Ohio Admin. Code 3745-81-72 - Disinfection of water from surface water sources
"
Only filtered water flow shall be used in the
it
If no interpolation is used, then the
[Note: Refer to the appendix to this rule for more information
on how to determine
[Comment: The 40 CFR 141.172, 40 CFR 141.170(d), and 40 CFR 141.530 refer to the "Code of Federal Regulations" published on July 1, 2012. At the effective date of this rule, a copy may be obtained from the "Superintendent of Documents, PO Box 371954, Pittsburgh, PA 15250-7954," (866) 512-1800, or http://bookstore.gpo.gov. This document is available for review at "Ohio EPA, Lazarus Government Center, 50 West Town Street, Columbus, OH, 43215-3425."]
Table A Minimum Requirements For Inactivation Or Removal of Cryptosporidium, Giardia Lamblia, and Viruses |
||||||||
Type of |
Required Minimum Log Removal/Inactivation |
Expected Log Removal by |
Minimum Log Inactivation by |
|||||
Cryptosporidium (Log Removal Only) |
Giardia |
Viruses |
Cryptosporidium |
Giardia |
Viruses |
Giardia |
Viruses |
|
Conventional |
2 |
3 |
4 |
2 |
2.5 |
2.0 |
0.5 |
2.0 |
Direct |
2 |
3 |
4 |
2 |
2.0 |
1.0 |
1.0 |
3.0 |
Slow Sand |
2 |
3 |
4 |
2 |
2.0 |
2.0 |
1.0 |
2.0 |
Comment: Log removal and log inactivation refer to the negative logarithm of the quotient of the concentration of an impurity after treatment divided by the concentration before treatment. For instance, a 99.9 per cent decrease in viruses has a post treatment concentration 0.001 times the pretreatment concentration and a 3 log removal designation. Common conversions include:
Removal designation |
Concentration decrease |
Quotient after/before |
0.5 log |
70% |
0.3 |
1 log |
90% |
0.1 |
1.5 log |
97% |
0.03 |
2 log |
99% |
0.01 |
2.5 log |
99.7 % |
0.003 |
3 log |
99.9 % |
0.001 |
4 log |
99.99 % |
0.0001 |
Table B-1
Of Giardia Cysts By Free Chlorine
At 0.5 ° Celsius Or Less
Chlorine Concentration (mg/L) |
pH<=6 |
pH= 6.5 |
pH= 7.0 |
|||||||||||||||
Log Inactivations |
Log Inactivations |
Log Inactivations |
||||||||||||||||
0.5 |
1.0 |
1.5 |
2.0 |
2.5 |
3.0 |
0.5 |
1.0 |
1.5 |
2.0 |
2.5 |
3.0 |
0.5 |
1.0 |
1.5 |
2.0 |
2.5 |
3.0 |
|
<= 0.4 |
23 |
46 |
69 |
91 |
114 |
137 |
27 |
54 |
82 |
109 |
136 |
163 |
33 |
65 |
98 |
130 |
163 |
195 |
0.6 |
24 |
47 |
71 |
94 |
118 |
141 |
28 |
56 |
84 |
112 |
140 |
168 |
33 |
67 |
100 |
133 |
167 |
200 |
0.8 |
24 |
48 |
73 |
97 |
121 |
145 |
29 |
57 |
86 |
115 |
143 |
172 |
34 |
68 |
103 |
137 |
171 |
205 |
1 |
25 |
49 |
74 |
99 |
123 |
148 |
29 |
59 |
88 |
117 |
147 |
176 |
35 |
70 |
105 |
140 |
175 |
210 |
1.2 |
25 |
51 |
76 |
101 |
127 |
152 |
30 |
60 |
90 |
120 |
150 |
180 |
36 |
72 |
108 |
143 |
179 |
215 |
1.4 |
26 |
52 |
78 |
103 |
129 |
155 |
31 |
61 |
92 |
123 |
153 |
184 |
37 |
74 |
111 |
147 |
184 |
221 |
1.6 |
26 |
52 |
79 |
105 |
131 |
157 |
32 |
63 |
95 |
126 |
158 |
189 |
38 |
75 |
113 |
151 |
188 |
226 |
1.8 |
27 |
54 |
81 |
108 |
135 |
162 |
32 |
64 |
97 |
129 |
161 |
193 |
39 |
77 |
116 |
154 |
193 |
231 |
2 |
28 |
55 |
83 |
110 |
138 |
165 |
33 |
66 |
99 |
131 |
164 |
197 |
39 |
79 |
118 |
157 |
197 |
236 |
2.2 |
28 |
56 |
85 |
113 |
141 |
169 |
34 |
67 |
101 |
134 |
168 |
201 |
40 |
81 |
121 |
161 |
202 |
242 |
2.4 |
29 |
57 |
86 |
115 |
143 |
172 |
34 |
68 |
103 |
137 |
171 |
205 |
41 |
82 |
124 |
165 |
206 |
247 |
2.6 |
29 |
58 |
88 |
117 |
146 |
175 |
35 |
70 |
105 |
139 |
174 |
209 |
42 |
84 |
126 |
168 |
210 |
252 |
2.8 |
30 |
59 |
89 |
119 |
148 |
178 |
36 |
71 |
107 |
142 |
178 |
213 |
43 |
86 |
129 |
171 |
214 |
257 |
3 |
30 |
60 |
91 |
121 |
151 |
181 |
36 |
72 |
109 |
145 |
181 |
217 |
44 |
87 |
131 |
174 |
218 |
261 |
pH= 7.5 |
pH= 8.0 |
pH= 8.5 |
||||||||||||||||
