1 of Table 5 that is present in the material and waste, and

(b) “D” means the concentration of that radionuclide specified in column 3 of Table 5.

Textual Amendments

F3 Words in Sch. 23 Pt. 6 para. 26(1) Table 5 substituted (2.5.2018) by The Environmental Permitting (England and Wales) (Amendment) (No. 2) Regulations 2018 (S.I. 2018/428), reg. 1, Sch. para. 34(a)

F4 Words in Sch. 23 Pt. 6 para. 26(3) substituted (2.5.2018) by The Environmental Permitting (England and Wales) (Amendment) (No. 2) Regulations 2018 (S.I. 2018/428), reg. 1, Sch. para. 34(b)

Marginal Citations

M1 Published by the National Radiological Protection Board, Chilton, Oxfordshire, 1999, NRPB-R306 (ISBN 978-0-85951-429-3). A copy may be obtained from the CRCE Directors' Office, Centre for Chemical, Radiation and Environmental Hazards, Public Health England, Chilton, Didcot, OX11 0RQ.

Table 6 E+W

27.  The Table 6 referred to in Sections 5 and 7 of this Part is—

Table 6

Radioactive waste: values of quantities and concentrations

Radioactive waste	Maximum concentration of radionuclides	Maximum quantity of radioactivity to be disposed of in the period stated
Solid radioactive waste, with no single item > 4 x 104 Bq	4 x 105 Bq for the sum of all radionuclides per 0.1m3	2 x 108 Bq/year
Solid radioactive waste containing tritium and C-14 only, with no single item > 4 x 105 Bq	4 x 106 Bq of tritium and C-14 per 0.1m3	2 x 109 Bq/year
Individual sealed sources	2 x 105 Bq for the sum of all radionuclides per 0.1m3	1 x 107 Bq/year
Individual sealed sources which are solely radioactive waste because they contain tritium	2 x 1010 Bq of tritium per 0.1m3	1 x 1013 Bq/year
Luminised articles with no single item containing > 8 x 107 Bq of Pm-147 or > 4 x 109 of tritium	8 x 107 Bq per 0.1m3 of Pm-147	2 x 109 Bq/year of Pm-147
	or 4 x 109 Bq per 0.1m3 for tritium	or 1 x 1011 Bq/year of tritium
Solid radioactive waste which consists of magnesium alloy, thoriated tungsten or dross from hardener alloy in which the thorium concentration does not exceed 4% by mass	No limit	No limit
Solid uranium or thorium compound	No limit	0.5kg of uranium or thorium per week
Aqueous liquid uranium or thorium compound	No limit	0.5kg of uranium or thorium per year
Aqueous liquid human excreta	No limit	1 x 1010 Bq/year of Tc-99m
		and
		5 x 109 Bq/year for the sum of all other radionuclides

