## Final BART Response 053008.doc 1 of 11 

# PNM San Juan Generating Station BART Analysis of SNCR May 30, 2008

Introduction In a letter dated April 25, 2008, the New Mexico Environmental Department – Air Quality Bureau (NMED) commented that the NO x 

# presumptive control level of 0.23 lb/MBtu for the San Juan Generating Station (SJGS) can be modified to alternative NO x 

# emission levels in order to evaluate control technologies that that are less effective and that do not meet the required presumptive emission level. Based on this reasoning, NMED requested additional analyses be pe rformed. Specifically, the NMED requested additional consideration and modeling of the Nalco-Mobotec ROFA and Rotamix, and Selective Non-Catalytic Reduction (SNCR) NO x 

# control technologies. As described in the June 6, 2007 BART application document and in PNM’s March 31, 2008 response to NMED questions, th e ROFA technology is a type of overfire air (OFA) system. As discussed in the Marc h 31, 2008 filing, ROFA do es not result in a
lower NO x 

# emission rate than the LNB/OFA system s currently being installed at SJGS. Since PNM has already evaluated the impact of LNB/OFA system as part of its previous BART submittals, no additional analyses were done for the ROFA technology. The Rotamix technology is a simply Na lco/Mobotec’s version of SNCR control technology. Therefore, it does not need to be evaluated sepa rately from other vendors of SNCR technology. For SNCR technology the first three steps of the five step BART process were completed as part of the original BART submittal on June 6. 2007. However, because SNCR did not meet the presumptive limit of 0.23 lb/MBtu for subbituminous fuel, the last two steps were not completed. To re view, the BART analysis is defined in the regional haze regulations and guidelines in 40 CFR Part 51. The following factors are considered when identifying the best method of emissions reduction:

• Technical feasibility.

• Cost of compliance.

• Energy and non-air quality environmental impacts of compliance.

• Existing pollution control equipment in use or installed at the source.

• Remaining useful life of the source.

• Degree of anticipated improvement in visibility.

## Final BART Response 053008.doc 2 of 11 

# The BART analysis consists of the following five steps to arrive at a selection of
the best methods of emissions redu ction for a BART-eligible source:

• Identify all available retrofit control technologies.

• Eliminate technically infeasible options.

• Evaluate control effectiveness of remaining control technologies.

• Evaluate impacts and document the results.

• Evaluate visibility impacts.

The two parts of this document complete the last two steps of the BART analysis for SNCR.

Part 1 - Engineering Impact Analysis An engineering impact analys is was performed for the SNCR NO x 

# control technology. The results of that impact analysis are show n in Attachment 1. Table 7-1 in Attachment 1 is an update to the Table 7- 1 found in PNM’s original BART submittal of June 6, 2007. It has been updated to include the engineering impact of SNCR. In addition to Table 7-1, Attachment 1 also in cludes the Design Concept Definitions for
SNCR and the detailed cost tables for installing SNCR on each unit at the SJGS.

Part 2 – Visibility Analysis Subsequent to the June 6, 2007 submittal, PNM further investigated additional
refinements to the BART CALPUFF air di spersion modeling analyses which included nitrate repartitioning and mo re realistic ammonia background concentrations based on monitored values at several western Class I areas. These additional modeling options are considered more realistic and therefore will again form the basis of this analysis. To date, PNM has previously submitted three BART modeling analyses. To clarify the contents of these analyses, as we ll as for this submittal, a summary of each has been provided:

June 6, 2007 Modeling analysis were performed to provide SJGS plant-wide regional haze (visibility) impacts at 16 Class I areas. The analyses were based on a constant 1 ppb background ammonia concentration a nd no nitrate repa rtitioning. The NO x 

# control technologies analyzed were the Selective Catalytic Reduction (SCR) and SNCR/SCR Hybrid.

## Final BART Response 053008.doc 3 of 11 

# November 6, 2007 Modeling analysis were performed to provide SJGS plant-wide regional haze (visibility) impacts at 16 Class I areas. The analysis was based on refinements which included using the nitrate repartitioning methodology and monthly variable background ammonia concentrations. Again, the NO x 

# control technologies analyzed were the SCR and SNCR/SCR Hybrid.

March 31, 2008 Two main modeling analyses were perfor med to provide SJGS plant-wide and unit specific regional haze (visibility) im pacts at 16 Class I areas for the SCR NO x 

# control technology only. One of the analyses, believed to be the more representative of ammonia chemistry of the area, was based on the November 6, 2007 refinements which included using th e nitrate repartitioning methodology and monthly variable background ammonia c oncentrations. The other analyses included nitrate repartitioning and a c onstant background ammonia concentration as requested by the NMED.

May 30, 2008 Two modeling analyses were performed to provide SJGS plant-wide and unit specific regional haze (visibility) impact s at 16 Class I areas for the SNCR NO x 

# control technology only. Similar to the March 31, 2008 analyses, one of the analyses was based on the November 6, 2007 refinements which included using the nitrate repartitioning methodology and monthly variable background ammonia concentrations. The other analyses incl uded nitrate repartitioning and a constant background ammonia concentration. It s hould be noted that all vendors of SNCR (including Fuel Tech and Nalco/Mobotec) have been modeled together as one technology called SNCR. This is the same approach that is used for modeling SCR control technology, where all vendors are modeled generically as SCR.

The modeling refinements contained in this submittal using nitrate repartitioning and the variable ammonia background, as well as the November 2007 and March 2008 submittals, supersedes the original June 2007 BART modeling analyses as PNM believes these analyses are more representative. Theref ore, the purpose of this section is to again, summarize the two refinements used and to provide supplemental information on the background ammonia data. Lastly, the documen t will summarize the SJGS plant-wide

## Final BART Response 053008.doc 4 of 11 

# and unit specific modeling for the SNCR co ntrol technology scenario using nitrate repartitioning and a both a variab le and constant ammonia background.

Nitrate Repartitioning The first refinement for the SJGS BART visibility analyses (included in the November 2007 submittal) was to better account for the amount of particulate nitrate (NO 3 

# ) by limiting the available ammonia when individual unit puffs overlap. The original visibility modeling conducted for the June 2, 2007 BART application did not incorporate repartitioning of available a mmonia (MNITRATE = 0). The refinements did not allow each overlapping puff(s) to use the full ammonia background value but instead only a portion of the ammonia available (MNITR ATE = 1). This concept is reflected in Section 3.1.2.6 of the WRAP protoc ol. It is important to note that this refinement noted as nitrate repartitioning is not the ammoni a limiting method commonly referred to as
ALM.

Ammonia Background Concentration
As described in Section 8.1 of the BART application, the air dispersion modeling analyses presented were conducted in accordance with the CALMET/CALPUFF Protocol for BART Exemption Screening Analysis for Class I Areas in the Western United States dated August 15, 2006, (hereinafter referred to as the WRAP Pr otocol). Specifically, the initial SJGS BART modeling for the June 6, 2007 BART Applicat ion was performed using the same high fixed background ammoni a level of 1 ppb that was used for the initial modeling performed by WRAP RMC. However, ther e is limited real-time or
historic ambient concentrati on information for ammonia within the modeling domain and
at the individual Class I areas from sources such as CASNET. As a result, there is limited information to use to verify wh ether the assumed 1 ppb ammonia background concentration is representative . In fact, colder temperatures and limited agriculture activity, among other variables, could limit the amount of ammonia present in the ambient atmosphere, thus limiting the ammoni a available to chemically react to form sulfates and nitrates to reduce visibility. Section 3.1.2.6 of WRAP prot ocol indicates that the 1 ppb value would be initially used a nd the issue revisited at a later time:

Thus, based on the fact that western Class I areas tend to be either more arid or forest land than grassland we proposed to initially use a 1 ppb background ammonia value for the CALPUFF runs. We will then revisit the background ammonia values for the Class I areas for the post processing step and provide the CALPUFF output to the States so th ey can investigate alternative background ammonia values if desired.

## Final BART Response 053008.doc 5 of 11 

# No additional information from th e WRAP regarding refined ammonia background concentrations was available. Ther efore, an investiga tion was undertaken to locate more realistic ammonia background va lues. The Sithe Global Power, LLC’s Desert Rock Energy Facility and the Toquop Energy Project visi bility analyses located in the southwestern U.S. used variable monthly background ammonia concentrations. Based on this information, refinements to SJGS’s BART modeling (included in the November 2007 and March 2008 submittals) reflected these previously used and approved values. These background ammonia con centrations are presented in Table 1 for
reference. These data were based on amm onia background concentrations monitored at several western class I areas.

Table 1 Variable Monthly Ammonia Background Concentration 1



# Month Background Ammonia Concentration (ppb) January 0.2 February 0.2

March 0.2 April 0.5 May 0.5 June 1.0 July 1.0 August 1.0 September 1.0

October 0.5 November 0.5 December 0.5
1 

# The ammonia data and supporting information for the values contained in Desert Rock Energy Facility and the Toquop Energy Project visibility analyses were included in detail in Attachment 1 of the March 31, 2008 report submittal.

Additionally, Table 2 contains a monthl y summary of actual monthly monitored ammonia data from a long term ammonia ai r monitoring study in western Wyoming. This monitoring study, located in the Uppe r Green River Basin of western Wyoming southwest of Bridge Wilderness Area, was initiated in December 2006 by Shell

## Final BART Response 053008.doc 6 of 11 

# Exploration & Production Comp any and continued for 15 months. The findings of this study were presented at the Air & Waste Ma nagement Association (AWMA) Aerosol & Atmospheric Optics: Visual Air Quality and Radiation in Moab Ut ah on May 1, 2008. The extended abstract for this presentation ha s been included as Attachment 2. As Table 2 illustrates, these monthly mean ammonia values (referenced from Figure 2 of the abstract) have the same monthly trends as the ammonia data used in PNM’s previous modeling submittals (November 2007 and March 2008 submittals). This data is representative of another western area simila r to that of northwe stern New Mexico are much less than those values currently assu med in the PNM modeli ng. In fact, the annual average ammonia value is 0.24 ppb. This data has been included for illustration purposes only and again reiterates the premise th at the 1 ppb constant ammonia value is conservatively high and not representative of actual ammonia in th e area of the SJGS.

Table 2 Monitored Variable Monthly Ammonia Background Concentration 1



# Month Background Ammonia Concentration (ppb) January < 0.1 February < 0.1

March 0.2 April 0.2 May 0.3 June 0.3 July 0.8 August 0.8 September 0.3

October 0.2 November 0.1 December < 0.1
1 

# The Wyoming ammonia data is from the extended abstract presented at the Air & Waste Management Association (AWMA) Aerosol & Atmospheric Optics: Visual Air Quality and Radiation in Moab Utah on May 1, 2008.

Visibility Summary Based on the aforementioned refinements in background ammonia concentrations and nitrate repartitioning, revised CALPUFF visibility modeling was performed for three

## Final BART Response 053008.doc 7 of 11 

# cases; pre-consent decree, consent decree (w hich represents SJGS’s BART baseline scenario), and the SNCR control technology sc enario. The modeling summarized in this report is for the SJGS on a plant-wide basis and for each of the four SJGS units on an individual unit basis. It is important to not e that all other modeling options as described in the BART application were unchanged. Fo r simplicity, the following results discuss the differences between the consent decree scenario and the SNCR scenario. The visibility modeling results ar e contained in Attachment 3.

SJGS Visibility Summary with Nitrate Repartitioning and Variable Ammonia The results of the refined visibility m odeling for the SJGS plant, assuming the same SNCR control technology is installed on a ll four units, are illustrated in Tables 1 through 4 of Attachment 3. These tables summarize the scenarios and the maximum visibility (deciview) impact s een at any of the 16 Class I areas at any time over the 2001 to 2003 period. The results of this analys is, using the aforemen tioned refinements, indicates a minimal improvement in visibility impact at each of the 16 Class I areas. The maximum visibility (deciview) impr ovement seen at any of the 16 Class I areas at any time over the 2001 to 2003 period is illustrated in Table 4 for each scenario. The expected degree of visibility improvement for each control scenario for each unit (on a plant-wide basis) was determined by the difference in the maximum visibility improvement for each receptor at each of the si xteen Class I areas. Again, it is important to note that the control technology associated with the consent decree formulated the SJGS’s baseline case, as well as the base line case for the individual unit analyses described later. Additionally, the cost-eff ectiveness for the potential BART control technologies from the BART application were used to calculate visibility improvement cost-effectiveness in $/decivi ew ($/dv). Three major scenarios are shown in the visibility improvement cost effectiveness summary in Table 4:

• Pre-consent decree to consent decree.

• Consent decree to additional SNCR NO x 

# control technology alternatives scenario.

• Pre-consent decree to additional SNCR NO x 

# control technology alternatives
scenario. These maximum visibility improvements between the consent decree and the SNCR control scenario range from 0.04 dv to 0.21 dv of expected visibility improvement above the consent decree scenario. The re sults indicate that adding additional SNCR
NO x 

# control technology beyond the consent decr ee does not yield visibility improvement greater than 0.5 dv at any Class I area. In fact, as previously noted, the maximum visibility improvement at any of the 16 class I areas is on ly 0.21 dv which is considered insignificant.

## Final BART Response 053008.doc 8 of 11 

# Based on the visibility improvement mode led and the total annual cost evaluated in the impact analysis stage of the BART a pplication document, the cost-effectiveness for visibility improvement (annual cost per improve ment in visibility, $/dv), was determined for SJGS over the aforementioned range of visi bility improvement. The resulting cost for
installation of SNCRs for al l four units ranges from $354 million/dv to $75 million/dv. Attachment 3 contains a SJGS plant-wide summary of the 98 th 

# percentile visibility impact for the three modeled technology sc enarios (i.e., Pre-Consent Decree, Consent Decree, SNCR scenarios), provides informa tion on the number of days above 0.5 dv threshold, and indicates the contribution of each pollutant associated with the 98 th 

# percentile visibility impact for each class I area.

Unit Specific Visibility Summary wit h Nitrate Repartitioning and Variable Ammonia
The results of the refined visibility modeling for Unit 1, Unit 2, Unit 3, and Unit 4 are illustrated in Tables 5-8, 9-12, 13-16, and 17-20 of Attachment 3, respectively. These
tables summarize the scenarios and the maximu m visibility (deciview) impact seen at any of the 16 Class I areas at any time over the 2001 to 2003 period. Similar to results seen for the SJGS facility, the visibility impacts at Mesa Verde represent the maximum visibility impact at any of the 16 Class I ar eas. In addition, this analysis indicates a minimal improvement in visibility impact at each of the 16 Class I areas. The maximum visibility (deciview) improve ment seen at any of the 16 Class I areas at any time over the 2001 to 2003 period is illustrated in Tables 8, 12, 16, and 20. Again, the expected degree of visibility impr ovement for each control scenario for each unit was determined by the difference in the maximum visibility improvement for each receptor at each of the sixteen Class I area s. Furthermore, the same methodology previously described for the SJGS’s cost-eff ectiveness in ($/dv) was used here for each
unit. These maximum visibility improvements between the consent decree and the SNCR control scenario for each unit are similar to that of the combined SJGS. The visibility improvements are summarized below.