Chlorine Concentration (mg/L) |
Log Inactivations |
Log Inactivations |
Log Inactivations |
|||||||||||||||
0.5 |
1.0 |
1.5 |
2.0 |
2.5 |
3.0 |
0.5 |
1.0 |
1.5 |
2.0 |
2.5 |
3.0 |
0.5 |
1.0 |
1.5 |
2.0 |
2.5 |
3.0 |
|
<= 0.4 |
40 |
79 |
119 |
158 |
198 |
237 |
46 |
92 |
139 |
185 |
231 |
277 |
55 |
110 |
165 |
219 |
274 |
329 |
0.6 |
40 |
80 |
120 |
159 |
199 |
239 |
48 |
95 |
143 |
191 |
238 |
286 |
57 |
114 |
171 |
228 |
285 |
342 |
0.8 |
41 |
82 |
123 |
164 |
205 |
246 |
49 |
98 |
148 |
197 |
246 |
295 |
59 |
118 |
177 |
236 |
295 |
354 |
1 |
42 |
84 |
127 |
169 |
211 |
253 |
51 |
101 |
152 |
203 |
253 |
304 |
61 |
122 |
183 |
243 |
304 |
365 |
1.2 |
43 |
86 |
130 |
173 |
216 |
259 |
52 |
104 |
157 |
209 |
261 |
313 |
63 |
125 |
188 |
251 |
313 |
376 |
1.4 |
44 |
89 |
133 |
177 |
222 |
266 |
54 |
107 |
161 |
214 |
268 |
321 |
65 |
129 |
194 |
258 |
323 |
387 |
1.6 |
46 |
91 |
137 |
182 |
228 |
273 |
55 |
110 |
165 |
219 |
274 |
329 |
66 |
132 |
199 |
265 |
331 |
397 |
1.8 |
47 |
93 |
140 |
186 |
233 |
279 |
56 |
113 |
169 |
225 |
282 |
338 |
68 |
136 |
204 |
271 |
339 |
407 |
2 |
48 |
95 |
143 |
191 |
238 |
286 |
58 |
115 |
173 |
231 |
288 |
346 |
70 |
139 |
209 |
278 |
348 |
417 |
2.2 |
50 |
99 |
149 |
198 |
248 |
297 |
59 |
118 |
177 |
235 |
294 |
353 |
71 |
142 |
213 |
284 |
355 |
426 |
2.4 |
50 |
99 |
149 |
199 |
248 |
298 |
60 |
120 |
181 |
241 |
301 |
361 |
73 |
145 |
218 |
290 |
363 |
435 |
2.6 |
51 |
101 |
152 |
203 |
253 |
304 |
61 |
123 |
184 |
245 |
307 |
368 |
74 |
148 |
222 |
296 |
370 |
444 |
2.8 |
52 |
103 |
155 |
207 |
258 |
310 |
63 |
125 |
188 |
250 |
313 |
375 |
75 |
151 |
226 |
301 |
377 |
452 |
3 |
53 |
105 |
158 |
211 |
263 |
316 |
64 |
127 |
191 |
255 |
318 |
382 |
77 |
153 |
230 |
307 |
383 |
460 |
Chlorine Concentration (mg/L) |
pH= 9.0 or pH> 9.0 |
|||||
Log Inactivations |
||||||
0.5 |
1.0 |
1.5 |
2.0 |
2.5 |
3.0 |
|
<= 0.4 |
65 |
130 |
195 |
260 |
325 |
390 |
0.6 |
68 |
136 |
204 |
271 |
339 |
407 |
0.8 |
70 |
141 |
211 |
281 |
352 |
422 |
1 |
73 |
146 |
219 |
291 |
364 |
437 |
1.2 |
75 |
150 |
226 |
301 |
376 |
451 |
1.4 |
77 |
155 |
232 |
309 |
387 |
464 |
1.6 |
80 |
159 |
239 |
318 |
398 |
477 |
1.8 |
82 |
163 |
245 |
326 |
408 |
489 |
2 |
83 |
167 |
250 |
333 |
417 |
500 |
2.2 |
85 |
170 |
256 |
341 |
426 |
511 |
2.4 |
87 |
174 |
261 |
348 |
435 |
522 |
2.6 |
89 |
178 |
267 |
355 |
444 |
533 |
2.8 |
91 |
181 |
272 |
362 |
453 |
543 |
3 |
92 |
184 |
276 |
368 |
460 |
552 |
[Comment: CT99.9 = CT for 3 log inactivation.]
Table B-2
pH<=6 |
pH= 6.5 |
pH= 7.0 |
||||||||||||||||
Chlorine |
Log Inactivations |
Log Inactivations |
Log Inactivations |
|||||||||||||||
(mg/L) |
0.5 |
1.0 |
1.5 |
2.0 |
2.5 |
3.0 |
0.5 |
1.0 |
1.5 |
2.0 |
2.5 |
3.0 |
0.5 |
1.0 |
1.5 |
2.0 |
2.5 |
3.0 |
<= 0.4 |
16 |
32 |
49 |
65 |
81 |
97 |
20 |
39 |
59 |
78 |
98 |
117 |
23 |
46 |
70 |
93 |
116 |
139 |
0.6 |
17 |
33 |
50 |
67 |
83 |
100 |
20 |
40 |
60 |
80 |
100 |
120 |
24 |
48 |
72 |
95 |
119 |
143 |
0.8 |
17 |
34 |
52 |
69 |
86 |
103 |
20 |
41 |
61 |
81 |
102 |
122 |
24 |
49 |
73 |
97 |
122 |
146 |
1 |
18 |
35 |
53 |
70 |
88 |
105 |
21 |
42 |
63 |
83 |
104 |
125 |
25 |
50 |
75 |
99 |
124 |
149 |
1.2 |
18 |
36 |
54 |
71 |
89 |
107 |
21 |
42 |
64 |
85 |
106 |
127 |
25 |
51 |
76 |
101 |
127 |
152 |
1.4 |
18 |
36 |
55 |
73 |
91 |
109 |
22 |
43 |
65 |
87 |
108 |
130 |
26 |
52 |
78 |
103 |
129 |
155 |
1.6 |
19 |
37 |
56 |
74 |
93 |
111 |
22 |
44 |
66 |
88 |
110 |
132 |
26 |
53 |
79 |
105 |
132 |
158 |
1.8 |
19 |
38 |
57 |
76 |
95 |
114 |
23 |
45 |
68 |
90 |
113 |
135 |
27 |
54 |
81 |
108 |
135 |
162 |
2 |
19 |
39 |
58 |
77 |
97 |
116 |
23 |
46 |
69 |
92 |
115 |
138 |
28 |
55 |
83 |
110 |
138 |
165 |
2.2 |
20 |
39 |
59 |
