MARYLAND DEPARTMENT OF THE ENVIRONMENT
Land Management Administration • Resource Management Program
Summary of Sewage Sludge Plant Available Nitrogen (PAN) Calculations For the CY- 2016
(Results of Sewage Sludge Analysis From 9/16/2013 to 9/15/2015 Used to calculate these rates)
Wastewater Treatment Plant
County
Sewage
Sludge
Type
Earliest
Analysis
Latest
Analysis
No. of
Analyses
Organic
Nitrogen
PAN K=1
LS
09/16/2013
07/09/2015
12
3.3664
An Dig
09/17/2013
08/01/2015
74
LS
10/01/2013
08/19/2015
LS
09/16/2013
LS
PAN K=0.5
% P2O5
% K2O
% Solid
Content
CCE
24.14
2.8148
0.2334
24.80
26.94
4.3460
33.84
6.5535
0.1253
23.07
0.00
24
3.2766
20.22
2.8310
0.5128
26.29
22.21
02/01/2015
34
3.6889
24.81
2.8541
0.1566
33.54
24.97
10/04/2013
08/21/2015
7
4.7162
30.94
4.6520
0.2822
20.86
9.75
LS
09/17/2013
07/10/2015
12
3.6376
28.01
3.4655
0.2949
18.17
26.88
LS
02/18/2014
07/20/2015
7
3.1332
22.71
3.0359
0.1968
25.66
25.81
LS
09/17/2013
07/13/2015
12
3.0117
23.10
2.3625
0.4534
31.80
24.21
LS
11/05/2013
07/01/2015
15
4.0989
26.39
4.1574
0.3904
28.15
65.26
Annapolis
Anne Arundel
Cake
Back River
Baltimore
Cake
Ballenger Creek
Frederick
Cake
Blue Plains
Outside of Maryland
Cake
Bowie
Prince George's
Cake
Broadneck
Anne Arundel
Cake
Broadwater
Anne Arundel
Cake
Cox Creek
Anne Arundel
Cake
Damascus
Montgomery
Cake
Plant Available Nitrogen (PAN) is in terms of pounds of available nitrogen per dry ton of sewage sludge. LS (Lime Stabilized), An Dig (Anaerobically Digested), Ae Dig (Aerobically Digested), Organic nitrogen (NO) is
expressed in percent of dry weight of sewage sludge, NO = TKN - NH4 - NO3 , TKN (Total Kjeldahl Nitrogen), NH4 (Ammonium), NO3 (Nitrate).
K=1 (Volatilization Factor for incorporated liquid and dewatered sewage sludge applied in any manner), K=0.5 (Volatilization Factor for surface applied liquid sewage sludge), P2O5 (% Available Phosphate), K2O (% Water
Soluble Potash), CCE (% Calcium Carbonate Equivalent, it is the neutralizing power per weight of material of the lime stabilized sewage sludge relative to pure calcium carbonate CaCO3). P2O5 = [(%TP)*2.29], while
K2O = [(%TK)*1.2], %TP (Percent Total Phosphorus), and %TK (Percent Total Potassium).