• Unit 1 improvements range from 0.02 dv to 0.16 dv.

• Unit 2 improvements range from 0.02 dv to 0.16 dv

• Unit 3 improvements range from 0.02 dv to 0.15 dv

• Unit 4 improvements range from 0.0 dv to 0.15 dv

## Final BART Response 053008.doc 9 of 11 

# The results again indicate th at adding additional SNCR NO x 

# control technology beyond the consent decree does not yield visibility improvement greater than 0.5 dv at any Class I area. Based on the visibility im provement modeled and the total annual cost evaluated in the impact analysis stage of the BART applicati on document, the costeffectiveness for visibility improvement (annual cost per improvement in visibility, $/dv),
was determined for each unit for each Class I ar ea. The resulting cost for installation of
SNCRs for each unit is summarized below.

• Unit 1 cost range is $225 million/dv to $21 million/dv.

• Unit 2 cost range is $225 million/dv to $21 million/dv.

• Unit 3 cost range is $287 million/dv to $30million/dv.

• Unit 4 cost range is $2.3 billion/dv 1 

# to $29 million/dv.

Attachment 3 contains a unit specific su mmary of the 98th pe rcentile visibility impact for the three modeled technology sc enarios (i.e., Pre-Consent Decree, Consent Decree, SNCR scenarios), includes the numbe r of days above 0.5 dv threshold, and indicates the contribution of each pollutant asso ciated with the 98th percentile visibility impact for each class I area.

Visibility Summary with Nitrate R epartitioning and Constant Ammonia As previously noted, the purpose of this analyses, and the previous November 2007 and March 2008 analyses, was to perf orm visibility modeling using refined methodologies from those contained in the original BART submittal. However, PNM recognizes that NMED has previously requ ested additional visibility modeling be conducted using a constant ammonia backgr ound value of 1 ppb. While PNM does not believe analyses conducted using the c onstant ammonia background (1 ppb) is representative, analyses ha ve been conducted based on the aforementioned modeling methodology and described scenarios for both th e SJGS plant and individual units. The results of this analysis can be found in Attachment 3, Tables 21-40.
Attachment 3 also contains tables su mmarizing the modeling results, the summary of the 98 th 

# percentile visibility imp act for the three modeled technology scenarios (i.e., Pre-Consent Decree, Consent Decree, and SN CR scenarios), and the number of days above 0.5 dv threshold and the contribution of each pollutant associated with the 98 th 

# percentile visibility impact for each class I area.

1 

## The visibility improvement realized for Unit 4 is 0.002 dv but is illustrated in Attachment 3, Table 20 as 0.00 dv.

## Final BART Response 053008.doc 10 of 11 

# Additional Considerations The minimal visibility improvements discu ssed in this document for the variable ammonia case (or even the constant amm onia case) do not merit the large capital expenditure required to install SNCR. In add ition to the prohibitive cost associated with SNCR, there are other importa nt reasons that LNB, OFA and NN should be considered BART for the SJGS units. First, the LNB, OFA and NN systems being installed to meet
the consent decree are state-of -the-art combustion controls. State-of-the-art combustion controls comprising of LNB, OFA and NN technologies were used to form the basis for the BART presumptive limits for NO x 

# in the BART guidelines. Second, installation of SNCR requires ammonia to reduce NO x 

# emissions. Specifically, in a SNCR system, ammonia is injected into the boiler. Any unreacted am monia passes through the boiler
and out the stack as ammonia emissions or ammonia slip. This additional ammonia
would then be available to add to the ammonia backgroun d concentration, chemically
react to form nitrates and sulf ates, and potentially further incr ease the visibility impacts at the Class I areas. The additional ammonia slip was not considered in this analysis. Finally, the visibility results im ply that visibility is influenced more by the SJGS’s sulfur emissions than by the reduction of NO x 

# . However, sulfur emissions are not subject to BART requirements because Ne w Mexico participates in the WRAP emissions trading program. Therefore, LNB, OFA and NN should be considered BART for NO x 

# control on the SJGS units.

Conclusion As noted in this document, PNM’s furthe r investigation of additional refinements to the June 2007 BART CALPUFF air disper sion modeling analyses to yield more realistic regional haze impacts was warrant ed. These analyses included nitrate repartitioning and more realistic amm onia background concen trations based on monitored values at several western Class I areas, as well as, the additional ammonia study from western Wyoming. The conclusion of this study re-itera te and further support the overall findings of the June 2007 that in stallation of SNCR systems at the SJGS provide minimal visibility improvements and would require significant capital expenditure and modifications that will imp act many areas of the plant including boiler draft systems, air heater perf ormance, and ash handling. The results from the analyses
further substantiate that the addition of SNCR technology does not yield a benefit nor meet the intended goal of BART. Sp ecifically, these analyses indicate:

## Final BART Response 053008.doc 11 of 11 

# • The addition of SNCR technology on a plan t-wide or individual unit basis shows less than a 0.5 dv improvement for all Cla ss I areas including the four Class I areas located in New Mexico.

• Both the total annual costs evaluated and the cost-effectiveness ($/dv) are prohibitive given the minimal improvements realized.

Therefore, as previously noted, given th e minimal visibility improvement to the class I areas in the BART analysis, the r ecommended BART control for SJGS is LNB, OFA, and a NN for NO x 

# control and PJFF for PM control.

# Attachment 1PNM BART Additional NOx Technology Control Strategy ReviewLast Updated: 5/29/2008Total TotalEmission Expected Expected Expected Capital Annualized IncrementalPerformance Emission Emission Emission Investment Cost Cost Cost Energy Non-AirLevel Rate Rate Reduction (TCI) (TAC) Effectiveness Effectiveness Impacts ImpactsAll Feasible Technologies (lb/MBtu) (lb/h) (ton/yr) (ton/yr) (1,000$) (1,000$) ($/ton) ($/ton) (1,000$) (1,000$)SJGS Unit 1Selective Catalytic Reduction (SCR) 0.07 259.5 966 3,174 156,805 20,525 6,466 2,844 1,496 --SNCR/SCR Hybrid 0.18 667.3 2,484 1,656 104,436 16,207 9,786 15,490 706 1,762SNCR0.24 889.7 3,312 828 15,321 3,380 4,082 36 --SJGS Unit 2Selective Catalytic Reduction (SCR) 0.07 258.2 961 3,158 169,251 21,891 6,932 3,457 1,492 --SNCR/SCR Hybrid 0.18 663.8 2,471 1,648 108,628 16,670 10,117 16,132 346 1,762SNCR0.24 885.1 3,295 824 15,321 3,380 4,103 36 --SJGS Unit 3Selective Catalytic Reduction (SCR) 0.07 403.1 1,501 4,931 215,568 28,359 5,752 1,167 2,194 --SNCR/SCR Hybrid 0.18 1,036.4 3,859 2,572 168,507 25,606 9,954 16,335 507 2,658SNCR0.24 1,381.9 5,145 1,286 18,977 4,596 3,573 36 --SJGS Unit 4Selective Catalytic Reduction (SCR) 0.07 395.4 1,472 4,837 199,558 26,592 5,497 753 2,215 --SNCR/SCR Hybrid 0.18 1,016.8 3,786 2,524 161,572 24,849 9,846 16,050 507 2,658SNCR0.24 1,355.8 5,047 1,262 18,977 4,596 3,642 36 --Notes:1. All costs are in 2007$.2. Expected emission rates (ton/yr) calculations were based on 85 percent unit capacity factor (referer to Appendix A Design Basis).3. Expected emission reduction (ton/yr) calculations were based on the consent decree upgrades control effectiveness as shown in Table 4-1.4. TCI and TAC are referenced from Appendix C Cost Analysis Summary.5. Cost-effectiveness ($/ton) is defined as ratio of TAC over Expected Emission Reduction (ton/yr).6. Expected emission reduction is based on annual emission reduction from consent decree upgrade emission levels (Table 4-1).7. Incremental cost effectiveness are based on increments in expected emission reduction (ton/yr)Table 7-1Impact Analysis and Cost Effectiveness Results of Additional NOx Control Technologies for SJGS

# Design Concept Definition

Site Name San Juan Generating Station Units 1, 2, 3, 4 Client Name PNM Process Technology Selective Non-Catalytic Reduction

Process Description Addition of Selective Non-Catalytic Reduction (SNCR) process into boiler pendant superheat section. Generic SNCR technology considered to represent various vendor specific systems (i.e . FuelTech, Nalco-Mobotec).

Pollutant NO x (Unit 1) NO x (Unit 2) NO x (Unit 3) NO x (Unit 4) Emissions lb/MBtu 0.30 0.30 0.30 0.30 lb/h 1,112 1,106 1,727 1,695 Controlled Emissions lb/MBtu 0.24 0.24 0.24 0.24 lb/h 890 885 1,382 1,356 Inlet Flow Basis, acfm 2,082,166 2,082,819 3,205,572 3,144,890 Pressure Drop Added, in. wg None Coal Source and Type New Mexico, Subbituminous Capacity Factor 85.0%

Consumables Reagent (Urea), lb/h 906 906 1,408 1,408 Water, gpm 39 39 60 60 Energy, kW 80 80 80 80
Maintenance 3% of direct material cost. Byproduct Description No impact on ash sales. Other Up to 5 ppm ammonia slip.

Location of Major Process Equipment Truck- filled reagent storage tank, reagent circulat ion unit in enclosure with metering and distribution module, wall-injectors and multi- nozzle lances (MNL) in boiler penetrations. Inlet/Outlet Connections and Interconnecting Ducts Dilution water to metering module, atomizing air to injectors and MNL, cooli ng water for MNL.
Reagent Storage Reagent tank at grade.
Control System Modifications SNCR controls interfaced into existing control system.

Fan Modifications None.
Power Supply/Aux Power Modificati ons Minimum impact/modifications.

Enclosures Requirements Injection equipment enclosed in existing boiler building, enclosure for reagent circulation unit.

Demolition or Relocation Requirements Penetrations into boiler wall for injectors and MNL, access platforms.
Major Constructability Issues R outing of SNCR reagent supply lines.
Significant Issues or Challenges Ammonia slip may cause buildup of ammonium bisu lfate on the air heater, which may require more frequent cleaning, air heat er modifications included. Other Assumptions:

• No major impact in plant availability.

• The site has sufficient area available to accommodate construction acti vities including, but not limited to, offices, laydown, and staging.

• No boiler/duct stiffening included.

• Air heater modifications included in analysis.

• No impact on potential ash sales.

• Reagent is urea solution.

State of Availability Available.
State of Applicability Applicable.
Technical Feasibility Technically feasible. SNCR technology is generic and considered to repres ent various vendor specific systems (i.e. FuelTech, Nalco-Mobotec).

### PNM SJGS BART Analysis - Cost Analysis (Draft)

Technology: Selective Non-Catalytic Reduction - SJGS Unit 1 Date: 5/5/2008

Cost Item $ Remarks/Cost Basis

CAPITAL COST Direct Costs Purchased equipment costs SNCR system scope: $4,315,000 From vendor quote (FuelTech) Reagent delivery system Wall injectors and multiple nozzle lances Automatic injector and lance retract system Flue gas temperature monitors Reagent storage tank $100,000 B&V cost estimate NOx monitoring system $220,000 B&V cost estimate Electrical system upgrades $189,000 B&V cost estimate Instrumentation and control system $279,000 B&V cost estimate Subtotal capital cost (CC) $5,103,000 Gross Receipt Tax $315,748 (CC) X 6.2% Freight $255,150 (CC) X 5.0% Total purchased equipment cost (PEC) $5,674,000

Direct installation costs Foundation & supports $567,000 (PEC) X 10.0% Handling & erection $1,702,000 (PEC) X 30.0% Electrical $567,000 (PEC) X 10.0% Piping $142,000 (PEC) X 2.5% Insulation $0 (PEC) X 0.0% Painting $0 (PEC) X 0.0% Demolition $284,000 (PEC) X 5.0% Relocation $113,000 (PEC) X 2.0% Total direct installation costs (DIC) $3,375,000

Air preheater modifications $1,071,000 B&V cost estimate Site preparation $0 N/A Buildings $0 N/A Total direct costs (DC) = (PEC) + (DIC) $10,120,000

Indirect Costs Engineering $708,000 (DC) X 7.0% Owner's cost $506,000 (DC) X 5.0% Construction management $1,012,000 (DC) X 10.0% Start-up and spare parts $304,000 (DC) X 3.0% Performance test $100,000 (DC) X Engineering estimate Contingencies $2,024,000 (DC) X 20.0% Total indirect costs (IC) $4,654,000

Interest During Construction (IDC) $547,000 [(DC)+(IC)] X 7.41% 1 years (project time length X 1/2)

Total Capital Investment (TCI) = (DC) + (IC) + (IDC) $15,321,000

ANNUAL COST Direct Annual Costs Fixed annual costs Operating labor $125,000 1 FTE and 124,862 $/year Estimated manpower level Maintenance labor and materials $304,000 (DC) X 3.0% Total fixed annual costs $429,000

Variable annual costs Reagent $1,417,000 906 lb/hr and 420 $/ton Engineering estimate Auxiliary and ID fan power $36,000 80 kW and 0.061 $/kWh Estimate in vendor quote Water $6,000 39 gpm and 0.33 $/1,000 gal Engineering estimate Total variable annual costs $1,459,000

Total direct annual costs (DAC) $1,888,000

Indirect Annual Costs Cost for capital recovery $1,492,000 (TCI) X 9.74% CRF at 7.41% interest & 20 year life Total indirect annual costs (IDAC) $1,492,000

Total Annual Cost (TAC) = (DAC) + (IDAC) $3,380,000

### PNM SJGS BART Analysis - Cost Analysis (Draft)

Technology: Selective Non-Catalytic Reduction - SJGS Unit 2 Date: 5/5/2008

Cost Item $ Remarks/Cost Basis

CAPITAL COST Direct Costs Purchased equipment costs SNCR system scope: $4,315,000 From vendor quote (FuelTech) Reagent delivery system Wall injectors and multiple nozzle lances Automatic injector and lance retract system Flue gas temperature monitors Reagent storage tank $100,000 B&V cost estimate NOx monitoring system $220,000 B&V cost estimate Electrical system upgrades $189,000 B&V cost estimate Instrumentation and control system $279,000 B&V cost estimate Subtotal capital cost (CC) $5,103,000 Gross Receipt Tax $315,748 (CC) X 6.2% Freight $255,150 (CC) X 5.0% Total purchased equipment cost (PEC) $5,674,000

Direct installation costs Foundation & supports $567,000 (PEC) X 10.0% Handling & erection $1,702,000 (PEC) X 30.0% Electrical $567,000 (PEC) X 10.0% Piping $142,000 (PEC) X 2.5% Insulation $0 (PEC) X 0.0% Painting $0 (PEC) X 0.0% Demolition $284,000 (PEC) X 5.0% Relocation $113,000 (PEC) X 2.0% Total direct installation costs (DIC) $3,375,000