Table 7 E+W

28.—(1) The Table 7 referred to in Section 7 of this Part is—

Table 7

Aqueous radioactive waste values

Radionuclide	Concentration in Bq/ litre	Maximum annual quantity of radionuclides to a relevant sewer (Bq/ year)	Maximum annual quantity of radionuclides directly into a relevant river or the sea (Bq/ year)
H-3	103	1010	1010
Be-7	1	107	107
C-14	0.1	106	106
F-18	0.1	106	106
Na-22	1	106	107
Na-24	1	107	107
Si-31	10	108	108
P-32	0.001	104	104
P-33	0.001	104	104
S-35	10	3 x 107	108
Cl-36	10	107	108
Cl-38	0.1	106	106
K-42	0.01	105	105
K-43	0.01	105	105
Ca-45	1	107	107
Ca-47	0.1	106	106
Sc-46	0.001	104	104
Sc-47	0.01	105	105
Sc-48	0.001	104	104
V-48	1	107	107
Cr-51	10	108	108
Mn-51	0.001	104	104
Mn-52	0.001	104	104
Mn-52m	0.001	104	104
Mn-53	1	107	107
Mn-54	0.01	105	105
Mn-56	0.001	104	104
Fe-52	0.01	105	105
Fe-55	1	107	107
Fe-59	0.01	105	105
Co-55	0.001	104	104
Co-56	0.001	104	104
Co-57	0.1	106	106
Co-58	0.1	106	106
Co-58m	1	107	107
Co-60	0.01	105	105
Co-60m	1	107	107
Co-61	0.1	106	106
Co-62m	0.001	104	104
Ni-59	1	107	107
Ni-63	102	109	109
Ni-65	0.01	105	105
Cu-64	0.1	106	106
Zn-65	0.1	3 x 105	106
Zn-69	10	108	108
Zn-69m	0.1	106	106
Ga-67	0.1	106	106
Ga-72	0.001	104	104
Ge-71	1	107	107
As-73	10	108	108
As-74	1	107	107
As-76	1	107	107
As-77	1	107	107
Se-75	0.1	3 x 105	106
Br-82	0.1	106	106
Rb-86	0.1	106	106
Sr-85	0.1	106	106
Sr-85m	0.1	106	106
Sr-87m	0.1	106	106
Sr-89	1	107	107
Sr-90+	0.1	3 x 105	106
Sr-91	0.01	105	105
Sr-92	0.01	105	105
Y-90	1	107	107
Y-91	1	107	107
Y-91m	0.01	105	105
Y-92	0.1	106	106
Y-93	0.1	106	106
Zr-93	10	108	108
Zr-95+	0.001	104	104
Zr-97	0.01	105	105
Nb-93m	10	108	108
Nb-94	0.1	106	106
Nb-95	1	107	107
Nb-97	1	107	107
Nb-98	0.1	106	106
Mo-90	0.1	106	106
Mo-93	1	107	107
Mo-99	0.1	106	106
Mo-101	0.01	105	105
Tc-96	1	107	107
Tc-96m	102	109	109
Tc-97	102	109	109
Tc-97m	10	108	108
Tc-99	10	107	108
Tc-99m	10	3 x 107	108
Ru-97	0.01	105	105
Ru-103	0.01	105	105
Ru-105	0.01	105	105
Ru-106+	0.1	106	106
Rh-103m	10	108	108
Rh-105	1	107	107
Pd-103	0.1	106	106
Pd-109	0.1	106	106
Ag-105	1	107	107
Ag-108m	0.1	106	106
Ag-110m	0.1	106	106
Ag-111	10	108	108
Cd-109	1	107	107
Cd-115	0.1	106	106
Cd-115m	1	107	107
In-111	0.01	105	105
In-113m	0.01	105	105
In-114m	0.01	105	105
In-115m	0.01	105	105
Sn-113	0.1	106	106
Sn-125	0.01	105	105
Sb-122	0.1	106	106
Sb-124	0.1	106	106
Sb-125	1	107	107
Te-123m	1	107	107
Te-125m	1	107	107
Te-127	10	108	108
Te-127m	1	107	107
Te-129	10	108	108
Te-129m	1	107	107
Te-131	1	107	107
Te-131m	1	107	107
Te-132	0.1	106	106
Te-133	1	107	107
Te-133m	1	107	107
Te-134	1	107	107
I-123	1	107	107
I-125	1	107	107
I-126	0.1	106	106
I-129	0.1	106	106
I-130	0.1	106	106
I-131	0.1	106	106
I-132	0.1	106	106
I-133	0.1	106	106
I-134	0.1	106	106
I-135	0.1	106	106
Cs-129	0.01	105	105
Cs-131	0.1	106	106
Cs-132	0.01	105	105
Cs-134	0.01	105	105
Cs-134m	0.1	106	106
Cs-135	0.1	106	106
Cs-136	0.001	104	104
Cs-137+	0.01	105	105
Cs-138	0.001	104	104
Ba-131	0.1	106	106
Ba-140	0.1	106	106
La-140	0.001	104	104
Ce-139	0.1	106	106
Ce-141	0.1	106	106
Ce-143	0.01	105	105
Ce-144	0.1	106	106
Pr-142	0.1	106	106
Pr-143	10	108	108