79 |
98 |
118 |
23 |
47 |
70 |
93 |
117 |
140 |
28 |
56 |
85 |
113 |
141 |
169 |
2.4 |
20 |
40 |
60 |
80 |
100 |
120 |
24 |
48 |
72 |
95 |
119 |
143 |
29 |
57 |
86 |
115 |
143 |
172 |
2.6 |
20 |
41 |
61 |
81 |
102 |
122 |
24 |
49 |
73 |
97 |
122 |
146 |
29 |
58 |
88 |
117 |
146 |
175 |
2.8 |
21 |
41 |
62 |
83 |
103 |
124 |
25 |
49 |
74 |
99 |
123 |
148 |
30 |
59 |
89 |
119 |
148 |
178 |
3 |
21 |
42 |
63 |
84 |
105 |
126 |
25 |
50 |
76 |
101 |
126 |
151 |
30 |
61 |
91 |
121 |
152 |
182 |
pH= 7.5 |
pH= 8.0 |
pH= 8.5 |
||||||||||||||||
Chlorine |
Log Inactivations |
Log Inactivations |
Log Inactivations |
|||||||||||||||
(mg/L) |
0.5 |
1.0 |
1.5 |
2.0 |
2.5 |
3.0 |
0.5 |
1.0 |
1.5 |
2.0 |
2.5 |
3.0 |
0.5 |
1.0 |
1.5 |
2.0 |
2.5 |
3.0 |
<= 0.4 |
28 |
55 |
83 |
111 |
138 |
166 |
33 |
66 |
99 |
132 |
165 |
198 |
39 |
79 |
118 |
157 |
197 |
236 |
0.6 |
29 |
57 |
86 |
114 |
143 |
171 |
34 |
68 |
102 |
136 |
170 |
204 |
41 |
81 |
122 |
163 |
203 |
244 |
0.8 |
29 |
58 |
88 |
117 |
146 |
175 |
35 |
70 |
105 |
140 |
175 |
210 |
42 |
84 |
126 |
168 |
210 |
252 |
1 |
30 |
60 |
90 |
119 |
149 |
179 |
36 |
72 |
108 |
144 |
180 |
216 |
43 |
87 |
130 |
173 |
217 |
260 |
1.2 |
31 |
61 |
92 |
122 |
153 |
183 |
37 |
74 |
111 |
147 |
184 |
221 |
45 |
89 |
134 |
178 |
223 |
267 |
1.4 |
31 |
62 |
94 |
125 |
156 |
187 |
38 |
76 |
114 |
151 |
189 |
227 |
46 |
91 |
137 |
183 |
228 |
274 |
1.6 |
32 |
64 |
96 |
128 |
160 |
192 |
39 |
77 |
116 |
155 |
193 |
232 |
47 |
94 |
141 |
187 |
234 |
281 |
1.8 |
33 |
65 |
98 |
131 |
163 |
196 |
40 |
79 |
119 |
159 |
198 |
238 |
48 |
96 |
144 |
191 |
239 |
287 |
2 |
33 |
67 |
100 |
133 |
167 |
200 |
41 |
81 |
122 |
162 |
203 |
243 |
49 |
98 |
147 |
196 |
245 |
294 |
2.2 |
34 |
68 |
102 |
136 |
170 |
204 |
41 |
83 |
124 |
165 |
207 |
248 |
50 |
100 |
150 |
200 |
250 |
300 |
2.4 |
35 |
70 |
105 |
139 |
174 |
209 |
42 |
84 |
127 |
169 |
211 |
253 |
51 |
102 |
153 |
204 |
255 |
306 |
2.6 |
36 |
71 |
107 |
142 |
178 |
213 |
43 |
86 |
129 |
172 |
215 |
258 |
52 |
104 |
156 |
208 |
260 |
312 |
2.8 |
36 |
72 |
109 |
145 |
181 |
217 |
44 |
88 |
132 |
175 |
219 |
263 |
53 |
106 |
159 |
212 |
265 |
318 |
3 |
37 |
74 |
111 |
147 |
184 |
221 |
45 |
89 |
134 |
179 |
223 |
268 |
54 |
108 |
162 |
216 |
270 |
324 |
pH= 9.0 or pH> 9.0 |
||||||
Chlorine |
Log Inactivations |
|||||
(mg/L) |
0.5 |
1.0 |
1.5 |
2.0 |
2.5 |
3.0 |
<= 0.4 |
47 |
93 |
140 |
186 |
233 |
279 |
0.6 |
49 |
97 |
146 |
194 |
243 |
291 |
0.8 |
50 |
100 |
151 |
201 |
251 |
301 |
1 |
52 |
104 |
156 |
208 |
260 |
312 |
1.2 |
53 |
107 |
160 |
213 |
267 |
320 |
1.4 |
55 |
110 |
165 |
219 |
274 |
329 |
1.6 |
56 |
112 |
169 |
225 |
281 |
337 |
1.8 |
58 |
115 |
173 |
230 |
288 |
345 |
2 |
59 |
118 |
177 |
235 |
294 |
353 |
2.2 |
60 |
120 |
181 |
241 |
301 |
361 |
2.4 |
61 |
123 |
184 |
245 |
307 |
368 |
2.6 |
63 |
125 |
188 |
250 |
313 |
375 |
2.8 |
64 |
127 |
191 |
255 |
318 |
382 |
3 |
65 |
130 |
195 |
259 |
324 |
389 |
[Comment: CT99.9 = CT for 3 log inactivation.]
Table B-3
pH<=6 |
pH= 6.5 |
pH= 7.0 |
||||||||||||||||
Chlorine Concentration (mg/L) |
Log Inactivations |
Log Inactivations |
Log Inactivations |
|||||||||||||||
0.5 |
1.0 |
1.5 |
2.0 |
2.5 |
3.0 |
0.5 |
1.0 |
1.5 |
2.0 |
2.5 |
3.0 |
0.5 |
1.0 |
1.5 |
2.0 |
2.5 |
3.0 |
|
<= 0.4 |
12 |
24 |
37 |
49 |
61 |
73 |
15 |
29 |
44 |
59 |
73 |
88 |
17 |
35 |
52 |
69 |
87 |
104 |
0.6 |
13 |
25 |
38 |
50 |
63 |
75 |
15 |
30 |
45 |
60 |
75 |
90 |
18 |
36 |
54 |
71 |
89 |
107 |
0.8 |
13 |
26 |
39 |
52 |
65 |
78 |
15 |
31 |
46 |
61 |
77 |
92 |
18 |
37 |
55 |
73 |
92 |
110 |
1 |
13 |
26 |
40 |
53 |
66 |
79 |
16 |
31 |
47 |
63 |
78 |
94 |
19 |
37 |
56 |
75 |
93 |
112 |
1.2 |
13 |
27 |
40 |
53 |
67 |
80 |
16 |
32 |
48 |