Air preheater modifications $1,071,000 B&V cost estimate Site preparation $0 N/A Buildings $0 N/A Total direct costs (DC) = (PEC) + (DIC) $10,120,000

Indirect Costs Engineering $708,000 (DC) X 7.0% Owner's cost $506,000 (DC) X 5.0% Construction management $1,012,000 (DC) X 10.0% Start-up and spare parts $304,000 (DC) X 3.0% Performance test $100,000 (DC) X Engineering estimate Contingencies $2,024,000 (DC) X 20.0% Total indirect costs (IC) $4,654,000

Interest During Construction (IDC) $547,000 [(DC)+(IC)] X 7.41% 1 years (project time length X 1/2)

Total Capital Investment (TCI) = (DC) + (IC) + (IDC) $15,321,000

ANNUAL COST Direct Annual Costs Fixed annual costs Operating labor $125,000 1 FTE and 124,862 $/year Estimated manpower level Maintenance labor and materials $304,000 (DC) X 3.0% Total fixed annual costs $429,000

Variable annual costs Reagent $1,417,000 906 lb/hr and 420 $/ton Engineering estimate Auxiliary and ID fan power $36,000 80 kW and 0.061 $/kWh Estimate in vendor quote Water $6,000 39 gpm and 0.33 $/1,000 gal Engineering estimate Total variable annual costs $1,459,000

Total direct annual costs (DAC) $1,888,000

Indirect Annual Costs Cost for capital recovery $1,492,000 (TCI) X 9.74% CRF at 7.41% interest & 20 year life Total indirect annual costs (IDAC) $1,492,000

Total Annual Cost (TAC) = (DAC) + (IDAC) $3,380,000

### PNM SJGS BART Analysis - Cost Analysis (Draft)

Technology: Selective Non-Catalytic Reduction - SJGS Unit 3 Date: 5/5/2008

Cost Item $ Remarks/Cost Basis

CAPITAL COST Direct Costs Purchased equipment costs SNCR system scope: $5,619,000 From vendor quote (FuelTech) Reagent delivery system Wall injectors and multiple nozzle lances Automatic injector and lance retract system Flue gas temperature monitors Reagent storage tank $100,000 B&V cost estimate NOx monitoring system $220,000 B&V cost estimate Electrical system upgrades $242,000 B&V cost estimate Instrumentation and control system $291,000 B&V cost estimate Subtotal capital cost (CC) $6,472,000 Gross Receipt Tax $400,455 (CC) X 6.2% Freight $323,600 (CC) X 5.0% Total purchased equipment cost (PEC) $7,196,000

Direct installation costs Foundation & supports $720,000 (PEC) X 10.0% Handling & erection $2,159,000 (PEC) X 30.0% Electrical $720,000 (PEC) X 10.0% Piping $180,000 (PEC) X 2.5% Insulation $0 (PEC) X 0.0% Painting $0 (PEC) X 0.0% Demolition $360,000 (PEC) X 5.0% Relocation $144,000 (PEC) X 2.0% Total direct installation costs (DIC) $4,283,000

Air preheater modifications $1,071,000 B&V cost estimate Site preparation $0 N/A Buildings $0 N/A Total direct costs (DC) = (PEC) + (DIC) $12,550,000

Indirect Costs Engineering $879,000 (DC) X 7.0% Owner's cost $628,000 (DC) X 5.0% Construction management $1,255,000 (DC) X 10.0% Start-up and spare parts $377,000 (DC) X 3.0% Performance test $100,000 (DC) X Engineering estimate Contingencies $2,510,000 (DC) X 20.0% Total indirect costs (IC) $5,749,000

Interest During Construction (IDC) $678,000 [(DC)+(IC)] X 7.41% 1 years (project time length X 1/2)

Total Capital Investment (TCI) = (DC) + (IC) + (IDC) $18,977,000

ANNUAL COST Direct Annual Costs Fixed annual costs Operating labor $125,000 1 FTE and 124,862 $/year Estimated manpower level Maintenance labor and materials $377,000 (DC) X 3.0% Total fixed annual costs $502,000

Variable annual costs Reagent $2,201,000 1,408 lb/hr and 420 $/ton Engineering estimate Auxiliary and ID fan power $36,000 80 kW and 0.061 $/kWh Estimate in vendor quote Water $9,000 60 gpm and 0.33 $/1,000 gal Engineering estimate Total variable annual costs $2,246,000

Total direct annual costs (DAC) $2,748,000

Indirect Annual Costs Cost for capital recovery $1,848,000 (TCI) X 9.74% CRF at 7.41% interest & 20 year life Total indirect annual costs (IDAC) $1,848,000

Total Annual Cost (TAC) = (DAC) + (IDAC) $4,596,000

### PNM SJGS BART Analysis - Cost Analysis (Draft)

Technology: Selective Non-Catalytic Reduction - SJGS Unit 4 Date: 5/5/2008

Cost Item $ Remarks/Cost Basis

CAPITAL COST Direct Costs Purchased equipment costs SNCR system scope: $5,619,000 From vendor quote (FuelTech) Reagent delivery system Wall injectors and multiple nozzle lances Automatic injector and lance retract system Flue gas temperature monitors Reagent storage tank $100,000 B&V cost estimate NOx monitoring system $220,000 B&V cost estimate Electrical system upgrades $242,000 B&V cost estimate Instrumentation and control system $291,000 B&V cost estimate Subtotal capital cost (CC) $6,472,000 Gross Receipt Tax $400,455 (CC) X 6.2% Freight $323,600 (CC) X 5.0% Total purchased equipment cost (PEC) $7,196,000

Direct installation costs Foundation & supports $720,000 (PEC) X 10.0% Handling & erection $2,159,000 (PEC) X 30.0% Electrical $720,000 (PEC) X 10.0% Piping $180,000 (PEC) X 2.5% Insulation $0 (PEC) X 0.0% Painting $0 (PEC) X 0.0% Demolition $360,000 (PEC) X 5.0% Relocation $144,000 (PEC) X 2.0% Total direct installation costs (DIC) $4,283,000

Air preheater modifications $1,071,000 B&V cost estimate Site preparation $0 N/A Buildings $0 N/A Total direct costs (DC) = (PEC) + (DIC) $12,550,000

Indirect Costs Engineering $879,000 (DC) X 7.0% Owner's cost $628,000 (DC) X 5.0% Construction management $1,255,000 (DC) X 10.0% Start-up and spare parts $377,000 (DC) X 3.0% Performance test $100,000 (DC) X Engineering estimate Contingencies $2,510,000 (DC) X 20.0% Total indirect costs (IC) $5,749,000

Interest During Construction (IDC) $678,000 [(DC)+(IC)] X 7.41% 1 years (project time length X 1/2)

Total Capital Investment (TCI) = (DC) + (IC) + (IDC) $18,977,000

ANNUAL COST Direct Annual Costs Fixed annual costs Operating labor $125,000 1 FTE and 124,862 $/year Estimated manpower level Maintenance labor and materials $377,000 (DC) X 3.0% Total fixed annual costs $502,000

Variable annual costs Reagent $2,201,000 1,408 lb/hr and 420 $/ton Engineering estimate Auxiliary and ID fan power $36,000 80 kW and 0.061 $/kWh Estimate in vendor quote Water $9,000 60 gpm and 0.33 $/1,000 gal Engineering estimate Total variable annual costs $2,246,000

Total direct annual costs (DAC) $2,748,000

Indirect Annual Costs Cost for capital recovery $1,848,000 (TCI) X 9.74% CRF at 7.41% interest & 20 year life Total indirect annual costs (IDAC) $1,848,000

Total Annual Cost (TAC) = (DAC) + (IDAC) $4,596,000

# Attachment 2

# NH 3 

# Monitoring in the Upper Green River Basin, Wyoming

Extended Abstract #70

John V. Molenar 1 

# H. James Sewell 2 

# Jeffrey Collett 3 

# Cassie Archuleta 1 

# Mark Tigges 1 

# Florian M. Schwandner 3 

# Suresh Raja 3

1 

# Air Resource Specialists, Inc., 1901 Sharp Po int Drive, Suite E, Fort Collins, CO 80525 2 

# Shell Exploration & Production Company, 4582 S. Ulster Street Parkway, Suite 500, Denver, CO 80237 3 

# Department of Atmospheric Science, Co lorado State University, Fort Collins, CO 80523-1371

Principal Contact: John V. Molenar, Vice Presiden t, Air Resource Specialists, Inc., 1901 Sharp Point Drive, Suite E, Ft. Collins, CO 80525, phone: 970-484-7941, Fax: 970- 484-3423, email: jmolenar@air-resource.com



# INTRODUCTION A long term ammonia air monitoring study was initiated in December, 2006 at Boulder, Wyoming, by Shell Exploration & Production Company. The monitoring site is located in the Upper Green River Basin of west ern Wyoming southwest of the Bridger Wilderness, a Class I area with an IM PROVE monitoring site. This region is experiencing rapid development of natural ga s resources with possi ble consequences of air quality and visibili ty impacts in the Bridger Wilderness. Only very limited short-term ammonia measurements were previously available for th is region. Thus, the primary objective of this study is to characteri ze the local airborne nitrogen budget and, specifically, ammonia concentrations and concen trations of related ga ses and particles in the basin for at least one year. Gaseous and particulate samples were collected twice per week (integrated 3-day and 4-day samp les) beginning December 15, 2006 and will continue through May, 2008. Samples were coll ected using coated annular denuders and stacked filters in a University Research Gl assworks (URG) sampler. The Colorado State University Atmospheric Science Department provided laboratory-pre pared sample media and laboratory analysis for gas and part icle concentrations. Standard operating procedures, technical instruc tions, and a QAPP for instrume nt installation, operation and maintenance, field sampling, filter handling, a nd laboratory analyses were developed and submitted to Wyoming Department of Envir onmental Quality – Air Quality Division.

# MONITORING AND LABO RATORY PROCEDURES Table 1 lists the instrumentation used and pa rameters monitored for the Boulder station ammonia study. Scheduled denuder and filter ch anges were performed twice per week, providing three- to four-day integrated sa mples for the duration of the study period. Ammonia concentrations and the concentratio ns of related gases and particles were measured using coated annular denuders and stacked filters in a University Research Glassworks (URG) sampler. The Colorado State University Atmospheric Science Department provided laboratory-prepared samp le media and laboratory analysis for gas and particle concentrations. The two-channe l sampler operated con tinuously, the air flow being controlled by a programmable pump w ith a mass flow sensor, and subsequent volumetric gas flow meters. The sampling me thod requires that metered air is drawn through a PM 2.5 

# size selective cyclone inlet, then th rough a series of annular denuders and filters. The denuders are coated with an acid- based substrate to collect ammonia gas. A second denuder is coated with NaCl to collect gaseous nitric acid. A subsequent stack of two filters is utilized to collect particles. A nylon filter collects pa rticles, and a second, acid-coated filter collects any ammonia vol atilized from collected, semi-volatile ammonium nitrate particles. The nylon filter retains any nitric acid volatilized from particulate ammonium nitrate. Following fi eld exposure, the denuders, filters, and field data logs are sent to the CSU lab for chemi cal extraction and analysis. Total sampler air volume from the data sheet is then us ed to calculate c oncentrations.

Table 1: Instrumentation and Monitored Parameters Boulder, Wyoming Air Quality Station

Component Instrumentation Height Frequency Parameters

GASEOUS URG denuders 1.5m 3-day and 4- day integrated samples Ammonia, NH 3 

# Nitric Acid, HNO 3



# PARTICULATE URG stacked filters 1.5m 3-day and 4- day integrated samples Ammonium, NH 4 + 

# Nitrate, NO 3 - 

# Sulfate, SO 4 2-



# RESULTS Figure 1 shows a timeline of gaseous and pa rticulate concentrations from December, 2006 – January, 2008. Figure 2 plots the monthl y mean, standard deviation, minimum, and maximum NH 3 

# concentrations. NH 3 

# concentrations are below 1 ppbv for most of the monitoring period, peaking in A ugust, 2007 at 1.55 ppbv. Elevated NH 3 

# concentrations here coincide with warmer summer months. A shift in ammonium nitrate equilibrium toward the gas phase might be responsible for some of this increase, although an increase in total reduced nitrogen (ammonium + am monia) during the summer suggests that changes in emissions and or transport patter ns are likely also im portant contributors.

# Figure 1: Timeline of measured concentrations.

0.0 0.5 1.0 1.5 2.012/1512/2212/291/51/121/191/262/22/92/162/233/23/93/163/233/304/64/134/204/275/45/115/185/256/16/86/156/226/297/67/137/207/278/38/108/178/248/319/79/149/219/2810/510/1210/1910/2611/211/911/1611/2311/3012/712/1412/2112/281/41/111/18

date 2006-2008 NH3 (g) NH4 + (p) HNO3 (g) NO3 - (p) SO4 2- (p)g m-3ion / uconcentrat



# Figure 2: 2007 monthly and annual NH 3 

# concentration data

Three events stand out: high particulate NO 3 - 

# in January, 2007; high particulate NO 3 - 

# in December, 2007 – January, 2008; and high particulate SO 4 -2 

# in May, 2007. The winter nitrate events are interesti ng as all reduced nitrogen is present as particle phase ammonium while considerable nitric acid rema ins in the gas phase. Sufficient increases in ammonia emissions during this period could have substantially increased PM 2.5 

# concentrations by further a mmonium nitrate formation.

Figure 3 displays a timeline of the gas/partic le partitioning of the measured species for the same time period. Particulate sulfate (r ed) dominates throughout most of the year. Reduced nitrogen (green bars) shows an increased partitioning into the gas phase

# (ammonium to ammonia). Increased particulate n itrate in late winter is consistent with thermodynamic expectations: ammonium n itrate formation is favored at lower temperatures and higher relative humidities.

Figure 3: Timeline of gas-particle part itioning. Concentrations in μ g/m 3 

# , top bar stack for particles, botto m bar stack for gases.

gas-particle partitioning

-2 -1 0 1 2 312/1512/291/121/262/92/233/93/234/64/205/45/186/16/156/297/137/278/108/249/79/2110/510/1911/211/1611/3012/1412/281/111/25 start dateconcentration / ug m-3 NH4 + (p) NO3 - (p) SO4 2- (p) NH3 (g) HNO3 (g)

PM

GAS



# RESIDENCE TIME ANALYSIS Ammonia weighted back traject ories were used to identify the geographic source areas most likely to contribute to the highest measur ed ammonia days. Back trajectory analyses use interpolated measured or modeled meteor ological fields to estimate the most likely central path over geographical ar eas that provided air to a rece ptor at a given time. The method essentially follows a parcel of air back ward in hourly steps for a specified length of time. Back trajectories account for the impact of wind direction and wind speed on delivery of emissions to the receptor, but do not account for chemical transformation, dispersion and deposition of emissions.