Date Printed:
9/16/2015
Page 1 of 4
Sewage
Sludge
Type
Earliest
Analysis
Latest
Analysis
No. of
Analyses
Organic
Nitrogen
PAN K=1
Cake
Ae Dig
01/27/2014
04/15/2015
4
3.8445
28.23
Liquid
Ae Dig
08/14/2014
04/15/2015
3
3.5773
36.52
LS
01/29/2014
04/15/2015
5
3.2057
An Dig
05/05/2014
05/11/2015
12
LS
10/04/2013
04/15/2015
Ae Dig
07/17/2014
Ae Dig
Ae Dig
Wastewater Treatment Plant
County
PAN K=0.5
% P2O5
% K2O
% Solid
Content
CCE
6.7956
0.1839
19.95
0.00
7.8700
0.3972
2.94
0.00
20.80
2.5190
0.1231
26.34
10.88
4.3693
36.09
5.8204
0.3290
16.00
0.00
6
3.9472
26.27
5.0724
0.2628
25.08
7.45
08/13/2015
2
7.2156
58.48
2.8053
0.4314
1.31
0.00
11/21/2014
02/26/2015
2
1.9675
14.56
3.3549
0.2216
16.50
0.00
10/16/2013
04/08/2014
4
2.6150
33.94
6.4750
0.2892
22.64
5.40
Deep Creek Lake
Garrett
34.42
Dorsey Run Advanced
Anne Arundel
Cake
Frederick
Frederick
Cake
Freedom District
Carroll
Cake
Grantsville
Garrett
Liquid
54.67
Havre de Grace
Harford
Cake
Leonardtown
St. Mary's
Cake
Little Patuxent
Howard
Cake
LS
11/18/2014
11/18/2014
1
1.5500
12.30
2.0725
0.4404
0.00
65.00
LS
09/19/2013
07/14/2015
26
2.8504
20.16
10.80
2.4341
0.4517
42.29
46.34
An Dig
10/08/2013
02/11/2014
5
3.4160
40.34
5.1067
0.1139
19.10
0.00
LS
02/17/2014
07/15/2015
7
4.0153
30.07
3.1570
0.3237
22.36
28.59
Marlay-Taylor Water Reclamation Facility
St. Mary's
Cake
Maryland City
Anne Arundel
Cake
Plant Available Nitrogen (PAN) is in terms of pounds of available nitrogen per dry ton of sewage sludge. LS (Lime Stabilized), An Dig (Anaerobically Digested), Ae Dig (Aerobically Digested), Organic nitrogen (NO) is
expressed in percent of dry weight of sewage sludge, NO = TKN - NH4 - NO3 , TKN (Total Kjeldahl Nitrogen), NH4 (Ammonium), NO3 (Nitrate).
K=1 (Volatilization Factor for incorporated liquid and dewatered sewage sludge applied in any manner), K=0.5 (Volatilization Factor for surface applied liquid sewage sludge), P2O5 (% Available Phosphate), K2O (% Water
Soluble Potash), CCE (% Calcium Carbonate Equivalent, it is the neutralizing power per weight of material of the lime stabilized sewage sludge relative to pure calcium carbonate CaCO3). P2O5 = [(%TP)*2.29], while
K2O = [(%TK)*1.2], %TP (Percent Total Phosphorus), and %TK (Percent Total Potassium).
Date Printed:
9/16/2015
Page 2 of 4
Sewage
Sludge
Type
Earliest
Analysis
Latest
Analysis
No. of
Analyses
Organic
Nitrogen
PAN K=1
LS
10/16/2013
07/08/2015
7
3.9933
26.44
Cake
LS
09/23/2013
07/14/2015
26
3.8860
26.35
Liquid
LS
03/10/2015
03/10/2015
1
4.8880
43.57
LS
01/29/2014
08/10/2015
6
3.8492
27.18
Ae Dig
09/17/2014
01/14/2015
2
8.8309
59.37
LS
09/26/2013
06/29/2015
20
2.8631
LS
10/08/2013
07/07/2015
17
LS
09/16/2013
07/15/2015
LS
02/18/2014
LS
09/17/2013
Ae Dig
Ae Dig
Wastewater Treatment Plant
County
PAN K=0.5
% P2O5
% K2O
% Solid
Content
CCE
3.3140
0.3003
22.93
7.76
3.5722
0.2256
23.30
15.38
4.1220
1.1400
0.30
0.00
4.1525
0.5974
28.33
35.60
4.5571
0.6414
1.26
0.00
20.39
2.6033
0.2418
39.48
49.81
3.2482
20.87
2.3415
0.1303
31.27
38.06
12
4.5672
32.39
3.5610
0.4302
21.40
26.96
02/18/2014
1
4.9222
30.29
3.8243
0.0486
0.00
31.00
07/21/2015
38
3.3486
20.80
3.1072
0.0482
25.93
41.64
09/23/2013
09/08/2014
5
3.7850
35.09
7.9142
0.5057
20.04
1.92
01/22/2014
01/22/2014
1
1.2000
56.60
3.8101
4.0965
11.60
0.00
Maryland Correctional Institute (MCI)
Washington
Cake
Mattawoman
Charles
36.67
Mount Airy
Carroll
Cake
Mount Saint Mary's University
Frederick
Liquid
56.69
Ocean City
Worcester
Cake
Parkway
Prince George's
Cake
Patuxent
Anne Arundel
Cake
Piscataway
Prince George's
Cake
29.92
QA 1-Kent Island
Queen Anne's
Cake
Rock Hall
Kent
Liquid
31.90
Plant Available Nitrogen (PAN) is in terms of pounds of available nitrogen per dry ton of sewage sludge. LS (Lime Stabilized), An Dig (Anaerobically Digested), Ae Dig (Aerobically Digested), Organic nitrogen (NO) is
expressed in percent of dry weight of sewage sludge, NO = TKN - NH4 - NO3 , TKN (Total Kjeldahl Nitrogen), NH4 (Ammonium), NO3 (Nitrate).