63 |
79 |
95 |
19 |
38 |
57 |
76 |
95 |
114 |
1.4 |
14 |
27 |
41 |
55 |
68 |
82 |
16 |
33 |
49 |
65 |
82 |
98 |
19 |
39 |
58 |
77 |
97 |
116 |
1.6 |
14 |
28 |
42 |
55 |
69 |
83 |
17 |
33 |
50 |
66 |
83 |
99 |
20 |
40 |
60 |
79 |
99 |
119 |
1.8 |
14 |
29 |
43 |
57 |
72 |
86 |
17 |
34 |
51 |
67 |
84 |
101 |
20 |
41 |
61 |
81 |
102 |
122 |
2 |
15 |
29 |
44 |
58 |
73 |
87 |
17 |
35 |
52 |
69 |
87 |
104 |
21 |
41 |
62 |
83 |
103 |
124 |
2.2 |
15 |
30 |
45 |
59 |
74 |
89 |
18 |
35 |
53 |
70 |
88 |
105 |
21 |
42 |
64 |
85 |
106 |
127 |
2.4 |
15 |
30 |
45 |
60 |
75 |
90 |
18 |
36 |
54 |
71 |
89 |
107 |
22 |
43 |
65 |
86 |
108 |
129 |
2.6 |
15 |
31 |
46 |
61 |
77 |
92 |
18 |
37 |
55 |
73 |
92 |
110 |
22 |
44 |
66 |
87 |
109 |
131 |
2.8 |
16 |
31 |
47 |
62 |
78 |
93 |
19 |
37 |
56 |
74 |
93 |
111 |
22 |
45 |
67 |
89 |
112 |
134 |
3 |
16 |
32 |
48 |
63 |
79 |
95 |
19 |
38 |
57 |
75 |
94 |
113 |
23 |
46 |
69 |
91 |
114 |
137 |
pH= 7.5 |
pH= 8.0 |
pH= 8.5 |
||||||||||||||||
Chlorine Concentration (mg/L) |
Log Inactivations |
Log Inactivations |
Log Inactivations |
|||||||||||||||
0.5 |
1.0 |
1.5 |
2.0 |
2.5 |
3.0 |
0.5 |
1.0 |
1.5 |
2.0 |
2.5 |
3.0 |
0.5 |
1.0 |
1.5 |
2.0 |
2.5 |
3.0 |
|
<= 0.4 |
21 |
42 |
63 |
83 |
104 |
125 |
25 |
50 |
75 |
99 |
124 |
149 |
30 |
59 |
89 |
118 |
148 |
177 |
0.6 |
21 |
43 |
64 |
85 |
107 |
128 |
26 |
51 |
77 |
102 |
128 |
153 |
31 |
61 |
92 |
122 |
153 |
183 |
0.8 |
22 |
44 |
66 |
87 |
109 |
131 |
26 |
53 |
79 |
105 |
132 |
158 |
32 |
63 |
95 |
126 |
158 |
189 |
1 |
22 |
45 |
67 |
89 |
112 |
134 |
27 |
54 |
81 |
108 |
135 |
162 |
33 |
65 |
98 |
130 |
163 |
195 |
1.2 |
23 |
46 |
69 |
91 |
114 |
137 |
28 |
55 |
83 |
111 |
138 |
166 |
33 |
67 |
100 |
133 |
167 |
200 |
1.4 |
23 |
47 |
70 |
93 |
117 |
140 |
28 |
57 |
85 |
113 |
142 |
170 |
34 |
69 |
103 |
137 |
172 |
206 |
1.6 |
24 |
48 |
72 |
96 |
120 |
144 |
29 |
58 |
87 |
116 |
145 |
174 |
35 |
70 |
106 |
141 |
176 |
211 |
1.8 |
25 |
49 |
74 |
98 |
123 |
147 |
30 |
60 |
90 |
119 |
149 |
179 |
36 |
72 |
108 |
143 |
179 |
215 |
2 |
25 |
50 |
75 |
100 |
125 |
150 |
30 |
61 |
91 |
121 |
152 |
182 |
37 |
74 |
111 |
147 |
184 |
221 |
2.2 |
26 |
51 |
77 |
102 |
128 |
153 |
31 |
62 |
93 |
124 |
155 |
186 |
38 |
75 |
113 |
150 |
188 |
225 |
2.4 |
26 |
52 |
79 |
105 |
131 |
157 |
32 |
63 |
95 |
127 |
158 |
190 |
38 |
77 |
115 |
153 |
192 |
230 |
2.6 |
27 |
53 |
80 |
107 |
133 |
160 |
32 |
65 |
97 |
129 |
162 |
194 |
39 |
78 |
117 |
156 |
195 |
234 |
2.8 |
27 |
54 |
82 |
109 |
136 |
163 |
33 |
66 |
99 |
131 |
164 |
197 |
40 |
80 |
120 |
159 |
199 |
239 |
3 |
28 |
55 |
83 |
111 |
138 |
166 |
34 |
67 |
101 |
134 |
168 |
201 |
41 |
81 |
122 |
162 |
203 |
243 |
pH= 9.0 or pH> 9.0 |
||||||
Chlorine Concentration (mg/L) |
Log Inactivations |
|||||
0.5 |
1.0 |
1.5 |
2.0 |
2.5 |
3.0 |
|
<= 0.4 |
35 |
70 |
105 |
139 |
174 |
209 |
0.6 |
36 |
73 |
109 |
145 |
182 |
218 |
0.8 |
38 |
75 |
113 |
151 |
188 |
226 |
1 |
39 |
78 |
117 |
156 |
195 |
234 |
1.2 |
40 |
80 |
120 |
160 |
200 |
240 |
1.4 |
41 |
82 |
124 |
165 |
206 |
247 |
1.6 |
42 |
84 |
127 |
169 |
211 |
253 |
1.8 |
43 |
86 |
130 |
173 |
216 |
259 |
2 |
44 |
88 |
133 |
177 |
221 |
265 |
2.2 |
45 |
90 |
136 |
181 |
226 |
271 |
2.4 |
46 |
92 |
138 |
184 |
230 |
276 |
2.6 |
47 |
94 |
141 |
187 |
234 |
281 |
2.8 |
48 |
96 |
144 |
191 |
239 |
287 |
3 |
49 |
97 |
146 |
195 |
243 |
292 |
[Comment: CT99.9 = CT for 3 log inactivation.]
Table B-4
pH<=6 |
pH= 6.5 |
pH= 7.0 |
||||||||||||||||
Chlorine Concentration (mg/L) |
Log Inactivations |
Log Inactivations |
Log Inactivations |
|||||||||||||||
0.5 |
1.0 |
1.5 |
2.0 |
2.5 |
3.0 |
0.5 |
1.0 |
1.5 |
2.0 |
2.5 |
3.0 |
0.5 |
1.0 |
1.5 |
2.0 |
2.5 |
3.0 |
|
<= 0.4 |
8 |
16 |
25 |