Trajectories were generated using the Hybrid-Single Partic le Lagrangian Integrated Trajectory (HYSPLIT) model developed by the National Oceanic and Atmospheric Administration’s (NOAA) Air Resources Labo ratory (ARL). Detailed information regarding the trajectory m odel and these data sets can be found on NOAA’s Web site ( http://www.arl.noaa.gov/ready/hysplit4.html ).

Three back trajectories we re generated per day, includ ing end times of 0400, 1200 and 2000 MST and end heights of 100 m. Each hour ly point along a 72-hour back trajectory paths was weighted with measured ammonia concentration correspond ing to the end date of each trajectory. The ammonia values a ssociated with each hourly point were then summed and normalized into 1/4 degree horizontal grid cells of latitude and longitude.

Figure 4 presents a map of the ammonia weight ed residence time for 2007. One path of influence follows the Snake River from Idaho to the Columbia River. This is a significant

# agriculture region. Another di stinct path is from the South-Southwest along I-15 to Nevada then along the Colorado River. In addi tion to the major urban areas of Salt Lake City and Las Vegas, this pathway includes the agriculture regions of Star Valley north of Salt Lake City, the Wasatch front in Utah, and the Colorado River Basin.

Figure 4: NH 3 

# weighted residence time analysis for 2007.



# SUMMARY A 15 month study in the Upper Green River Basin of Wyoming m easuring ammonia and nitric acid gasses and ammoni um, nitrate, and sulfate par ticles has been completed. The results of the study show that in the Upper Green River Basin of Wyoming 2007 ammonia concentrations are (1) quite variable throughout the year, (2 ) are below or near detectable limits from December through late February, (3) peak in August at 1.55 ppbv, and (4) have a yearly mean value of 0.24 ppbv. NH 3 

# weighted Residence time analysis indicates that much of the NH 3 

# present is transported into the region from agriculture and urban areas to the West and Southwest.

# Attachment 3 – Results Tables Page 1 of 41 

# Attachment 3

# Attachment 3 – Results Tables Page 2 of 41 Table 1 SJGS Pre-Consent Decree Modeling Results Variable Ammonia Background and Nitrate Repartitioning 98th Percentile Impact for Each Year (dv)

Class I Area 2001 2002 2003 Average Maximum

Arches 1.92 1.76 1.82 1.83 1.92 Bandelier 1.31 1.86 1.51 1.56 1.86 Black Canyon 1.14 1.34 1.40 1.29 1.40 Canyonlands 2.59 2.04 2.00 2.21 2.59 Capitol Reef 1.97 1.16 1.34 1.49 1.97 Grand Canyon 1.14 0.93 0.81 0.96 1.14 Great Sand Dunes 0.85 1.00 0.82 0.89 1.00 La Garita 1.15 1.30 1.14 1.20 1.30 Maroon Bells 0.67 0.78 0.63 0.70 0.78 Mesa Verde 4.20 4.09 4.85 4.38 4.85 Pecos 1.40 1.33 1.26 1.33 1.40 Petrified Forest 1.13 0.79 0.74 0.88 1.13 San Pedro 1.78 2.37 1.96 2.04 2.37 West Elk 0.99 1.15 0.94 1.03 1.15 Weminuche 1.51 1.85 1.69 1.69 1.85 Wheeler Peak 1.00 0.95 1.05 1.00 1.05 Overall 1.53 4.85

# Attachment 3 – Results Tables Page 3 of 41 Table 2 Baseline (Consent Decree) Visibility Modeling Results SJGS Variable Ammonia Background and Nitrate Repartitioning 98th Percentile for Each Year (dv) Class I Area 2001 2002 2003 Average Maximum
Arches 1.69 1.65 1.49 1.61 1.69 Bandelier 1.04 1.56 1.20 1.27 1.56 Black Canyon 0.95 1.15 1.07 1.05 1.15 Canyonlands 2.26 1.73 1.68 1.89 2.26 Capitol Reef 1.81 0.82 1.05 1.23 1.81 Grand Canyon 0.97 0.76 0.57 0.77 0.97 Great Sand Dunes 0.63 0.71 0.64 0.66 0.71 La Garita 0.86 0.94 0.90 0.90 0.94 Maroon Bells 0.54 0.56 0.51 0.54 0.56 Mesa Verde 3.38 3.53 3.80 3.57 3.80 Pecos 1.05 1.09 1.00 1.05 1.09 Petrified Forest 0.82 0.60 0.53 0.65 0.82 San Pedro 1.40 2.01 1.56 1.66 2.01 West Elk 0.80 0.91 0.83 0.85 0.91 Weminuche 1.15 1.48 1.34 1.33 1.48 Wheeler Peak 0.75 0.86 0.89 0.83 0.89 Overall 1.24 3.80

# Attachment 3 – Results Tables Page 4 of 41 Table 3 SNCR Visibility Modeling Results Variable Ammonia Background and Nitrate Repartitioning 98th Percentile Impact for Each Year (dv) Class I Area 2001 2002 2003 Average Maximum
Arches 1.61 1.50 1.27 1.46 1.61 Bandelier 0.92 1.37 1.15 1.14 1.37 Black Canyon 0.84 1.00 0.97 0.94 1.00 Canyonlands 2.15 1.61 1.61 1.79 2.15 Capitol Reef 1.64 0.72 1.00 1.12 1.64 Grand Canyon 0.85 0.65 0.57 0.69 0.85 Great Sand Dunes 0.58 0.62 0.52 0.57 0.62 La Garita 0.76 0.80 0.78 0.78 0.80 Maroon Bells 0.51 0.48 0.44 0.48 0.51 Mesa Verde 3.36 3.22 3.58 3.38 3.58 Pecos 0.90 0.94 0.91 0.91 0.94 Petrified Forest 0.77 0.54 0.50 0.61 0.77 San Pedro 1.31 1.80 1.48 1.53 1.80 West Elk 0.74 0.77 0.71 0.74 0.77 Weminuche 1.03 1.35 1.16 1.18 1.35 Wheeler Peak 0.68 0.77 0.75 0.74 0.77 Overall 1.13 3.58Attachment 3 – Results Tables Page 5 of 41Table 4SJGS Visibility Improvement Cost Effectiveness for Each Class 1 Area (Based on Maximum Visibility Modeling Results)Variable Ammonia Background and Nitrate RepartitioningMaximum Visibility Modeling Results (dv) Visibility Improvements (dv) Improvement ($/dv)(98th Percentile, see Note 1)Calculated from Maximum Visibility Results (foreach Class 1 Area) (see Note 4)Class 1 AreaPre-ConsentDecree Consent Decree SNCRPre-ConsentDecree toConsent DecreeConsent Decreeto SNCRPre-ConsentDecree to SNCRPre-ConsentDecree to ConsentDecreeConsent Decree toSNCRPre-ConsentDecree to SNCRArches1.92 1.69 1.61 0.23 0.08 0.31 224,751,092 207,168,831 220,326,797Bandelier1.86 1.56 1.37 0.31 0.19 0.50 167,648,208 83,957,895 135,653,924Black Canyon1.40 1.15 1.00 0.26 0.15 0.41 201,835,294 105,642,384 166,059,113Canyonlands2.59 2.26 2.15 0.33 0.12 0.44 158,363,077 136,341,880 152,533,937Capitol Reef1.97 1.81 1.64 0.16 0.17 0.33 319,677,019 93,835,294 203,685,801Grand Canyon1.14 0.97 0.85 0.17 0.12 0.29 304,544,379 135,186,441 234,912,892Great Sand Dunes1.00 0.71 0.62 0.29 0.09 0.38 179,331,010 181,272,727 179,786,667La Garita1.30 0.94 0.80 0.36 0.14 0.50 142,966,667 113,942,857 134,840,000Maroon Bells0.78 0.56 0.51 0.22 0.05 0.27 236,091,743 295,407,407 247,867,647Mesa Verde4.85 3.80 3.58 1.06 0.21 1.27 48,692,526 74,542,056 53,044,847Pecos1.40 1.09 0.94 0.31 0.16 0.46 168,196,078 100,962,025 145,301,724Petrified Forest1.13 0.82 0.77 0.31 0.04 0.36 165,491,961 354,488,889 189,382,022San Pedro2.37 2.01 1.80 0.36 0.21 0.57 142,966,667 75,245,283 117,867,133West Elk1.15 0.91 0.77 0.24 0.14 0.38 216,252,101 112,338,028 177,421,053Weminuche1.85 1.48 1.35 0.37 0.13 0.50 138,727,763 119,939,850 133,769,841Wheeler Peak1.05 0.89 0.77 0.16 0.13 0.29 323,698,113 126,603,175 236,561,404Notes:1. Maximum of 2001, 2002 and 2003 visibility data.2. NI = No Improvement3. NA = Not Applicable4. Total Annualized Costs used in calculating Improvement are as follows (in $1,000):Pre-Consent Decree to Consent Decree $51,468Consent Decree to SNCR $15,952Pre-Consent Decree to SNCR $67,420

# Attachment 3 – Results Tables Page 6 of 41 Table 5 Pre-Consent Decree Modeling Results - Unit 1 Variable Ammonia Background and Nitrate Repartitioning 98th Percentile Impact for Each Year (dv)

Class I Area 2001 2002 2003 Average Maximum

Arches 0.82 0.68 0.60 0.70 0.82 Bandelier 0.31 0.49 0.54 0.45 0.54 Black Canyon 0.35 0.37 0.38 0.37 0.38 Canyonlands 1.10 0.84 0.71 0.88 1.10 Capitol Reef 0.76 0.23 0.32 0.44 0.76 Grand Canyon 0.31 0.21 0.16 0.23 0.31 Great Sand Dunes 0.18 0.20 0.17 0.18 0.20 La Garita 0.26 0.28 0.29 0.28 0.29 Maroon Bells 0.18 0.16 0.16 0.17 0.18 Mesa Verde 1.51 1.79 1.67 1.66 1.79 Pecos 0.29 0.31 0.35 0.32 0.35 Petrified Forest 0.25 0.16 0.14 0.18 0.25 San Pedro 0.61 0.73 0.63 0.66 0.73 West Elk 0.27 0.28 0.25 0.27 0.28 Weminuche 0.37 0.54 0.45 0.45 0.54 Wheeler Peak 0.24 0.25 0.26 0.25 0.26 Overall 0.47 1.79

# Attachment 3 – Results Tables Page 7 of 41 Table 6 Baseline (Consent Decree) Visibi lity Modeling Results - Unit 1 Variable Ammonia Background and Nitrate Repartitioning 98th Percentile for Each Year (dv) Class I Area 2001 2002 2003 Average Maximum

Arches 0.69 0.54 0.52 0.58 0.69 Bandelier 0.24 0.40 0.37 0.34 0.40 Black Canyon 0.29 0.29 0.28 0.29 0.29 Canyonlands 1.00 0.65 0.57 0.74 1.00 Capitol Reef 0.57 0.18 0.23 0.33 0.57 Grand Canyon 0.27 0.16 0.12 0.18 0.27 Great Sand Dunes 0.14 0.14 0.14 0.14 0.14 La Garita 0.19 0.21 0.21 0.20 0.21 Maroon Bells 0.14 0.12 0.11 0.12 0.14 Mesa Verde 1.35 1.40 1.27 1.34 1.40 Pecos 0.23 0.24 0.27 0.25 0.27 Petrified Forest 0.19 0.13 0.11 0.14 0.19 San Pedro 0.44 0.59 0.50 0.51 0.59 West Elk 0.22 0.20 0.20 0.21 0.22 Weminuche 0.31 0.43 0.35 0.36 0.43 Wheeler Peak 0.19 0.17 0.20 0.19 0.20 Overall 0.37 1.40

# Attachment 3 – Results Tables Page 8 of 41 Table 7 SNCR Visibility Modeling Results - Unit 1 Variable Ammonia Background and Nitrate Repartitioning 98th Percentile Impact for Each Year (dv)

Class I Area 2001 2002 2003 Average Maximum
Arches 0.58 0.44 0.45 0.49 0.58 Bandelier 0.20 0.33 0.30 0.28 0.33 Black Canyon 0.23 0.23 0.23 0.23 0.23 Canyonlands 0.87 0.53 0.49 0.63 0.87 Capitol Reef 0.46 0.15 0.21 0.27 0.46 Grand Canyon 0.22 0.14 0.12 0.16 0.22 Great Sand Dunes 0.12 0.13 0.12 0.12 0.13 La Garita 0.16 0.17 0.17 0.17 0.17 Maroon Bells 0.11 0.10 0.09 0.10 0.11 Mesa Verde 1.19 1.24 1.13 1.19 1.24 Pecos 0.19 0.21 0.23 0.21 0.23 Petrified Forest 0.17 0.11 0.10 0.13 0.17 San Pedro 0.36 0.48 0.43 0.42 0.48 West Elk 0.18 0.16 0.17 0.17 0.18 Weminuche 0.25 0.36 0.30 0.31 0.36 Wheeler Peak 0.16 0.14 0.18 0.16 0.18 Overall 0.31 1.24Attachment 3 – Results Tables Page 9 of 41Table 8Unit 1 Visibility Improvement Cost Effectiveness for Each Class 1 Area (Based on Maximum Visibility Modeling Results)Variable Ammonia Background and Nitrate RepartitioningMaximum Visibility Modeling Results (dv) Visibility Improvements (dv) Improvement ($/dv)(98th Percentile, see Note 1)Calculated from Maximum Visibility Results (foreach Class 1 Area) (see Note 4)Class 1 AreaPre-ConsentDecree Consent Decree SNCRPre-ConsentDecree toConsent DecreeConsent Decreeto SNCRPre-ConsentDecree to SNCRPre-ConsentDecree to ConsentDecreeConsent Decree toSNCRPre-ConsentDecree to SNCRArches0.82 0.69 0.58 0.13 0.11 0.24 91,146,154 29,649,123 62,413,934Bandelier0.54 0.40 0.33 0.14 0.07 0.21 84,635,714 46,301,370 71,497,653Black Canyon0.38 0.29 0.23 0.09 0.06 0.15 131,655,556 55,409,836 100,854,305Canyonlands1.10 1.00 0.87 0.10 0.13 0.23 118,490,000 26,000,000 66,213,043Capitol Reef0.76 0.57 0.46 0.19 0.11 0.30 62,363,158 30,727,273 50,763,333Grand Canyon0.31 0.27 0.22 0.04 0.05 0.09 296,225,000 66,274,510 167,351,648Great Sand Dunes0.20 0.14 0.13 0.06 0.02 0.08 197,483,333 225,333,333 203,053,333La Garita0.29 0.21 0.17 0.08 0.04 0.12 148,112,500 93,888,889 131,284,483Maroon Bells0.18 0.14 0.11 0.04 0.03 0.07 296,225,000 120,714,286 223,955,882Mesa Verde1.79 1.40 1.24 0.39 0.16 0.55 30,382,051 21,257,862 27,739,526Pecos0.35 0.27 0.23 0.08 0.04 0.12 148,112,500 93,888,889 131,284,483Petrified Forest0.25 0.19 0.17 0.06 0.02 0.08 197,483,333 140,833,333 181,297,619San Pedro0.73 0.59 0.48 0.14 0.11 0.25 84,635,714 29,911,504 60,193,676West Elk0.28 0.22 0.18 0.06 0.04 0.10 197,483,333 88,947,368 155,397,959Weminuche0.54 0.43 0.36 0.11 0.07 0.18 107,718,182 51,212,121 86,528,409Wheeler Peak0.26 0.20 0.18 0.06 0.03 0.09 197,483,333 135,200,000 179,164,706Notes:1. Maximum of 2001, 2002 and 2003 visibility data.2. NI = No Improvement3. NA = Not Applicable4. Total Annualized Costs used in calculating Improvement are as follows (in $1,000):Pre-Consent Decree to Consent Decree $11,849Consent Decree to SNCR $3,380Pre-Consent Decree to SNCR $15,229