K=1 (Volatilization Factor for incorporated liquid and dewatered sewage sludge applied in any manner), K=0.5 (Volatilization Factor for surface applied liquid sewage sludge), P2O5 (% Available Phosphate), K2O (% Water
Soluble Potash), CCE (% Calcium Carbonate Equivalent, it is the neutralizing power per weight of material of the lime stabilized sewage sludge relative to pure calcium carbonate CaCO3). P2O5 = [(%TP)*2.29], while
K2O = [(%TK)*1.2], %TP (Percent Total Phosphorus), and %TK (Percent Total Potassium).
Date Printed:
9/16/2015
Page 3 of 4
Sewage
Sludge
Type
Earliest
Analysis
Latest
Analysis
No. of
Analyses
Organic
Nitrogen
PAN K=1
LS
09/17/2013
07/21/2015
38
5.5318
37.99
Ae Dig
02/04/2014
01/27/2015
2
10.5445
84.68
Cake
An Dig
09/24/2013
08/04/2015
26
4.2727
34.63
Liquid
An Dig
02/11/2014
03/04/2015
8
4.4461
41.89
Cake
Ae Dig
08/01/2014
08/01/2014
1
0.9682
18.45
Liquid
Ae Dig
01/23/2014
08/01/2014
3
5.4940
51.08
Cake
Ae Dig
03/26/2014
03/26/2014
1
5.0385
60.06
Liquid
Ae Dig
03/19/2015
03/29/2015
2
6.5432
54.19
Ae Dig
01/07/2014
03/04/2015
3
0.8523
LS
10/08/2013
12/16/2014
15
Cake
Ae Dig
05/06/2014
05/06/2014
Liquid
Ae Dig
05/05/2015
05/05/2015
Wastewater Treatment Plant
County
PAN K=0.5
% P2O5
% K2O
% Solid
Content
CCE
5.2590
0.3805
24.38
30.28
6.3985
0.5379
0.69
0.00
9.0103
0.1867
18.98
0.00
8.9310
0.2355
12.87
0.00
4.5800
0.4680
15.48
0.00
5.7250
0.5880
4.86
0.00
5.0609
0.6864
15.62
0.00
6.5494
0.9774
13.11
0.22
5.80
0.2641
0.0753
19.90
0.00
4.7825
31.43
2.0778
0.2160
26.90
10.92
1
4.0712
43.00
4.9006
0.2892
20.50
0.00
1
7.6881
57.17
5.1296
0.2076
14.70
0.00
Seneca Creek
Montgomery
Cake
Sharptown
Wicomico
Liquid
82.62
Sod Run
Harford
29.84
Taneytown
Carroll
42.15
Thurmont
Frederick
46.74
Upper Potomac River Commission/Westernport
Allegany
Cake
Valley Forge Sewage Authority
Outside of Maryland
Cake
Wicomico Shores
St. Mary's
51.70
Plant Available Nitrogen (PAN) is in terms of pounds of available nitrogen per dry ton of sewage sludge. LS (Lime Stabilized), An Dig (Anaerobically Digested), Ae Dig (Aerobically Digested), Organic nitrogen (NO) is
expressed in percent of dry weight of sewage sludge, NO = TKN - NH4 - NO3 , TKN (Total Kjeldahl Nitrogen), NH4 (Ammonium), NO3 (Nitrate).
K=1 (Volatilization Factor for incorporated liquid and dewatered sewage sludge applied in any manner), K=0.5 (Volatilization Factor for surface applied liquid sewage sludge), P2O5 (% Available Phosphate), K2O (% Water
Soluble Potash), CCE (% Calcium Carbonate Equivalent, it is the neutralizing power per weight of material of the lime stabilized sewage sludge relative to pure calcium carbonate CaCO3). P2O5 = [(%TP)*2.29], while
K2O = [(%TK)*1.2], %TP (Percent Total Phosphorus), and %TK (Percent Total Potassium).
Date Printed:
9/16/2015
Page 4 of 4