33 |
41 |
49 |
10 |
20 |
30 |
39 |
49 |
59 |
12 |
23 |
35 |
47 |
58 |
70 |
0.6 |
8 |
17 |
25 |
33 |
42 |
50 |
10 |
20 |
30 |
40 |
50 |
60 |
12 |
24 |
36 |
48 |
60 |
72 |
0.8 |
9 |
17 |
26 |
35 |
43 |
52 |
10 |
20 |
31 |
41 |
51 |
61 |
12 |
24 |
37 |
49 |
61 |
73 |
1 |
9 |
18 |
27 |
35 |
44 |
53 |
11 |
21 |
32 |
42 |
53 |
63 |
13 |
25 |
38 |
50 |
63 |
75 |
1.2 |
9 |
18 |
27 |
36 |
45 |
54 |
11 |
21 |
32 |
43 |
53 |
64 |
13 |
25 |
38 |
51 |
63 |
76 |
1.4 |
9 |
18 |
28 |
37 |
46 |
55 |
11 |
22 |
33 |
43 |
54 |
65 |
13 |
26 |
39 |
52 |
65 |
78 |
1.6 |
9 |
19 |
28 |
37 |
47 |
56 |
11 |
22 |
33 |
44 |
55 |
66 |
13 |
26 |
40 |
53 |
66 |
79 |
1.8 |
10 |
19 |
29 |
38 |
48 |
57 |
11 |
23 |
34 |
45 |
57 |
68 |
14 |
27 |
41 |
54 |
68 |
81 |
2 |
10 |
19 |
29 |
39 |
48 |
58 |
12 |
23 |
35 |
46 |
58 |
69 |
14 |
28 |
42 |
55 |
69 |
83 |
2.2 |
10 |
20 |
30 |
39 |
49 |
59 |
12 |
23 |
35 |
47 |
58 |
70 |
14 |
28 |
43 |
57 |
71 |
85 |
2.4 |
10 |
20 |
30 |
40 |
50 |
60 |
12 |
24 |
36 |
48 |
60 |
72 |
14 |
29 |
43 |
57 |
72 |
86 |
2.6 |
10 |
20 |
31 |
41 |
51 |
61 |
12 |
24 |
37 |
49 |
61 |
73 |
15 |
29 |
44 |
59 |
73 |
88 |
2.8 |
10 |
21 |
31 |
41 |
52 |
62 |
12 |
25 |
37 |
49 |
62 |
74 |
15 |
30 |
45 |
59 |
74 |
89 |
3 |
11 |
21 |
32 |
42 |
53 |
63 |
13 |
25 |
38 |
51 |
63 |
76 |
15 |
30 |
46 |
61 |
76 |
91 |
pH= 7.5 |
pH= 8.0 |
pH= 8.5 |
||||||||||||||||
Chlorine Concentration (mg/L) |
Log Inactivations |
Log Inactivations |
Log Inactivations |
|||||||||||||||
0.5 |
1.0 |
1.5 |
2.0 |
2.5 |
3.0 |
0.5 |
1.0 |
1.5 |
2.0 |
2.5 |
3.0 |
0.5 |
1.0 |
1.5 |
2.0 |
2.5 |
3.0 |
|
<= 0.4 |
14 |
28 |
42 |
55 |
69 |
83 |
17 |
33 |
50 |
66 |
83 |
99 |
20 |
39 |
59 |
79 |
98 |
118 |
0.6 |
14 |
29 |
43 |
57 |
72 |
86 |
17 |
34 |
51 |
68 |
85 |
102 |
20 |
41 |
61 |
81 |
102 |
122 |
0.8 |
15 |
29 |
44 |
59 |
73 |
88 |
18 |
35 |
53 |
70 |
88 |
105 |
21 |
42 |
63 |
84 |
105 |
126 |
1 |
15 |
30 |
45 |
60 |
75 |
90 |
18 |
36 |
54 |
72 |
90 |
108 |
22 |
43 |
65 |
87 |
108 |
130 |
1.2 |
15 |
31 |
46 |
61 |
77 |
92 |
19 |
37 |
56 |
74 |
93 |
111 |
22 |
45 |
67 |
89 |
112 |
134 |
1.4 |
16 |
31 |
47 |
63 |
78 |
94 |
19 |
38 |
57 |
76 |
95 |
114 |
23 |
46 |
69 |
91 |
114 |
137 |
1.6 |
16 |
32 |
48 |
64 |
80 |
96 |
19 |
39 |
58 |
77 |
97 |
116 |
24 |
47 |
71 |
94 |
118 |
141 |
1.8 |
16 |
33 |
49 |
65 |
82 |
98 |
20 |
40 |
60 |
79 |
99 |
119 |
24 |
48 |
72 |
96 |
120 |
144 |
2 |
17 |
33 |
50 |
67 |
83 |
100 |
20 |
41 |
61 |
81 |
102 |
122 |
25 |
49 |
74 |
98 |
123 |
147 |
2.2 |
17 |
34 |
51 |
68 |
85 |
102 |
21 |
41 |
62 |
83 |
103 |
124 |
25 |
50 |
75 |
100 |
125 |
150 |
2.4 |
18 |
35 |
53 |
70 |
88 |
105 |
21 |
42 |
64 |
85 |
106 |
127 |
26 |
51 |
77 |
102 |
128 |
153 |
2.6 |
18 |
36 |
54 |
71 |
89 |
107 |
22 |
43 |
65 |
86 |
108 |
129 |
26 |
52 |
78 |
104 |
130 |
156 |
2.8 |
18 |
36 |
55 |
73 |
91 |
109 |
22 |
44 |
66 |
88 |
110 |
132 |
27 |
53 |
80 |
106 |
133 |
159 |
3 |
19 |
37 |
56 |
74 |
93 |
111 |
22 |
45 |
67 |
89 |
112 |
134 |
27 |
54 |
81 |
108 |
135 |
162 |
pH= 9.0 or pH> 9.0 |
||||||
Chlorine Concentration (mg/L) |
Log Inactivations |
|||||
0.5 |
1.0 |
1.5 |
2.0 |
2.5 |
3.0 |
|
<= 0.4 |
23 |
47 |
70 |
93 |
117 |
140 |
0.6 |
24 |
49 |
73 |
97 |
122 |
146 |
0.8 |
25 |
50 |
76 |
101 |
126 |
151 |
1 |
26 |
52 |
78 |
104 |
130 |
156 |
1.2 |
27 |
53 |
80 |
107 |
133 |
160 |
1.4 |
28 |
55 |
83 |
110 |
138 |
165 |
1.6 |
28 |
56 |
85 |
113 |
141 |
169 |
1.8 |
29 |
58 |
87 |
115 |
144 |
173 |
2 |
30 |
59 |
89 |
118 |
148 |
177 |
2.2 |
30 |
60 |
91 |
121 |
151 |
181 |
2.4 |
31 |
61 |
92 |
123 |
153 |
184 |
2.6 |
31 |
63 |
94 |
125 |
157 |
188 |
2.8 |
32 |
64 |
96 |
127 |
159 |
191 |
3 |
33 |
65 |
98 |
130 |
163 |
195 |
[Comment: CT99.9 = CT for 3 log inactivation.]