# Attachment 3 – Results Tables Page 10 of 41 Table 9 Pre-Consent Decree Modeling Results - Unit 2 Variable Ammonia Background and Nitrate Repartitioning 98th Percentile Impact for Each Year (dv)

Class I Area 2001 2002 2003 Average Maximum

Arches 0.83 0.64 0.58 0.68 0.83 Bandelier 0.32 0.50 0.54 0.45 0.54 Black Canyon 0.36 0.37 0.39 0.37 0.39 Canyonlands 1.07 0.83 0.72 0.87 1.07 Capitol Reef 0.78 0.23 0.31 0.44 0.78 Grand Canyon 0.31 0.20 0.16 0.22 0.31 Great Sand Dunes 0.19 0.21 0.17 0.19 0.21 La Garita 0.26 0.29 0.29 0.28 0.29 Maroon Bells 0.18 0.16 0.16 0.17 0.18 Mesa Verde 1.49 1.82 1.66 1.66 1.82 Pecos 0.29 0.31 0.36 0.32 0.36 Petrified Forest 0.25 0.16 0.14 0.18 0.25 San Pedro 0.63 0.73 0.64 0.67 0.73 West Elk 0.27 0.29 0.26 0.27 0.29 Weminuche 0.38 0.56 0.44 0.46 0.56 Wheeler Peak 0.24 0.26 0.26 0.25 0.26 Overall 0.47 1.82

# Attachment 3 – Results Tables Page 11 of 41 Table 10 Baseline (Consent Decree) Visibi lity Modeling Results - Unit 2 Variable Ammonia Background and Nitrate Repartitioning 98th Percentile for Each Year (dv) Class I Area 2001 2002 2003 Average Maximum

Arches 0.69 0.54 0.52 0.58 0.69 Bandelier 0.23 0.40 0.37 0.33 0.40 Black Canyon 0.28 0.29 0.28 0.28 0.29 Canyonlands 0.99 0.65 0.57 0.74 0.99 Capitol Reef 0.57 0.18 0.23 0.33 0.57 Grand Canyon 0.27 0.16 0.12 0.18 0.27 Great Sand Dunes 0.14 0.14 0.14 0.14 0.14 La Garita 0.19 0.21 0.21 0.20 0.21 Maroon Bells 0.14 0.11 0.11 0.12 0.14 Mesa Verde 1.35 1.40 1.26 1.34 1.40 Pecos 0.23 0.24 0.27 0.25 0.27 Petrified Forest 0.19 0.13 0.11 0.14 0.19 San Pedro 0.44 0.58 0.50 0.51 0.58 West Elk 0.22 0.20 0.20 0.21 0.22 Weminuche 0.31 0.42 0.35 0.36 0.42 Wheeler Peak 0.18 0.17 0.20 0.18 0.20 Overall 0.37 1.40

# Attachment 3 – Results Tables Page 12 of 41 Table 11 SNCR Visibility Modeling Results - Unit 2 Variable Ammonia Background and Nitrate Repartitioning 98th Percentile Impact for Each Year (dv)

Class I Area 2001 2002 2003 Average Maximum
Arches 0.57 0.44 0.44 0.48 0.57 Bandelier 0.20 0.33 0.30 0.28 0.33 Black Canyon 0.23 0.23 0.22 0.23 0.23 Canyonlands 0.87 0.52 0.48 0.62 0.87 Capitol Reef 0.46 0.15 0.21 0.27 0.46 Grand Canyon 0.22 0.14 0.12 0.16 0.22 Great Sand Dunes 0.12 0.13 0.12 0.12 0.13 La Garita 0.16 0.17 0.17 0.17 0.17 Maroon Bells 0.11 0.10 0.09 0.10 0.11 Mesa Verde 1.19 1.24 1.13 1.18 1.24 Pecos 0.19 0.21 0.23 0.21 0.23 Petrified Forest 0.17 0.11 0.10 0.12 0.17 San Pedro 0.36 0.48 0.43 0.42 0.48 West Elk 0.18 0.16 0.17 0.17 0.18 Weminuche 0.25 0.36 0.30 0.31 0.36 Wheeler Peak 0.16 0.14 0.17 0.16 0.17 Overall 0.31 1.24Attachment 3 – Results Tables Page 13 of 41Table 12Unit 2 Visibility Improvement Cost Effectiveness for Each Class 1 Area (Based on Maximum Visibility Modeling Results)Variable Ammonia Background and Nitrate RepartitioningMaximum Visibility Modeling Results (dv) Visibility Improvements (dv) Improvement ($/dv)(98th Percentile, see Note 1)Calculated from Maximum Visibility Results (foreach Class 1 Area) (see Note 4)Class 1 AreaPre-ConsentDecree Consent Decree SNCRPre-ConsentDecree toConsent DecreeConsent Decreeto SNCRPre-ConsentDecree to SNCRPre-ConsentDecree to ConsentDecreeConsent Decree toSNCRPre-ConsentDecree to SNCRArches0.83 0.69 0.57 0.14 0.12 0.26 86,728,571 28,888,889 60,396,887Bandelier0.54 0.40 0.33 0.14 0.08 0.22 86,728,571 45,066,667 72,195,349Black Canyon0.39 0.29 0.23 0.10 0.06 0.16 121,420,000 53,650,794 95,226,994Canyonlands1.07 0.99 0.87 0.08 0.12 0.20 151,775,000 27,258,065 76,088,235Capitol Reef0.78 0.57 0.46 0.21 0.11 0.32 57,819,048 30,178,571 48,204,969Grand Canyon0.31 0.27 0.22 0.04 0.05 0.09 303,550,000 65,000,000 168,717,391Great Sand Dunes0.21 0.14 0.13 0.07 0.02 0.09 173,457,143 225,333,333 182,611,765La Garita0.29 0.21 0.17 0.08 0.04 0.12 151,775,000 91,351,351 132,666,667Maroon Bells0.18 0.14 0.11 0.04 0.03 0.07 303,550,000 120,714,286 228,264,706Mesa Verde1.82 1.40 1.24 0.42 0.16 0.58 28,909,524 20,609,756 26,578,767Pecos0.36 0.27 0.23 0.09 0.04 0.13 134,911,111 88,947,368 121,265,625Petrified Forest0.25 0.19 0.17 0.06 0.03 0.09 202,366,667 135,200,000 182,611,765San Pedro0.73 0.58 0.48 0.15 0.11 0.26 80,946,667 32,190,476 60,870,588West Elk0.29 0.22 0.18 0.07 0.04 0.11 173,457,143 86,666,667 142,403,670Weminuche0.56 0.42 0.36 0.14 0.06 0.20 86,728,571 59,298,246 78,791,878Wheeler Peak0.26 0.20 0.17 0.06 0.03 0.09 202,366,667 130,000,000 180,488,372Notes:1. Maximum of 2001, 2002 and 2003 visibility data.2. NI = No Improvement3. NA = Not Applicable4. Total Annualized Costs used in calculating Improvement are as follows (in $1,000):Pre-Consent Decree to Consent Decree $12,142Consent Decree to SNCR $3,380Pre-Consent Decree to SNCR $15,522

# Attachment 3 – Results Tables Page 14 of 41 Table 13 Pre-Consent Decree Modeling Results - Unit 3 Variable Ammonia Background and Nitrate Repartitioning 98th Percentile Impact for Each Year (dv)

Class I Area 2001 2002 2003 Average Maximum

Arches 1.04 0.81 0.72 0.86 1.04 Bandelier 0.53 0.81 0.71 0.68 0.81 Black Canyon 0.58 0.53 0.59 0.57 0.59 Canyonlands 1.44 1.04 0.96 1.15 1.44 Capitol Reef 1.10 0.38 0.52 0.67 1.10 Grand Canyon 0.48 0.33 0.26 0.36 0.48 Great Sand Dunes 0.28 0.33 0.27 0.29 0.33 La Garita 0.40 0.44 0.43 0.42 0.44 Maroon Bells 0.24 0.25 0.25 0.25 0.25 Mesa Verde 1.92 2.18 2.14 2.08 2.18 Pecos 0.48 0.52 0.58 0.53 0.58 Petrified Forest 0.43 0.25 0.24 0.31 0.43 San Pedro 0.88 1.03 0.88 0.93 1.03 West Elk 0.38 0.42 0.38 0.39 0.42 Weminuche 0.59 0.82 0.65 0.69 0.82 Wheeler Peak 0.37 0.39 0.37 0.38 0.39 Overall 0.66 2.18

# Attachment 3 – Results Tables Page 15 of 41 Table 14 Baseline (Consent Decree) Visibi lity Modeling Results - Unit 3 Variable Ammonia Background and Nitrate Repartitioning 98th Percentile for Each Year (dv) Class I Area 2001 2002 2003 Average Maximum

Arches 0.89 0.65 0.66 0.73 0.89 Bandelier 0.39 0.57 0.61 0.52 0.61 Black Canyon 0.44 0.41 0.46 0.44 0.46 Canyonlands 1.15 0.85 0.79 0.93 1.15 Capitol Reef 0.86 0.26 0.36 0.49 0.86 Grand Canyon 0.35 0.24 0.19 0.26 0.35 Great Sand Dunes 0.21 0.24 0.21 0.22 0.24 La Garita 0.29 0.33 0.33 0.32 0.33 Maroon Bells 0.20 0.18 0.18 0.19 0.20 Mesa Verde 1.56 1.90 1.74 1.73 1.90 Pecos 0.35 0.36 0.42 0.38 0.42 Petrified Forest 0.29 0.18 0.17 0.21 0.29 San Pedro 0.70 0.81 0.72 0.74 0.81 West Elk 0.30 0.33 0.35 0.33 0.35 Weminuche 0.44 0.64 0.50 0.53 0.64 Wheeler Peak 0.28 0.31 0.28 0.29 0.31 Overall 0.52 1.90

# Attachment 3 – Results Tables Page 16 of 41 Table 15 SNCR Visibility Modeling Results - Unit 3 Variable Ammonia Background and Nitrate Repartitioning 98th Percentile Impact for Each Year (dv)

Class I Area 2001 2002 2003 Average Maximum
Arches 0.79 0.54 0.55 0.63 0.79 Bandelier 0.32 0.50 0.50 0.44 0.50 Black Canyon 0.36 0.33 0.38 0.36 0.38 Canyonlands 1.01 0.71 0.68 0.80 1.01 Capitol Reef 0.71 0.23 0.33 0.42 0.71 Grand Canyon 0.28 0.20 0.18 0.22 0.28 Great Sand Dunes 0.18 0.20 0.17 0.18 0.20 La Garita 0.26 0.28 0.27 0.27 0.28 Maroon Bells 0.16 0.16 0.14 0.15 0.16 Mesa Verde 1.50 1.75 1.59 1.61 1.75 Pecos 0.29 0.30 0.36 0.32 0.36 Petrified Forest 0.27 0.17 0.16 0.20 0.27 San Pedro 0.59 0.67 0.61 0.62 0.67 West Elk 0.25 0.27 0.28 0.27 0.28 Weminuche 0.36 0.54 0.41 0.44 0.54 Wheeler Peak 0.22 0.26 0.24 0.24 0.26 Overall 0.45 1.75Attachment 3 – Results Tables Page 17 of 41Table 16Unit 3 Visibility Improvement Cost Effectiveness for Each Class 1 Area (Based on Maximum Visibility Modeling Results)Variable Ammonia Background and Nitrate RepartitioningMaximum Visibility Modeling Results (dv) Visibility Improvements (dv) Improvement ($/dv)(98th Percentile, see Note 1)Calculated from Maximum Visibility Results (foreach Class 1 Area) (see Note 4)Class 1 AreaPre-ConsentDecree Consent Decree SNCRPre-ConsentDecree toConsent DecreeConsent Decreeto SNCRPre-ConsentDecree to SNCRPre-ConsentDecree to ConsentDecreeConsent Decree toSNCRPre-ConsentDecree to SNCRArches1.04 0.89 0.79 0.15 0.10 0.25 91,293,333 46,424,242 73,453,815Bandelier0.81 0.61 0.50 0.20 0.11 0.31 68,470,000 42,953,271 59,576,547Black Canyon0.59 0.46 0.38 0.13 0.08 0.21 105,338,462 56,740,741 86,682,464Canyonlands1.44 1.15 1.01 0.29 0.14 0.43 47,220,690 33,794,118 42,934,272Capitol Reef1.10 0.86 0.71 0.24 0.15 0.39 57,058,333 30,236,842 46,658,163Grand Canyon0.48 0.35 0.28 0.13 0.07 0.20 105,338,462 67,588,235 92,373,737Great Sand Dunes0.33 0.24 0.20 0.09 0.04 0.13 152,155,556 112,097,561 139,618,321La Garita0.44 0.33 0.28 0.11 0.05 0.16 124,490,909 91,920,000 114,312,500Maroon Bells0.25 0.20 0.16 0.05 0.04 0.09 273,880,000 124,216,216 210,229,885Mesa Verde2.18 1.90 1.75 0.28 0.15 0.43 48,907,143 29,844,156 42,142,857Pecos0.58 0.42 0.36 0.16 0.06 0.22 85,587,500 82,071,429 84,675,926Petrified Forest0.43 0.29 0.27 0.14 0.02 0.16 97,814,286 287,250,000 117,243,590San Pedro1.03 0.81 0.67 0.22 0.14 0.36 62,245,455 33,547,445 51,232,493West Elk0.42 0.35 0.28 0.07 0.07 0.14 195,628,571 66,608,696 131,582,734Weminuche0.82 0.64 0.54 0.18 0.10 0.28 76,077,778 47,875,000 66,268,116Wheeler Peak0.39 0.31 0.26 0.08 0.05 0.13 171,175,000 95,750,000 142,890,625Notes:1. Maximum of 2001, 2002 and 2003 visibility data.2. NI = No Improvement3. NA = Not Applicable4. Total Annualized Costs used in calculating Improvement are as follows (in $1,000):Pre-Consent Decree to Consent Decree $13,694Consent Decree to SNCR $4,596Pre-Consent Decree to SNCR $18,290