Nd-147	0.01	105	105
Nd-149	0.01	105	105
Pm-147	10	108	108
Pm-149	1	107	107
Sm-151	102	109	109
Sm-153	0.1	106	106
Eu-152	0.01	105	105
Eu-152m	0.01	105	105
Eu-154	0.01	105	105
Eu-155	0.1	106	106
Gd-153	0.1	106	106
Gd-159	0.1	106	106
Tb-160	0.01	105	105
Dy-165	0.1	106	106
Dy-166	0.1	106	106
Ho-166	0.1	106	106
Er-169	10	108	108
Er-171	0.01	105	105
Tm-170	1	107	107
Tm-171	10	108	108
Yb-175	0.1	106	106
Lu-177	0.1	106	106
Hf-181	0.01	105	105
Ta-182	0.001	104	104
W-181	0.1	106	106
W-185	1	107	107
W-187	0.01	105	105
Re-186	1	107	107
Re-188	1	107	107
Os-185	0.01	105	105
Os-191	0.1	106	106
Os-191m	1	107	107
Os-193	0.1	106	106
Ir-190	0.001	104	104
Ir-192	0.01	105	105
Ir-194	0.1	106	106
Pt-191	0.01	105	105
Pt-193m	1	107	107
Pt-197	0.1	106	106
Pt-197m	0.1	106	106
Au-198	1	107	107
Au-199	1	107	107
Hg-197	1	107	107
Hg-197m	0.1	106	106
Hg-203	0.1	106	106
Tl-200	0.01	105	105
Tl-201	0.1	106	106
Tl-202	0.01	105	105
Tl-204	0.1	106	106
Pb-203	0.01	105	105
Pb-210	0.001	104	104
Pb-212	0.1	106	106
Bi-206	0.01	105	105
Bi-207	0.1	106	106
Bi-210	10	108	108
Bi-212	1	107	107
Po-203	0.001	104	104
Po-205	0.001	104	104
Po-207	0.001	104	104
Po-210	0.001	104	104
At-211	1	107	107
Ra-223	0.01	105	105
Ra-224+	0.01	105	105
Ra-225	0.01	105	105
Ra-226+	0.01	105	105
Ra-227	1	107	107
Ra-228	0.01	105	105
Ac-227	0.1	106	106
Ac-228	0.001	104	104
Th-226	0.1	106	106
Th-227	0.01	105	105
Th-228	1	107	107
Th-229	0.01	105	105
Th-230	1	107	107
Th-231	0.1	106	106
Th-232	1	106	107
Th-234	0.1	106	106
Pa-230	0.01	105	105
Pa-231	0.01	105	105
Pa-233	0.1	106	106
U-230	0.1	106	106
U-231	10	108	108
U-232	0.1	106	106
U-233	0.1	106	106
U-234	0.1	106	106
U-235+	0.1	106	106
U-236	0.1	106	106
U-237	10	108	108
U-238+	0.1	106	106
U-239	10	108	108
U-240	10	108	108
Np-237	0.1	106	106
Np-239	1	107	107
Np-240	0.1	106	106
Pu-234	0.01	105	105
Pu-235	0.01	105	105
Pu-236	1	107	107
Pu-237	0.1	106	106
Pu-238	0.1	106	106
Pu-239	0.1	106	106
Pu-240	0.1	106	106
Pu-241	10	108	108
Pu-242	0.1	106	106
Pu-243	0.1	106	106
Pu-244	0.1	106	106
Am-241	0.1	106	106
Am-242	0.1	106	106
Am-242m	0.1	106	106
Am-243	0.1	106	106
Cm-242	1	107	107
Cm-243	0.1	106	106
Cm-244	0.1	106	106
Cm-245	0.01	105	105
Cm-246	0.1	106	106
Cm-247	0.01	105	105
Cm-248	0.1	106	106
Bk-249	102	109	109
Cf-246	1	107	107
Cf-248	1	107	107
Cf-249	0.01	105	105
Cf-250	0.1	106	106
Cf-251	0.01	105	105
Cf-252	0.1	106	106
Cf-253	10	108	108
Cf-254	0.0001	103	103
Es-253	1	107	107
Es-254	0.1	106	106
Es-254m	0.01	105	105
Fm-254	1	107	107
Fm-255	0.1	106	106
Any other radionuclide that is not of natural terrestrial or cosmic origin	0.0001	103	103
	or that concentration which gives rise to a dose to a member of the public of 10 microsieverts per year calculated in accordance with the methodology used to calculate other concentrations in this table M2 .	or that quantity which corresponds to 3,000m3 of aqueous radioactive waste up to the appropriate concentration as calculated in accordance with column 2.	or that quantity which corresponds to 10,000m3 of aqueous radioactive waste up to the appropriate concentration as calculated in accordance with column 2.