Table B-5
pH<=6 |
pH= 6.5 |
pH= 7.0 |
||||||||||||||||
Chlorine Concentration (mg/L) |
Log Inactivations |
Log Inactivations |
Log Inactivations |
|||||||||||||||
0.5 |
1.0 |
1.5 |
2.0 |
2.5 |
3.0 |
0.5 |
1.0 |
1.5 |
2.0 |
2.5 |
3.0 |
0.5 |
1.0 |
1.5 |
2.0 |
2.5 |
3.0 |
|
<= 0.4 |
6 |
12 |
18 |
24 |
30 |
36 |
7 |
15 |
22 |
29 |
37 |
44 |
9 |
17 |
26 |
35 |
43 |
52 |
0.6 |
6 |
13 |
19 |
25 |
32 |
38 |
8 |
15 |
23 |
30 |
38 |
45 |
9 |
18 |
27 |
36 |
45 |
54 |
0.8 |
7 |
13 |
20 |
26 |
33 |
39 |
8 |
15 |
23 |
31 |
38 |
46 |
9 |
18 |
28 |
37 |
46 |
55 |
1 |
7 |
13 |
20 |
26 |
33 |
39 |
8 |
16 |
24 |
31 |
39 |
47 |
9 |
19 |
28 |
37 |
47 |
56 |
1.2 |
7 |
13 |
20 |
27 |
33 |
40 |
8 |
16 |
24 |
32 |
40 |
48 |
10 |
19 |
29 |
38 |
48 |
57 |
1.4 |
7 |
14 |
21 |
27 |
34 |
41 |
8 |
16 |
25 |
33 |
41 |
49 |
10 |
19 |
29 |
39 |
48 |
58 |
1.6 |
7 |
14 |
21 |
28 |
35 |
42 |
8 |
17 |
25 |
33 |
42 |
50 |
10 |
20 |
30 |
39 |
49 |
59 |
1.8 |
7 |
14 |
22 |
29 |
36 |
43 |
9 |
17 |
26 |
34 |
43 |
51 |
10 |
20 |
31 |
41 |
51 |
61 |
2 |
7 |
15 |
22 |
29 |
37 |
44 |
9 |
17 |
26 |
35 |
43 |
52 |
10 |
21 |
31 |
41 |
52 |
62 |
2.2 |
7 |
15 |
22 |
29 |
37 |
44 |
9 |
18 |
27 |
35 |
44 |
53 |
11 |
21 |
32 |
42 |
53 |
63 |
2.4 |
8 |
15 |
23 |
30 |
38 |
45 |
9 |
18 |
27 |
36 |
45 |
54 |
11 |
22 |
33 |
43 |
54 |
65 |
2.6 |
8 |
15 |
23 |
31 |
38 |
46 |
9 |
18 |
28 |
37 |
46 |
55 |
11 |
22 |
33 |
44 |
55 |
66 |
2.8 |
8 |
16 |
24 |
31 |
39 |
47 |
9 |
19 |
28 |
37 |
47 |
56 |
11 |
22 |
34 |
45 |
56 |
67 |
3 |
8 |
16 |
24 |
31 |
39 |
47 |
10 |
19 |
29 |
38 |
48 |
57 |
11 |
23 |
34 |
45 |
57 |
68 |
pH= 7.5 |
pH= 8.0 |
pH= 8.5 |
||||||||||||||||
Chlorine Concentration (mg/L) |
Log Inactivations |
Log Inactivations |
Log Inactivations |
|||||||||||||||
0.5 |
1.0 |
1.5 |
2.0 |
2.5 |
3.0 |
0.5 |
1.0 |
1.5 |
2.0 |
2.5 |
3.0 |
0.5 |
1.0 |
1.5 |
2.0 |
2.5 |
3.0 |
|
<= 0.4 |
10 |
21 |
31 |
41 |
52 |
62 |
12 |
25 |
37 |
49 |
62 |
74 |
15 |
30 |
45 |
59 |
74 |
89 |
0.6 |
11 |
21 |
32 |
43 |
53 |
64 |
13 |
26 |
39 |
51 |
64 |
77 |
15 |
31 |
46 |
61 |
77 |
92 |
0.8 |
11 |
22 |
33 |
44 |
55 |
66 |
13 |
26 |
40 |
53 |
66 |
79 |
16 |
32 |
48 |
63 |
79 |
95 |
1 |
11 |
22 |
34 |
45 |
56 |
67 |
14 |
27 |
41 |
54 |
68 |
81 |
16 |
33 |
49 |
65 |
82 |
98 |
1.2 |
12 |
23 |
35 |
46 |
58 |
69 |
14 |
28 |
42 |
55 |
69 |
83 |
17 |
33 |
50 |
67 |
83 |
100 |
1.4 |
12 |
23 |
35 |
47 |
58 |
70 |
14 |
28 |
43 |
57 |
71 |
85 |
17 |
34 |
52 |
69 |
86 |
103 |
1.6 |
12 |
24 |
36 |
48 |
60 |
72 |
15 |
29 |
44 |
58 |
73 |
87 |
18 |
35 |
53 |
70 |
88 |
105 |
1.8 |
12 |
25 |
37 |
49 |
62 |
74 |
15 |
30 |
45 |
59 |
74 |
89 |
18 |
36 |
54 |
72 |
90 |
108 |
2 |
13 |
25 |
38 |
50 |
63 |
75 |
15 |
30 |
46 |
61 |
76 |
91 |
18 |
37 |
55 |
73 |
92 |
110 |
2.2 |
13 |
26 |
39 |
51 |
64 |
77 |
16 |
31 |
47 |
62 |
78 |
93 |
19 |
38 |
57 |
75 |
94 |
113 |
2.4 |
13 |
26 |
39 |
52 |
65 |
78 |
16 |
32 |
48 |
63 |
79 |
95 |
19 |
38 |
58 |
77 |
96 |
115 |
2.6 |
13 |
27 |
40 |
53 |
67 |
80 |
16 |
32 |
49 |
65 |
81 |
97 |
20 |
39 |
59 |
78 |
98 |
117 |
2.8 |
14 |
27 |
41 |
54 |
68 |
81 |
17 |
33 |
50 |
66 |
83 |
99 |
20 |
40 |
60 |
79 |
99 |
119 |
3 |
14 |
28 |
42 |
55 |
69 |
83 |
17 |
34 |
51 |
67 |
84 |
101 |
20 |
41 |
61 |
81 |
102 |
122 |
pH= 9.0 or pH> 9.0 |
||||||
Chlorine Concentration (mg/L) |
Log Inactivations |
|||||
0.5 |
1.0 |
1.5 |
2.0 |
2.5 |
3.0 |
|
<= 0.4 |
18 |
35 |
53 |
70 |
88 |
105 |
0.6 |
18 |
36 |
55 |
73 |
91 |
109 |
0.8 |
19 |
38 |
57 |
75 |
94 |
113 |
1 |
20 |
39 |
59 |
78 |
98 |
117 |
1.2 |
20 |
40 |
60 |
80 |
100 |
120 |
1.4 |
21 |
41 |
62 |
82 |
103 |
123 |
1.6 |
21 |
42 |
63 |
84 |
105 |
126 |
1.8 |
22 |
43 |
65 |
86 |
108 |
129 |
2 |
22 |
44 |
66 |
88 |
110 |
132 |
2.2 |
23 |
45 |
68 |
90 |
113 |
135 |
2.4 |
23 |
46 |
69 |
92 |
115 |
138 |
2.6 |
24 |
47 |
71 |
94 |
118 |
141 |
2.8 |
24 |
48 |
72 |
95 |
119 |
143 |
3 |
24 |
49 |
73 |
97 |
122 |
146 |
[Comment: CT99.9 = CT for 3 log inactivation.]