# Attachment 3 – Results Tables Page 18 of 41 Table 17 Pre-Consent Decree Modeling Results - Unit 4 Variable Ammonia Background and Nitrate Repartitioning 98th Percentile Impact for Each Year (dv)

Class I Area 2001 2002 2003 Average Maximum

Arches 1.05 0.84 0.74 0.88 1.05 Bandelier 0.54 0.81 0.71 0.69 0.81 Black Canyon 0.58 0.54 0.59 0.57 0.59 Canyonlands 1.47 1.06 0.97 1.17 1.47 Capitol Reef 1.11 0.38 0.53 0.67 1.11 Grand Canyon 0.48 0.34 0.27 0.36 0.48 Great Sand Dunes 0.29 0.34 0.27 0.30 0.34 La Garita 0.40 0.45 0.43 0.43 0.45 Maroon Bells 0.24 0.25 0.24 0.24 0.25 Mesa Verde 1.94 2.18 2.15 2.09 2.18 Pecos 0.48 0.52 0.59 0.53 0.59 Petrified Forest 0.44 0.27 0.25 0.32 0.44 San Pedro 0.89 1.04 0.88 0.94 1.04 West Elk 0.38 0.43 0.39 0.40 0.43 Weminuche 0.59 0.81 0.65 0.68 0.81 Wheeler Peak 0.37 0.41 0.38 0.39 0.41 Overall 0.67 2.18

# Attachment 3 – Results Tables Page 19 of 41 Table 18 Baseline (Consent Decree) Visibi lity Modeling Results - Unit 4 Variable Ammonia Background and Nitrate Repartitioning 98th Percentile for Each Year (dv) Class I Area 2001 2002 2003 Average Maximum

Arches 0.88 0.65 0.63 0.72 0.88 Bandelier 0.38 0.56 0.60 0.51 0.60 Black Canyon 0.42 0.42 0.44 0.43 0.44 Canyonlands 1.14 0.85 0.78 0.92 1.14 Capitol Reef 0.86 0.26 0.35 0.49 0.86 Grand Canyon 0.36 0.24 0.18 0.26 0.36 Great Sand Dunes 0.21 0.23 0.21 0.22 0.23 La Garita 0.28 0.32 0.32 0.31 0.32 Maroon Bells 0.20 0.19 0.18 0.19 0.20 Mesa Verde 1.55 1.89 1.73 1.72 1.89 Pecos 0.34 0.35 0.41 0.37 0.41 Petrified Forest 0.29 0.18 0.17 0.21 0.29 San Pedro 0.69 0.80 0.69 0.73 0.80 West Elk 0.30 0.33 0.33 0.32 0.33 Weminuche 0.43 0.63 0.49 0.52 0.63 Wheeler Peak 0.28 0.30 0.28 0.29 0.30 Overall 0.51 1.89

# Attachment 3 – Results Tables Page 20 of 41 Table 19 SNCR Visibility Modeling Results - Unit 4 Variable Ammonia Background and Nitrate Repartitioning 98th Percentile Impact for Each Year (dv)

Class I Area 2001 2002 2003 Average Maximum
Arches 0.79 0.54 0.53 0.62 0.79 Bandelier 0.31 0.49 0.49 0.43 0.49 Black Canyon 0.35 0.34 0.37 0.35 0.37 Canyonlands 1.01 0.71 0.67 0.80 1.01 Capitol Reef 0.71 0.23 0.32 0.42 0.71 Grand Canyon 0.29 0.20 0.17 0.22 0.29 Great Sand Dunes 0.18 0.19 0.16 0.18 0.19 La Garita 0.25 0.27 0.26 0.26 0.27 Maroon Bells 0.17 0.16 0.14 0.15 0.17 Mesa Verde 1.49 1.73 1.58 1.60 1.73 Pecos 0.29 0.30 0.36 0.32 0.36 Petrified Forest 0.29 0.17 0.17 0.21 0.29 San Pedro 0.69 0.66 0.69 0.68 0.69 West Elk 0.25 0.27 0.26 0.26 0.27 Weminuche 0.36 0.54 0.40 0.43 0.54 Wheeler Peak 0.22 0.26 0.23 0.24 0.26 Overall 0.45 1.73Attachment 3 – Results Tables Page 21 of 41Table 20Unit 4 Visibility Improvement Cost Effectiveness for Each Class 1 Area (Based on Maximum Visibility Modeling Results)Variable Ammonia Background and Nitrate RepartitioningMaximum Visibility Modeling Results (dv) Visibility Improvements (dv) Improvement ($/dv)(98th Percentile, see Note 1)Calculated from Maximum Visibility Results (foreach Class 1 Area) (see Note 4)Class 1 AreaPre-ConsentDecree Consent Decree SNCRPre-ConsentDecree toConsent DecreeConsent Decreeto SNCRPre-ConsentDecree to SNCRPre-ConsentDecree to ConsentDecreeConsent Decree toSNCRPre-ConsentDecree to SNCRArches1.05 0.88 0.79 0.17 0.10 0.27 81,076,471 48,378,947 69,354,717Bandelier0.81 0.60 0.49 0.21 0.11 0.32 65,633,333 42,555,556 57,795,597Black Canyon0.59 0.44 0.37 0.15 0.08 0.23 91,886,667 61,280,000 81,684,444Canyonlands1.47 1.14 1.01 0.33 0.13 0.46 41,766,667 35,627,907 40,041,394Capitol Reef1.11 0.86 0.71 0.25 0.15 0.40 55,132,000 30,039,216 45,605,459Grand Canyon0.48 0.36 0.29 0.12 0.07 0.19 114,858,333 67,588,235 97,760,638Great Sand Dunes0.34 0.23 0.19 0.11 0.04 0.15 125,300,000 127,666,667 125,883,562La Garita0.45 0.32 0.27 0.13 0.05 0.18 106,023,077 99,913,043 104,426,136Maroon Bells0.25 0.20 0.17 0.05 0.04 0.09 275,660,000 131,314,286 216,223,529Mesa Verde2.18 1.89 1.73 0.29 0.16 0.45 47,527,586 28,725,000 40,842,222Pecos0.59 0.41 0.36 0.18 0.05 0.23 76,572,222 91,920,000 79,908,696Petrified Forest0.44 0.29 0.29 0.15 0.00 0.15 91,886,667 2,298,000,000 120,914,474San Pedro1.04 0.80 0.69 0.24 0.11 0.35 57,429,167 42,555,556 52,813,218West Elk0.43 0.33 0.27 0.10 0.06 0.16 137,830,000 76,600,000 114,868,750Weminuche0.81 0.63 0.54 0.18 0.09 0.27 76,572,222 49,419,355 67,322,344Wheeler Peak0.41 0.30 0.26 0.11 0.04 0.15 125,300,000 106,883,721 120,124,183Notes:1. Maximum of 2001, 2002 and 2003 visibility data.2. NI = No Improvement3. NA = Not Applicable4. Total Annualized Costs used in calculating Improvement are as follows (in $1,000):Pre-Consent Decree to Consent Decree $13,783Consent Decree to SNCR $4,596Pre-Consent Decree to SNCR $18,379

# Attachment 3 – Results Tables Page 22 of 41 Table 21 Pre-Consent Decree Modeling Results SJGS Constant Ammonia Background and Nitrate Repartitioning 98th Percentile Impact for Each Year (dv)

Class I Area 2001 2002 2003 Average Maximum

Arches 3.88 2.93 3.04 3.28 3.88 Bandelier 1.76 2.55 2.83 2.38 2.83 Black Canyon 1.97 1.95 2.15 2.02 2.15 Canyonlands 5.13 3.81 3.75 4.23 5.13 Capitol Reef 3.75 1.20 1.61 2.19 3.75 Grand Canyon 1.76 1.28 0.92 1.32 1.76 Great Sand Dunes 1.09 1.10 0.96 1.05 1.10 La Garita 1.46 1.45 1.52 1.48 1.52 Maroon Bells 0.89 0.85 0.91 0.88 0.91 Mesa Verde 6.04 5.98 5.85 5.96 6.04 Pecos 1.59 1.93 2.23 1.92 2.23 Petrified Forest 1.34 0.86 0.78 0.99 1.34 San Pedro 3.47 3.47 3.35 3.43 3.47 West Elk 1.45 1.47 1.42 1.45 1.47 Weminuche 2.01 2.57 2.25 2.28 2.57 Wheeler Peak 1.32 1.44 1.35 1.37 1.44 Overall 2.26 6.04

# Attachment 3 – Results Tables Page 23 of 41 Table 22 Baseline (Consent Decree) Visibility Modeling Results SJGS Constant Ammonia Background and Nitrate Repartitioning 98th Percentile for Each Year (dv) Class I Area 2001 2002 2003 Average Maximum

Arches 3.63 2.82 2.71 3.05 3.63 Bandelier 1.32 2.07 2.14 1.84 2.14 Black Canyon 1.49 1.56 1.76 1.60 1.76 Canyonlands 4.80 3.29 3.05 3.71 4.80 Capitol Reef 2.89 0.93 1.24 1.69 2.89 Grand Canyon 1.46 0.98 0.68 1.04 1.46 Great Sand Dunes 0.83 0.80 0.71 0.78 0.83 La Garita 1.08 1.13 1.15 1.12 1.15 Maroon Bells 0.70 0.66 0.65 0.67 0.70 Mesa Verde 5.27 5.67 5.10 5.35 5.67 Pecos 1.20 1.47 1.67 1.45 1.67 Petrified Forest 0.96 0.66 0.60 0.74 0.96 San Pedro 2.68 2.91 2.78 2.79 2.91 West Elk 1.12 1.12 1.09 1.11 1.12 Weminuche 1.56 2.00 1.68 1.75 2.00 Wheeler Peak 0.96 1.06 1.15 1.06 1.15 Overall 1.86 5.67

# Attachment 3 – Results Tables Page 24 of 41 Table 23 SNCR Visibility Modeling Results Constant Ammonia Background and Nitrate Repartitioning 98th Percentile Impact for Each Year (dv)

Class I Area 2001 2002 2003 Average Maximum
Arches 3.06 2.31 2.22 2.53 3.06 Bandelier 1.09 1.76 1.76 1.54 1.76 Black Canyon 1.22 1.26 1.44 1.30 1.44 Canyonlands 4.04 2.72 2.53 3.10 4.04 Capitol Reef 2.36 0.80 1.12 1.42 2.36 Grand Canyon 1.18 0.81 0.59 0.86 1.18 Great Sand Dunes 0.69 0.65 0.59 0.64 0.69 La Garita 0.87 0.90 0.97 0.91 0.97 Maroon Bells 0.56 0.54 0.52 0.54 0.56 Mesa Verde 4.63 5.30 4.74 4.89 5.30 Pecos 1.01 1.23 1.38 1.20 1.38 Petrified Forest 0.89 0.54 0.53 0.65 0.89 San Pedro 2.19 2.61 2.34 2.38 2.61 West Elk 0.90 0.91 0.90 0.90 0.91 Weminuche 1.29 1.77 1.45 1.50 1.77 Wheeler Peak 0.89 0.86 0.93 0.89 0.93 Overall 1.58 5.30Attachment 3 – Results Tables Page 25 of 41Table 24SJGS Visibility Improvement Cost Effectiveness for Each Class 1 Area (Based on Maximum Visibility Modeling Results)Constant Ammonia Background and Nitrate RepartitioningMaximum Visibility Modeling Results (dv) Visibility Improvements (dv) Improvement ($/dv)(98th Percentile, see Note 1)Calculated from Maximum Visibility Results (foreach Class 1 Area) (see Note 4)Class 1 AreaPre-ConsentDecree Consent Decree SNCRPre-ConsentDecree toConsent DecreeConsent Decreeto SNCRPre-ConsentDecree to SNCRPre-ConsentDecree to ConsentDecreeConsent Decree toSNCRPre-ConsentDecree to SNCRArches3.88 3.63 3.06 0.25 0.57 0.82 205,872,000 27,888,112 82,019,465Bandelier2.83 2.14 1.76 0.69 0.38 1.07 74,591,304 42,312,997 63,186,504Black Canyon2.15 1.76 1.44 0.39 0.33 0.72 131,969,231 49,083,077 94,293,706Canyonlands5.13 4.80 4.04 0.33 0.76 1.09 155,963,636 20,879,581 61,627,057Capitol Reef3.75 2.89 2.36 0.86 0.53 1.39 59,846,512 30,098,113 48,503,597Grand Canyon1.76 1.46 1.18 0.30 0.28 0.58 171,560,000 56,367,491 115,643,225Great Sand Dunes1.10 0.83 0.69 0.27 0.14 0.41 190,622,222 117,294,118 166,059,113La Garita1.52 1.15 0.97 0.37 0.18 0.55 139,102,703 86,695,652 121,696,751Maroon Bells0.91 0.70 0.56 0.21 0.14 0.35 245,085,714 113,134,752 192,079,772Mesa Verde6.04 5.67 5.30 0.37 0.37 0.74 139,102,703 42,766,756 90,740,242Pecos2.23 1.67 1.38 0.56 0.29 0.85 91,907,143 54,258,503 78,946,136Petrified Forest1.34 0.96 0.89 0.38 0.08 0.46 135,442,105 212,693,333 148,175,824San Pedro3.47 2.91 2.61 0.56 0.30 0.86 91,907,143 53,173,333 78,395,349West Elk1.47 1.12 0.91 0.35 0.21 0.56 147,051,429 77,062,802 121,041,293Weminuche2.57 2.00 1.77 0.57 0.23 0.80 90,294,737 69,056,277 84,169,788Wheeler Peak1.44 1.15 0.93 0.29 0.22 0.51 177,475,862 73,851,852 133,241,107Notes:1. Maximum of 2001, 2002 and 2003 visibility data.2. NI = No Improvement3. NA = Not Applicable4. Total Annualized Costs used in calculating Improvement are as follows (in $1,000):Pre-Consent Decree to Consent Decree $51,468Consent Decree to SNCR $15,952Pre-Consent Decree to SNCR $67,420

# Attachment 3 – Results Tables Page 26 of 41 Table 25 Pre-Consent Decree Modeling Results - Unit 1 Constant Ammonia Background and Nitrate Repartitioning 98th Percentile Impact for Each Year (dv)

Class I Area 2001 2002 2003 Average Maximum

Arches 1.10 0.85 0.82 0.92 1.10 Bandelier 0.36 0.64 0.63 0.54 0.64 Black Canyon 0.39 0.43 0.48 0.43 0.48 Canyonlands 1.50 1.02 0.90 1.14 1.50 Capitol Reef 0.85 0.26 0.36 0.49 0.85 Grand Canyon 0.39 0.26 0.19 0.28 0.39 Great Sand Dunes 0.22 0.21 0.20 0.21 0.22 La Garita 0.29 0.32 0.33 0.31 0.33 Maroon Bells 0.19 0.19 0.20 0.19 0.20 Mesa Verde 2.26 2.56 2.20 2.34 2.56 Pecos 0.33 0.42 0.46 0.40 0.46 Petrified Forest 0.26 0.18 0.16 0.20 0.26 San Pedro 0.80 1.00 0.86 0.89 1.00 West Elk 0.33 0.32 0.30 0.32 0.33 Weminuche 0.45 0.59 0.52 0.52 0.59 Wheeler Peak 0.27 0.28 0.31 0.29 0.31 Overall 0.59 2.56