(2) The summation rule in respect of column 2 of Table 7 is the sum of the quotients A/B where—

(a) “A” means the concentration in Bq/ litre of each radionuclide listed in column 1 of Table 7 that is present in aqueous waste which is not described in a row in column 1 of Table 6, and

(b) “B” means the concentration of that radionuclide specified in column 2 of Table 7.

(3) The summation rule in respect of column 3 of Table 7 is the sum of the quotients C/D where—

(a) “C” means the quantity in Bq of each radionuclide listed in column 1 of Table 7 that is present in the aqueous waste which is not described in a row in column 1 of Table 6 which is disposed of in the year, and

(b) “D” means the quantity of that radionuclide specified in column 3 of Table 7.

(4) The summation rule in respect of column 4 of Table 7 is the sum of the quotients C/E where—

(a) “C” means the quantity in Bq of each radionuclide listed in column 1 of Table 7 that is present in the aqueous waste which is not described in a row in column 1 of Table 6 which is disposed of in the year, and

(b) “E” means the quantity of that radionuclide specified in column 4 of Table 7.

Marginal Citations

M2 The concentrations in this table were calculated using methods adopted by the Health Protection Agency in their document HPA-CRCE-005 - Derivation of Liquid Exclusion or Exemption Levels to Support the RSA93 Exemption Order Review, published in Chilton, Oxfordshire in August 2010 (ISBN 0-978-85951-673-0).

Interpretation of this Section E+W

29.  In this Section, where any radionuclide carries the suffix “+” or “sec”—

(a) that radionuclide represents the parent radionuclide in secular equilibrium with the corresponding daughter radionuclides which are identified in column 2 of Table 8 adjacent to that parent radionuclide, and

(b) a concentration or activity value given in respect of such a parent radionuclide is the value for the parent radionuclide alone, but already takes into account the daughter radionuclides in column 2 that are present.

Table 8 E+W

30.  The Table 8 referred to in paragraph 29 is—

Table 8

Radionuclides in secular equilibrium

Parent radionuclide	Daughter radionuclides
Sr-90+	Y-90
Zr-93+	Nb-93m
Zr-95+	Nb-95
Zr-97+	Nb-97
Ru-106+	Rh-106
Ag-108m+	Ag-108
Cs-137+	Ba-137m
Ba-140+	La-140
Ce-144+	Pr-144
Pb-210+	Bi-210, Po-210
Pb-212+	Bi-212, Tl-208, Po-212
Bi-212+	Tl-208, Po-212
Rn-220+	Po-216
Rn-222+	Po-218, Pb-214, Bi-214, Po-214
Ra-223+	Rn-219, Po-215, Pb-211, Bi-211, Tl-207
Ra-224+	Where Ra-224+ is referred to in Table 5: Rn-220, Po-216, Pb-212, Bi-212, Tl-208, Po-212
	Where Ra-224+ is referred to in Table 7: Pb-212
Ra-226+	Where Ra-226+ is referred to in [F5 Table 4A and] Table 5: Rn-222, Po-218, Pb-214, Bi-214, [F6 Po-214, Pb-210, Bi-210, Po-210]
	Where Ra-226+ is referred to in Table 7: Rn-222, Po-218, Pb-214, Bi-214, Po-214
Ra-228+	Ac-228
Th-226+	Ra-222, Rn-218, Po-214
Th-228+	Ra-224, Rn-220, Po-216, Pb-212, Bi-212, Po-212, Tl-208
Th-229+	Ra-225, Ac-225, Fr-221, At-217, Bi-213, Po-213, Pb-209
Th-232 sec	Ra-228, Ac-228, Th-228, Ra-224, Rn-220, Po-216, Pb-212, Bi-212, Po-212, Tl-208
Th-234+	Pa-234m
U-230+	Th-226, Ra-222, Rn-218, Po-214
U-232+	Th-228, Ra-224, Rn-220, Po-216, Pb-212, Bi-212, Tl-208, Po-212
U-235+	Th-231
U-238+	Th-234, Pa-234m, Pa-234
U-238 sec	Th-234, Pa-234m, U-234, Th-230, Ra-226, Rn-222, Po-218, Pb-214, Bi-214[F7 , Po-214, Pb-210, Bi-210, Po-210]
U-240+	Np-240
Np-237+	Pa-233
Am-242m+	Am-242
Am-243+	Np-239

Textual Amendments

F5 Words in Sch. 23 Pt. 6 para. 30 Table 8 inserted (2.5.2018) by The Environmental Permitting (England and Wales) (Amendment) (No. 2) Regulations 2018 (S.I. 2018/428), reg. 1, Sch. para. 35(a)(i)

F6 Words in Sch. 23 Pt. 6 para. 30 Table 8 substituted (2.5.2018) by The Environmental Permitting (England and Wales) (Amendment) (No. 2) Regulations 2018 (S.I. 2018/428), reg. 1, Sch. para. 35(a)(ii)

F7 Words in Sch. 23 Pt. 6 para. 30 Table 8 substituted (2.5.2018) by The Environmental Permitting (England and Wales) (Amendment) (No. 2) Regulations 2018 (S.I. 2018/428), reg. 1, Sch. para. 35(b)