Table B-6
pH<=6 |
pH= 6.5 |
pH= 7.0 |
||||||||||||||||
Chlorine |
Log Inactivations |
Log Inactivations |
Log Inactivations |
|||||||||||||||
(mg/L) |
0.5 |
1.0 |
1.5 |
2.0 |
2.5 |
3.0 |
0.5 |
1.0 |
1.5 |
2.0 |
2.5 |
3.0 |
0.5 |
1.0 |
1.5 |
2.0 |
2.5 |
3.0 |
<= 0.4 |
4 |
8 |
12 |
16 |
20 |
24 |
5 |
10 |
15 |
19 |
24 |
29 |
6 |
12 |
18 |
23 |
29 |
35 |
0.6 |
4 |
8 |
13 |
17 |
21 |
25 |
5 |
10 |
15 |
20 |
25 |
30 |
6 |
12 |
18 |
24 |
30 |
36 |
0.8 |
4 |
9 |
13 |
17 |
22 |
26 |
5 |
10 |
16 |
21 |
26 |
31 |
6 |
12 |
19 |
25 |
31 |
37 |
1 |
4 |
9 |
13 |
17 |
22 |
26 |
5 |
10 |
16 |
21 |
26 |
31 |
6 |
12 |
19 |
25 |
31 |
37 |
1.2 |
5 |
9 |
14 |
18 |
23 |
27 |
5 |
11 |
16 |
21 |
27 |
32 |
6 |
13 |
19 |
25 |
32 |
38 |
1.4 |
5 |
9 |
14 |
18 |
23 |
27 |
6 |
11 |
17 |
22 |
28 |
33 |
7 |
13 |
20 |
26 |
33 |
39 |
1.6 |
5 |
9 |
14 |
19 |
23 |
28 |
6 |
11 |
17 |
22 |
28 |
33 |
7 |
13 |
20 |
27 |
33 |
40 |
1.8 |
5 |
10 |
15 |
19 |
24 |
29 |
6 |
11 |
17 |
23 |
28 |
34 |
7 |
14 |
21 |
27 |
34 |
41 |
2 |
5 |
10 |
15 |
19 |
24 |
29 |
6 |
12 |
18 |
23 |
29 |
35 |
7 |
14 |
21 |
27 |
34 |
41 |
2.2 |
5 |
10 |
15 |
20 |
25 |
30 |
6 |
12 |
18 |
23 |
29 |
35 |
7 |
14 |
21 |
28 |
35 |
42 |
2.4 |
5 |
10 |
15 |
20 |
25 |
30 |
6 |
12 |
18 |
24 |
30 |
36 |
7 |
14 |
22 |
29 |
36 |
43 |
2.6 |
5 |
10 |
16 |
21 |
26 |
31 |
6 |
12 |
19 |
25 |
31 |
37 |
7 |
15 |
22 |
29 |
37 |
44 |
2.8 |
5 |
10 |
16 |
21 |
26 |
31 |
6 |
12 |
19 |
25 |
31 |
37 |
8 |
15 |
23 |
30 |
38 |
45 |
3 |
5 |
11 |
16 |
21 |
27 |
32 |
6 |
13 |
19 |
25 |
32 |
38 |
8 |
15 |
23 |
31 |
38 |
46 |
pH= 7.5 |
pH= 8.0 |
pH= 8.5 |
||||||||||||||||
Chlorine |
Log Inactivations |
Log Inactivations |
Log Inactivations |
|||||||||||||||
(mg/L) |
0.5 |
1.0 |
1.5 |
2.0 |
2.5 |
3.0 |
0.5 |
1.0 |
1.5 |
2.0 |
2.5 |
3.0 |
0.5 |
1.0 |
1.5 |
2.0 |
2.5 |
3.0 |
<= 0.4 |
7 |
14 |
21 |
28 |
35 |
42 |
8 |
17 |
25 |
33 |
42 |
50 |
10 |
20 |
30 |
39 |
49 |
59 |
0.6 |
7 |
14 |
22 |
29 |
36 |
43 |
9 |
17 |
26 |
34 |
43 |
51 |
10 |
20 |
31 |
41 |
51 |
61 |
0.8 |
7 |
15 |
22 |
29 |
37 |
44 |
9 |
18 |
27 |
35 |
44 |
53 |
11 |
21 |
32 |
42 |
53 |
63 |
1 |
8 |
15 |
23 |
30 |
38 |
45 |
9 |
18 |
27 |
36 |
45 |
54 |
11 |
22 |
33 |
43 |
54 |
65 |
1.2 |
8 |
15 |
23 |
31 |
38 |
46 |
9 |
18 |
28 |
37 |
46 |
55 |
11 |
22 |
34 |
45 |
56 |
67 |
1.4 |
8 |
16 |
24 |
31 |
39 |
47 |
10 |
19 |
29 |
38 |
48 |
57 |
12 |
23 |
35 |
46 |
58 |
69 |
1.6 |
8 |
16 |
24 |
32 |
40 |
48 |
10 |
19 |
29 |
39 |
48 |
58 |
12 |
23 |
35 |
47 |
58 |
70 |
1.8 |
8 |
16 |
25 |
33 |
41 |
49 |
10 |
20 |
30 |
40 |
50 |
60 |
12 |
24 |
36 |
48 |
60 |
72 |
2 |
8 |
17 |
25 |
33 |
42 |
50 |
10 |
20 |
31 |
41 |
51 |
61 |
12 |
25 |
37 |
49 |
62 |
74 |
2.2 |
9 |
17 |
26 |
34 |
43 |
51 |
10 |
21 |
31 |
41 |
52 |
62 |
13 |
25 |
38 |
50 |
63 |
75 |
2.4 |
9 |
17 |
26 |
35 |
43 |
52 |
11 |
21 |
32 |
42 |
53 |
63 |
13 |
26 |
39 |
51 |
64 |
77 |
2.6 |
9 |
18 |
27 |
35 |
44 |
53 |
11 |
22 |
33 |
43 |
54 |
65 |
13 |
26 |
39 |
52 |
65 |
78 |
2.8 |
9 |
18 |
27 |
36 |
45 |
54 |
11 |
22 |
33 |
44 |
55 |
66 |
13 |
27 |
40 |
53 |
67 |
80 |
3 |
9 |
18 |
28 |
37 |
46 |
55 |
11 |
22 |
34 |
45 |
56 |
67 |
14 |
27 |
41 |
54 |
68 |
81 |
pH= 9.0 or pH> 9.0 |
||||||
Chlorine Concentration (mg/L) |
Log Inactivations |
|||||
0.5 |
1.0 |
1.5 |
2.0 |
2.5 |
3.0 |
|
<= 0.4 |
12 |
23 |
35 |
47 |
58 |
70 |
0.6 |
12 |
24 |
37 |
49 |
61 |
73 |
0.8 |
13 |
25 |
38 |
50 |
63 |
75 |
1 |
13 |
26 |
39 |
52 |
65 |
78 |
1.2 |
13 |
27 |
40 |
53 |
67 |
80 |
1.4 |
14 |
27 |
41 |
55 |
68 |
82 |
1.6 |
14 |
28 |
42 |
56 |
70 |
84 |
1.8 |
14 |
29 |
43 |
57 |
72 |
86 |
2 |
15 |
29 |
44 |
59 |
73 |
88 |
2.2 |
15 |
30 |
45 |
60 |
75 |
90 |
2.4 |
15 |
31 |
46 |
61 |
77 |
92 |
2.6 |
16 |
31 |
47 |
63 |
78 |
94 |
2.8 |
16 |
32 |
48 |
64 |
80 |
96 |
3 |
16 |
32 |
49 |
65 |
81 |
97 |
[Comment: CT99.9 = CT for 3 log inactivation.]