# Attachment 3 – Results Tables Page 27 of 41 Table 26 Baseline (Consent Decree) Visibi lity Modeling Results - Unit 1 Constant Ammonia Background and Nitrate Repartitioning 98th Percentile for Each Year (dv) Class I Area 2001 2002 2003 Average Maximum

Arches 0.86 0.67 0.71 0.75 0.86 Bandelier 0.29 0.49 0.44 0.41 0.49 Black Canyon 0.31 0.33 0.36 0.33 0.36 Canyonlands 1.25 0.80 0.71 0.92 1.25 Capitol Reef 0.66 0.20 0.28 0.38 0.66 Grand Canyon 0.34 0.21 0.16 0.24 0.34 Great Sand Dunes 0.16 0.15 0.16 0.16 0.16 La Garita 0.22 0.22 0.24 0.23 0.24 Maroon Bells 0.15 0.13 0.12 0.13 0.15 Mesa Verde 1.96 2.23 1.77 1.99 2.23 Pecos 0.25 0.32 0.34 0.30 0.34 Petrified Forest 0.19 0.14 0.12 0.15 0.19 San Pedro 0.57 0.75 0.65 0.66 0.75 West Elk 0.25 0.22 0.25 0.24 0.25 Weminuche 0.34 0.52 0.39 0.42 0.52 Wheeler Peak 0.23 0.19 0.23 0.22 0.23 Overall 0.47 2.23

# Attachment 3 – Results Tables Page 28 of 41 Table 27 SNCR Visibility Modeling Results - Unit 1 Constant Ammonia Background and Nitrate Repartitioning 98th Percentile Impact for Each Year (dv)

Class I Area 2001 2002 2003 Average Maximum
Arches 0.69 0.53 0.57 0.59 0.69 Bandelier 0.23 0.39 0.35 0.33 0.39 Black Canyon 0.25 0.26 0.29 0.27 0.29 Canyonlands 0.99 0.63 0.58 0.73 0.99 Capitol Reef 0.52 0.16 0.23 0.31 0.52 Grand Canyon 0.27 0.17 0.13 0.19 0.27 Great Sand Dunes 0.13 0.13 0.13 0.13 0.13 La Garita 0.18 0.18 0.20 0.19 0.20 Maroon Bells 0.12 0.11 0.10 0.11 0.12 Mesa Verde 1.61 1.83 1.54 1.66 1.83 Pecos 0.22 0.26 0.28 0.25 0.28 Petrified Forest 0.17 0.11 0.11 0.13 0.17 San Pedro 0.45 0.63 0.53 0.54 0.63 West Elk 0.20 0.18 0.19 0.19 0.20 Weminuche 0.27 0.41 0.32 0.33 0.41 Wheeler Peak 0.19 0.15 0.18 0.17 0.19 Overall 0.38 1.83Attachment 3 – Results Tables Page 29 of 41Table 28Unit 1 Visibility Improvement Cost Effectiveness for Each Class 1 Area (Based on Maximum Visibility Modeling Results)Constant Ammonia Background and Nitrate RepartitioningMaximum Visibility Modeling Results (dv) Visibility Improvements (dv) Improvement ($/dv)(98th Percentile, see Note 1)Calculated from Maximum Visibility Results (foreach Class 1 Area) (see Note 4)Class 1 AreaPre-ConsentDecree Consent Decree SNCRPre-ConsentDecree toConsent DecreeConsent Decreeto SNCRPre-ConsentDecree to SNCRPre-ConsentDecree to ConsentDecreeConsent Decree toSNCRPre-ConsentDecree to SNCRArches1.10 0.86 0.69 0.24 0.18 0.42 49,370,833 19,314,286 36,696,386Bandelier0.64 0.49 0.39 0.15 0.10 0.25 78,993,333 34,845,361 61,655,870Black Canyon0.48 0.36 0.29 0.12 0.07 0.19 98,741,667 51,212,121 81,876,344Canyonlands1.50 1.25 0.99 0.25 0.26 0.51 47,396,000 13,203,125 30,096,838Capitol Reef0.85 0.66 0.52 0.19 0.14 0.33 62,363,158 24,316,547 46,288,754Grand Canyon0.39 0.34 0.27 0.05 0.07 0.12 236,980,000 48,985,507 127,974,790Great Sand Dunes0.22 0.16 0.13 0.06 0.03 0.09 197,483,333 116,551,724 171,112,360La Garita0.33 0.24 0.20 0.09 0.05 0.14 131,655,556 75,111,111 112,807,407Maroon Bells0.20 0.15 0.12 0.05 0.04 0.09 236,980,000 96,571,429 179,164,706Mesa Verde2.56 2.23 1.83 0.33 0.41 0.74 35,906,061 8,345,679 20,719,728Pecos0.46 0.34 0.28 0.12 0.06 0.18 98,741,667 60,357,143 86,528,409Petrified Forest0.26 0.19 0.17 0.07 0.02 0.09 169,271,429 198,823,529 175,045,977San Pedro1.00 0.75 0.63 0.25 0.12 0.37 47,396,000 27,933,884 41,048,518West Elk0.33 0.25 0.20 0.08 0.05 0.13 148,112,500 62,592,593 113,649,254Weminuche0.59 0.52 0.41 0.07 0.11 0.18 169,271,429 30,727,273 84,605,556Wheeler Peak0.31 0.23 0.19 0.08 0.05 0.13 148,112,500 75,111,111 121,832,000Notes:1. Maximum of 2001, 2002 and 2003 visibility data.2. NI = No Improvement3. NA = Not Applicable4. Total Annualized Costs used in calculating Improvement are as follows (in $1,000):Pre-Consent Decree to Consent Decree $11,849Consent Decree to SNCR $3,380Pre-Consent Decree to SNCR $15,229

# Attachment 3 – Results Tables Page 30 of 41 Table 29 Pre-Consent Decree Modeling Results - Unit 2 Constant Ammonia Background and Nitrate Repartitioning 98th Percentile Impact for Each Year (dv)

Class I Area 2001 2002 2003 Average Maximum

Arches 1.13 0.85 0.78 0.92 1.13 Bandelier 0.38 0.65 0.65 0.56 0.65 Black Canyon 0.41 0.44 0.49 0.45 0.49 Canyonlands 1.53 1.03 0.91 1.16 1.53 Capitol Reef 0.88 0.26 0.36 0.50 0.88 Grand Canyon 0.39 0.26 0.19 0.28 0.39 Great Sand Dunes 0.24 0.21 0.20 0.22 0.24 La Garita 0.32 0.33 0.33 0.33 0.33 Maroon Bells 0.19 0.18 0.20 0.19 0.20 Mesa Verde 2.32 2.59 2.21 2.37 2.59 Pecos 0.34 0.42 0.47 0.41 0.47 Petrified Forest 0.27 0.18 0.16 0.20 0.27 San Pedro 0.83 1.02 0.87 0.91 1.02 West Elk 0.33 0.33 0.32 0.33 0.33 Weminuche 0.46 0.59 0.53 0.53 0.59 Wheeler Peak 0.27 0.29 0.30 0.29 0.30 Overall 0.60 2.59

# Attachment 3 – Results Tables Page 31 of 41 Table 30 Baseline (Consent Decree) Visibi lity Modeling Results - Unit 2 Constant Ammonia Background and Nitrate Repartitioning 98th Percentile for Each Year (dv) Class I Area 2001 2002 2003 Average Maximum

Arches 0.85 0.67 0.71 0.74 0.85 Bandelier 0.28 0.48 0.43 0.40 0.48 Black Canyon 0.31 0.33 0.36 0.33 0.36 Canyonlands 1.24 0.79 0.70 0.91 1.24 Capitol Reef 0.66 0.20 0.28 0.38 0.66 Grand Canyon 0.34 0.21 0.16 0.24 0.34 Great Sand Dunes 0.16 0.15 0.16 0.16 0.16 La Garita 0.22 0.22 0.24 0.23 0.24 Maroon Bells 0.15 0.13 0.12 0.13 0.15 Mesa Verde 1.95 2.22 1.76 1.98 2.22 Pecos 0.25 0.31 0.34 0.30 0.34 Petrified Forest 0.19 0.14 0.12 0.15 0.19 San Pedro 0.57 0.75 0.65 0.66 0.75 West Elk 0.25 0.22 0.24 0.24 0.25 Weminuche 0.34 0.51 0.39 0.41 0.51 Wheeler Peak 0.23 0.19 0.23 0.22 0.23 Overall 0.47 2.22

# Attachment 3 – Results Tables Page 32 of 41 Table 31 SNCR Visibility Modeling Results - Unit 2 Constant Ammonia Background and Nitrate Repartitioning 98th Percentile Impact for Each Year (dv)

Class I Area 2001 2002 2003 Average Maximum
Arches 0.68 0.53 0.56 0.59 0.68 Bandelier 0.23 0.39 0.35 0.32 0.39 Black Canyon 0.25 0.26 0.29 0.27 0.29 Canyonlands 0.99 0.63 0.57 0.73 0.99 Capitol Reef 0.52 0.16 0.23 0.30 0.52 Grand Canyon 0.27 0.17 0.13 0.19 0.27 Great Sand Dunes 0.13 0.13 0.13 0.13 0.13 La Garita 0.18 0.18 0.19 0.18 0.19 Maroon Bells 0.12 0.11 0.10 0.11 0.12 Mesa Verde 1.60 1.82 1.54 1.65 1.82 Pecos 0.22 0.26 0.28 0.25 0.28 Petrified Forest 0.17 0.11 0.11 0.13 0.17 San Pedro 0.45 0.63 0.52 0.53 0.63 West Elk 0.20 0.18 0.19 0.19 0.20 Weminuche 0.27 0.41 0.32 0.33 0.41 Wheeler Peak 0.18 0.15 0.18 0.17 0.18 Overall 0.38 1.82Attachment 3 – Results Tables Page 33 of 41Table 32Unit 2 Visibility Improvement Cost Effectiveness for Each Class 1 Area (Based on Maximum Visibility Modeling Results)Constant Ammonia Background and Nitrate RepartitioningMaximum Visibility Modeling Results (dv) Visibility Improvements (dv) Improvement ($/dv)(98th Percentile, see Note 1)Calculated from Maximum Visibility Results (foreach Class 1 Area) (see Note 4)Class 1 AreaPre-ConsentDecree Consent Decree SNCRPre-ConsentDecree toConsent DecreeConsent Decreeto SNCRPre-ConsentDecree to SNCRPre-ConsentDecree to ConsentDecreeConsent Decree toSNCRPre-ConsentDecree to SNCRArches1.13 0.85 0.68 0.28 0.17 0.45 43,364,286 20,000,000 34,570,156Bandelier0.65 0.48 0.39 0.17 0.09 0.26 71,423,529 37,977,528 59,930,502Black Canyon0.49 0.36 0.29 0.13 0.07 0.20 93,400,000 49,705,882 78,393,939Canyonlands1.53 1.24 0.99 0.29 0.25 0.54 41,868,966 13,466,135 28,691,312Capitol Reef0.88 0.66 0.52 0.22 0.14 0.36 55,190,909 23,971,631 42,997,230Grand Canyon0.39 0.34 0.27 0.05 0.07 0.12 242,840,000 47,605,634 128,280,992Great Sand Dunes0.24 0.16 0.13 0.08 0.03 0.11 151,775,000 112,666,667 141,109,091La Garita0.33 0.24 0.19 0.09 0.05 0.14 134,911,111 73,478,261 114,132,353Maroon Bells0.20 0.15 0.12 0.05 0.04 0.09 242,840,000 96,571,429 182,611,765Mesa Verde2.59 2.22 1.82 0.37 0.40 0.77 32,816,216 8,366,337 20,054,264Pecos0.47 0.34 0.28 0.13 0.06 0.19 93,400,000 58,275,862 82,563,830Petrified Forest0.27 0.19 0.17 0.08 0.02 0.10 151,775,000 187,777,778 158,387,755San Pedro1.02 0.75 0.63 0.27 0.12 0.39 44,970,370 27,258,065 39,395,939West Elk0.33 0.25 0.20 0.08 0.06 0.14 151,775,000 61,454,545 114,977,778Weminuche0.59 0.51 0.41 0.08 0.10 0.18 151,775,000 33,137,255 85,285,714Wheeler Peak0.30 0.23 0.18 0.07 0.05 0.12 173,457,143 73,478,261 133,810,345Notes:1. Maximum of 2001, 2002 and 2003 visibility data.2. NI = No Improvement3. NA = Not Applicable4. Total Annualized Costs used in calculating Improvement are as follows (in $1,000):Pre-Consent Decree to Consent Decree $12,142Consent Decree to SNCR $3,380Pre-Consent Decree to SNCR $15,522

# Attachment 3 – Results Tables Page 34 of 41 Table 33 Pre-Consent Decree Modeling Results - Unit 3 Constant Ammonia Background and Nitrate Repartitioning 98th Percentile Impact for Each Year (dv)

Class I Area 2001 2002 2003 Average Maximum

Arches 1.57 1.00 0.94 1.17 1.57 Bandelier 0.60 0.97 1.01 0.86 1.01 Black Canyon 0.68 0.63 0.76 0.69 0.76 Canyonlands 2.01 1.21 1.26 1.49 2.01 Capitol Reef 1.30 0.40 0.54 0.75 1.30 Grand Canyon 0.55 0.40 0.31 0.42 0.55 Great Sand Dunes 0.34 0.41 0.31 0.35 0.41 La Garita 0.48 0.50 0.52 0.50 0.52 Maroon Bells 0.28 0.27 0.31 0.29 0.31 Mesa Verde 3.05 3.49 2.92 3.15 3.49 Pecos 0.53 0.64 0.75 0.64 0.75 Petrified Forest 0.45 0.27 0.24 0.32 0.45 San Pedro 1.23 1.48 1.25 1.32 1.48 West Elk 0.45 0.50 0.44 0.46 0.50 Weminuche 0.71 1.03 0.81 0.85 1.03 Wheeler Peak 0.44 0.45 0.42 0.44 0.45 Overall 0.86 3.49

# Attachment 3 – Results Tables Page 35 of 41 Table 34 Baseline (Consent Decree) Visibi lity Modeling Results - Unit 3 Constant Ammonia Background and Nitrate Repartitioning 98th Percentile for Each Year (dv) Class I Area 2001 2002 2003 Average Maximum