Table B-7
····························· Log Inactivation ····························· |
||||||
2.0 Log |
3.0 Log |
4.0 Log |
||||
Temperature (Celsius) |
pH 6-9 |
pH 10 |
pH 6-9 |
pH 10 |
pH 6-9 |
pH 10 |
0.5 |
6 |
45 |
9 |
66 |
12 |
90 |
5 |
4 |
30 |
6 |
44 |
8 |
60 |
10 |
3 |
22 |
4 |
33 |
6 |
45 |
15 |
2 |
15 |
3 |
22 |
4 |
30 |
20 |
1 |
11 |
2 |
16 |
3 |
22 |
25 |
1 |
7 |
1 |
11 |
2 |
15 |
Table B-8
CT Values for Inactivation of Giardia Cysts by Chlorine Dioxide pH 6-9
···························· Temperature (Celsius) ··························· |
||||||
Log Inactivation |
<=1 |
5 |
10 |
15 |
20 |
>=25 |
0.5 |
10 |
4.3 |
4 |
3.2 |
2.5 |
2 |
1 |
21 |
8.7 |
7.7 |
6.3 |
5 |
3.7 |
1.5 |
32 |
13 |
12 |
10 |
7.5 |
5.5 |
2 |
42 |
17 |
15 |
13 |
10 |
7.3 |
2.5 |
52 |
22 |
19 |
16 |
13 |
9 |
3 |
63 |
26 |
23 |
19 |
15 |
11 |
Table B-9
CT Values for Inactivation of Viruses
By Chlorine Dioxide pH 6-9
··························· Temperature (Celsius) ···························· |
||||||
Log Inactivation |
<=1 |
5 |
10 |
15 |
20 |
>=25 |
2 |
8.4 |
5.6 |
4.2 |
2.8 |
2.1 |
1.4 |
3 |
25.6 |
17.1 |
12.8 |
8.6 |
6.4 |
4.3 |
4 |
50.1 |
33.4 |
25.1 |
16.7 |
12.5 |
8.4 |
Table B-10
CT Values for Inactivation of Giardia Cysts
By Ozone pH 6-9
·························· Temperature (Celsius) ···························· |
||||||
Log Inactivation |
<=1 |
5 |
10 |
15 |
20 |
>=25 |
0.5 |
0.48 |
0.32 |
0.23 |
0.16 |
0.12 |
0.08 |
1 |
0.97 |
0.63 |
0.48 |
0.32 |
0.24 |
0.16 |
1.5 |
1.5 |
0.95 |
0.72 |
0.48 |
0.36 |
0.24 |
2 |
1.9 |
1.3 |
0.95 |
0.63 |
0.48 |
0.32 |
2.5 |
2.4 |
1.6 |
1.2 |
0.79 |
0.60 |
0.40 |
3 |
2.9 |
1.9 |
1.43 |
0.95 |
0.72 |
0.48 |
Table B-11
CT Values for Inactivation of Viruses by Ozone
·························· Temperature (Celsius) ······················· |
||||||
Log Inactivation |
<=1 |
5 |
10 |
15 |
20 |
>= |
2 |
0.9 |
0.6 |
0.5 |
0.3 |
0.25 |
0.15 |
3 |
1.4 |
0.9 |
0.8 |
0.5 |
0.4 |
0.25 |
4 |
1.8 |
1.2 |
1.0 |
0.6 |
0.5 |
0.3 |
Table B-12
|
|||||||||||||||||||||||||
Temperature (Celsius) |
|||||||||||||||||||||||||
Log Inactivation |
<=1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
11 |
12 |
13 |
14 |
15 |
16 |
17 |
18 |
19 |
20 |
21 |
22 |
23 |
24 |
25 |
0.5 |
635 |
568 |
500 |
433 |
365 |
354 |
343 |
332 |
321 |
310 |
298 |
286 |
274 |
262 |
250 |
237 |
224 |
211 |
198 |
185 |
173 |
161 |
149 |
137 |
125 |
1 |
1270 |
1136 |
1003 |
869 |
735 |
711 |
687 |
663 |
639 |
615 |
592 |
569 |
546 |
523 |
500 |
474 |
448 |
422 |
396 |
370 |
346 |
322 |
298 |
274 |
250 |
1.5 |
1900 |
1700 |
1500 |
1300 |
1100 |
1066 |
1032 |
998 |
964 |
930 |
894 |
858 |
822 |
786 |
750 |
710 |
670 |
630 |
590 |
550 |
515 |
480 |
445 |
410 |
375 |
2 |
2535 |
2269 |
2003 |
1736 |
1470 |
1422 |
1374 |
1326 |
1278 |
1230 |
1184 |
1138 |
1092 |
1046 |
1000 |
947 |
894 |
841 |
788 |
735 |
688 |
641 |
594 |
547 |
500 |
2.5 |
3170 |
2835 |
2500 |
2165 |
1830 |
1772 |
1714 |
1656 |
1598 |
1540 |
1482 |
1424 |
1366 |
1308 |
1250 |
1183 |
1116 |
1049 |
982 |
915 |
857 |
799 |
741 |
683 |
625 |
3 |
3800 |
3400 |
3000 |
2600 |
2200 |
2130 |
2060 |
1990 |
1920 |
1850 |
1780 |
1710 |
1640 |
1570 |
1500 |
1420 |
1340 |
1260 |
1180 |
1100 |
1030 |
960 |
890 |
820 |
750 |
Table B-13
|
|||||||||||||||||||||||||
Temperature (Celsius) |
|||||||||||||||||||||||||
Log Inactivation |
<=1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
11 |
12 |
13 |
14 |
15 |
16 |
17 |
18 |
19 |
20 |
21 |
22 |
23 |
24 |
25 |
2 |
1243 |
1147 |
1050 |
954 |
857 |
814 |
771 |
729 |
686 |
643 |
600 |
557 |
514 |
471 |
428 |
407 |
385 |
364 |
342 |
321 |
300 |
278 |
257 |
235 |
214 |
3 |
2063 |
1903 |
1743 |
1583 |
1423 |
1352 |
1281 |
1209 |
1138 |
1067 |
996 |
925 |
854 |
783 |
712 |
676 |
641 |
605 |
570 |
534 |
498 |
463 |
427 |
392 |
356 |
4 |
2883 |
2659 |
2436 |
2212 |
1988 |
1889 |
1789 |
1690 |
1590 |
1491 |
1392 |
1292 |
1193 |
1093 |
994 |
944 |
895 |
845 |
796 |
746 |
696 |
646 |
597 |
547 |
497 |
1These
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Notes
Promulgated Under: 119.03
Statutory Authority: 6109.04
Rule Amplifies: 6109.03, 6109.04
Prior Effective Dates: 01/01/2005, 01/08/2010, 10/31/2010, 10/05/2013
State regulations are updated quarterly; we currently have two versions available. Below is a comparison between our most recent version and the prior quarterly release. More comparison features will be added as we have more versions to compare.