Arches 1.33 0.88 0.84 1.02 1.33 Bandelier 0.43 0.75 0.78 0.65 0.78 Black Canyon 0.49 0.52 0.61 0.54 0.61 Canyonlands 1.67 1.12 1.07 1.29 1.67 Capitol Reef 0.99 0.28 0.42 0.56 0.99 Grand Canyon 0.44 0.30 0.22 0.32 0.44 Great Sand Dunes 0.27 0.26 0.23 0.25 0.27 La Garita 0.35 0.35 0.38 0.36 0.38 Maroon Bells 0.22 0.21 0.22 0.22 0.22 Mesa Verde 2.42 2.86 2.41 2.56 2.86 Pecos 0.39 0.48 0.55 0.47 0.55 Petrified Forest 0.32 0.20 0.19 0.24 0.32 San Pedro 0.95 1.14 1.02 1.04 1.14 West Elk 0.36 0.39 0.39 0.38 0.39 Weminuche 0.52 0.79 0.58 0.63 0.79 Wheeler Peak 0.31 0.34 0.33 0.33 0.34 Overall 0.68 2.86

# Attachment 3 – Results Tables Page 36 of 41 Table 35 SNCR Visibility Modeling Results - Unit 3 Constant Ammonia Background and Nitrate Repartitioning 98th Percentile Impact for Each Year (dv)

Class I Area 2001 2002 2003 Average Maximum
Arches 1.06 0.70 0.67 0.81 1.06 Bandelier 0.36 0.62 0.63 0.54 0.63 Black Canyon 0.39 0.41 0.49 0.43 0.49 Canyonlands 1.34 0.89 0.85 1.03 1.34 Capitol Reef 0.79 0.25 0.36 0.47 0.79 Grand Canyon 0.35 0.25 0.19 0.26 0.35 Great Sand Dunes 0.22 0.21 0.19 0.21 0.22 La Garita 0.28 0.28 0.32 0.29 0.32 Maroon Bells 0.17 0.17 0.17 0.17 0.17 Mesa Verde 2.11 2.37 2.05 2.17 2.37 Pecos 0.33 0.40 0.46 0.40 0.46 Petrified Forest 0.28 0.17 0.16 0.20 0.28 San Pedro 0.76 0.92 0.82 0.83 0.92 West Elk 0.29 0.31 0.31 0.30 0.31 Weminuche 0.43 0.62 0.52 0.52 0.62 Wheeler Peak 0.29 0.29 0.28 0.28 0.29 Overall 0.56 2.37Attachment 3 – Results Tables Page 37 of 41Table 36Unit 3 Visibility Improvement Cost Effectiveness for Each Class 1 Area (Based on Maximum Visibility Modeling Results)Constant Ammonia Background and Nitrate RepartitioningMaximum Visibility Modeling Results (dv) Visibility Improvements (dv) Improvement ($/dv)(98th Percentile, see Note 1)Calculated from Maximum Visibility Results (foreach Class 1 Area) (see Note 4)Class 1 AreaPre-ConsentDecree Consent Decree SNCRPre-ConsentDecree toConsent DecreeConsent Decreeto SNCRPre-ConsentDecree to SNCRPre-ConsentDecree to ConsentDecreeConsent Decree toSNCRPre-ConsentDecree to SNCRArches1.57 1.33 1.06 0.24 0.27 0.51 57,058,333 17,213,483 36,074,951Bandelier1.01 0.78 0.63 0.23 0.15 0.38 59,539,130 29,844,156 47,630,208Black Canyon0.76 0.61 0.49 0.15 0.12 0.27 91,293,333 38,300,000 67,740,741Canyonlands2.01 1.67 1.34 0.34 0.33 0.67 40,276,471 14,055,046 27,421,289Capitol Reef1.30 0.99 0.79 0.31 0.20 0.51 44,174,194 23,095,477 35,933,202Grand Canyon0.55 0.44 0.35 0.11 0.09 0.20 124,490,909 51,066,667 91,450,000Great Sand Dunes0.41 0.27 0.22 0.14 0.05 0.19 97,814,286 93,795,918 96,772,487La Garita0.52 0.38 0.32 0.14 0.06 0.20 97,814,286 74,129,032 90,544,554Maroon Bells0.31 0.22 0.17 0.09 0.05 0.14 152,155,556 99,913,043 134,485,294Mesa Verde3.49 2.86 2.37 0.63 0.50 1.13 21,736,508 9,284,848 16,257,778Pecos0.75 0.55 0.46 0.20 0.09 0.29 68,470,000 52,827,586 63,728,223Petrified Forest0.45 0.32 0.28 0.13 0.04 0.17 105,338,462 127,666,667 110,180,723San Pedro1.48 1.14 0.92 0.34 0.22 0.56 40,276,471 20,890,909 32,660,714West Elk0.50 0.39 0.31 0.11 0.08 0.19 124,490,909 59,688,312 97,807,487Weminuche1.03 0.79 0.62 0.24 0.17 0.41 57,058,333 27,686,747 45,049,261Wheeler Peak0.45 0.34 0.29 0.11 0.05 0.16 124,490,909 86,716,981 112,208,589Notes:1. Maximum of 2001, 2002 and 2003 visibility data.2. NI = No Improvement3. NA = Not Applicable4. Total Annualized Costs used in calculating Improvement are as follows (in $1,000):Pre-Consent Decree to Consent Decree $13,694Consent Decree to SNCR $4,596Pre-Consent Decree to SNCR $18,290

# Attachment 3 – Results Tables Page 38 of 41 Table 37 Pre-Consent Decree Modeling Results - Unit 4 Constant Ammonia Background and Nitrate Repartitioning 98th Percentile Impact for Each Year (dv)

Class I Area 2001 2002 2003 Average Maximum

Arches 1.60 1.05 0.98 1.21 1.60 Bandelier 0.60 0.98 1.02 0.87 1.02 Black Canyon 0.67 0.64 0.77 0.69 0.77 Canyonlands 2.00 1.22 1.28 1.50 2.00 Capitol Reef 1.31 0.41 0.55 0.76 1.31 Grand Canyon 0.56 0.41 0.31 0.43 0.56 Great Sand Dunes 0.35 0.39 0.31 0.35 0.39 La Garita 0.49 0.49 0.52 0.50 0.52 Maroon Bells 0.28 0.27 0.28 0.28 0.28 Mesa Verde 3.03 3.51 2.91 3.15 3.51 Pecos 0.53 0.65 0.76 0.65 0.76 Petrified Forest 0.45 0.27 0.25 0.32 0.45 San Pedro 1.24 1.48 1.27 1.33 1.48 West Elk 0.46 0.49 0.43 0.46 0.49 Weminuche 0.70 1.03 0.81 0.85 1.03 Wheeler Peak 0.45 0.46 0.42 0.44 0.46 Overall 0.86 3.51

# Attachment 3 – Results Tables Page 39 of 41 Table 38 Baseline (Consent Decree) Visibi lity Modeling Results - Unit 4 Constant Ammonia Background and Nitrate Repartitioning 98th Percentile for Each Year (dv) Class I Area 2001 2002 2003 Average Maximum

Arches 1.31 0.88 0.82 1.00 1.31 Bandelier 0.42 0.73 0.75 0.63 0.75 Black Canyon 0.48 0.51 0.60 0.53 0.60 Canyonlands 1.66 1.11 1.04 1.27 1.66 Capitol Reef 0.99 0.27 0.41 0.56 0.99 Grand Canyon 0.43 0.30 0.22 0.32 0.43 Great Sand Dunes 0.27 0.26 0.23 0.25 0.27 La Garita 0.35 0.35 0.37 0.36 0.37 Maroon Bells 0.22 0.21 0.21 0.21 0.22 Mesa Verde 2.39 2.82 2.34 2.52 2.82 Pecos 0.38 0.47 0.54 0.46 0.54 Petrified Forest 0.31 0.20 0.19 0.23 0.31 San Pedro 0.94 1.11 1.00 1.02 1.11 West Elk 0.36 0.38 0.36 0.37 0.38 Weminuche 0.51 0.70 0.58 0.60 0.70 Wheeler Peak 0.30 0.34 0.33 0.32 0.34 Overall 0.67 2.82

# Attachment 3 – Results Tables Page 40 of 41 Table 39 SNCR Visibility Modeling Results - Unit 4 Constant Ammonia Background and Nitrate Repartitioning 98th Percentile Impact for Each Year (dv)

Class I Area 2001 2002 2003 Average Maximum
Arches 1.04 0.70 0.66 0.80 1.04 Bandelier 0.35 0.60 0.60 0.52 0.60 Black Canyon 0.39 0.40 0.48 0.42 0.48 Canyonlands 1.33 0.89 0.83 1.02 1.33 Capitol Reef 0.79 0.25 0.35 0.46 0.79 Grand Canyon 0.35 0.25 0.19 0.26 0.35 Great Sand Dunes 0.22 0.20 0.18 0.20 0.22 La Garita 0.28 0.28 0.31 0.29 0.31 Maroon Bells 0.17 0.17 0.17 0.17 0.17 Mesa Verde 2.08 2.35 2.01 2.15 2.35 Pecos 0.32 0.39 0.46 0.39 0.46 Petrified Forest 0.31 0.17 0.19 0.22 0.31 San Pedro 0.94 0.90 1.00 0.94 1.00 West Elk 0.28 0.31 0.29 0.29 0.31 Weminuche 0.42 0.56 0.51 0.50 0.56 Wheeler Peak 0.28 0.28 0.27 0.28 0.28 Overall 0.56 2.35Attachment 3 – Results Tables Page 41 of 41Table 40Unit 4 Visibility Improvement Cost Effectiveness for Each Class 1 Area (Based on Maximum Visibility Modeling Results)Constant Ammonia Background and Nitrate RepartitioningMaximum Visibility Modeling Results (dv) Visibility Improvements (dv) Improvement ($/dv)(98th Percentile, see Note 1)Calculated from Maximum Visibility Results (foreach Class 1 Area) (see Note 4)Class 1 AreaPre-ConsentDecree Consent Decree SNCRPre-ConsentDecree toConsent DecreeConsent Decreeto SNCRPre-ConsentDecree to SNCRPre-ConsentDecree to ConsentDecreeConsent Decree toSNCRPre-ConsentDecree to SNCRArches1.60 1.31 1.04 0.29 0.27 0.56 47,527,586 17,278,195 33,055,755Bandelier1.02 0.75 0.60 0.27 0.15 0.42 51,048,148 31,479,452 44,180,288Black Canyon0.77 0.60 0.48 0.17 0.12 0.29 81,076,471 39,620,690 64,262,238Canyonlands2.00 1.66 1.33 0.34 0.33 0.67 40,538,235 13,927,273 27,431,343Capitol Reef1.31 0.99 0.79 0.32 0.20 0.52 43,071,875 22,865,672 35,276,392Grand Canyon0.56 0.43 0.35 0.13 0.09 0.22 106,023,077 54,070,588 85,483,721Great Sand Dunes0.39 0.27 0.22 0.12 0.05 0.17 114,858,333 90,117,647 107,479,532La Garita0.52 0.37 0.31 0.15 0.06 0.21 91,886,667 72,952,381 86,286,385Maroon Bells0.28 0.22 0.17 0.06 0.05 0.11 229,716,667 93,795,918 168,614,679Mesa Verde3.51 2.82 2.35 0.69 0.47 1.16 19,975,362 9,841,542 15,885,048Pecos0.76 0.54 0.46 0.22 0.09 0.31 62,650,000 54,070,588 60,259,016Petrified Forest0.45 0.31 0.31 0.14 0.00 0.14 98,450,000 4,596,000,000 130,347,518San Pedro1.48 1.11 1.00 0.37 0.11 0.48 37,251,351 40,315,789 37,973,140West Elk0.49 0.38 0.31 0.11 0.07 0.18 125,300,000 62,958,904 100,431,694Weminuche1.03 0.70 0.56 0.33 0.14 0.47 41,766,667 32,595,745 39,021,231Wheeler Peak0.46 0.34 0.28 0.12 0.06 0.18 114,858,333 79,241,379 103,252,809Notes:1. Maximum of 2001, 2002 and 2003 visibility data.2. NI = No Improvement3. NA = Not Applicable4. Total Annualized Costs used in calculating Improvement are as follows (in $1,000):Pre-Consent Decree to Consent Decree $13,783Consent Decree to SNCR $4,596Pre-Consent Decree to SNCR $18,379PNM SJGS BART Modeling Nitrate Repartitioning - Monthly Varying NH3 Background 2001

Pre-Consent Decree (4) Class I Area No. of Days > 0.5 dv 98th Percentile %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF %_Total ARCH 59 1.92 71.14 23.07 1.46 0.89 1.08 2.36 100 BAND 70 1.31 35.48 59.51 1.32 0.81 0.83 2.06 100 BLCA 40 1.14 52.26 45.03 0.71 0.44 0.43 1.13 100 CANY 80 2.59 65.05 28.99 1.51 0.92 1.08 2.44 100 CARE 31 1.97 51.54 43.71 1.15 0.71 1.06 1.83 100 GRCA 14 1.14 42.20 54.25 0.90 0.55 0.65 1.45 100 GRSA 23 0.85 77.31 14.03 2.38 1.46 1.09 3.75 100 LAGA 35 1.15 42.48 54.54 0.77 0.47 0.50 1.24 100 MABE 16 0.67 41.50 54.30 1.08 0.66 0.76 1.70 100 MEVE 184 4.20 84.29 1.94 3.21 1.97 3.57 5.03 100 PECO 53 1.40 43.19 52.60 1.08 0.66 0.76 1.71 100 PEFO 18 1.13 84.94 9.80 1.30 0.79 1.11 2.06 100 SAPE 111 1.78 79.88 8.73 2.70 1.65 2.83 4.20 100 WEEL 34 0.99 40.76 54.57 1.20 0.73 0.85 1.89 100 WEMI 74 1.51 26.70 66.76 1.53 0.94 1.66 2.40 100 WHPE 37 1.00 32.06 63.10 1.28 0.78 0.76 2.02 100

Consent Decree (3) Class I Area No. of Days > 0.5 dv 98th Percentile %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF %_Total ARCH 47 1.69 33.57 62.13 1.88 0.48 0.48 1.46 100 BAND 49 1.04 30.40 66.83 1.26 0.32 0.23 0.97 100 BLCA 26 0.95 37.13 57.66 2.28 0.58 0.58 1.76 100 CANY 67 2.26 55.66 38.57 2.53 0.65 0.62 1.98 100 CARE 28 1.81 52.95 42.68 1.91 0.49 0.48 1.49 100 GRCA 12 0.97 38.14 59.75 0.93 0.24 0.19 0.75 100 GRSA 14 0.63 38.82 54.18 3.18 0.81 0.53 2.47 100 LAGA 20 0.86 38.38 59.80 0.81 0.21 0.15 0.65 100 MABE 10 0.54 69.46 25.41 2.29 0.59 0.43 1.83 100 MEVE 157 3.38 75.39 9.84 6.26 1.60 2.09 4.82 100 PECO 35 1.05 80.51 15.41 1.83 0.47 0.36 1.43 100 PEFO 14 0.82 27.95 69.41 1.18 0.30 0.25 0.92 100 SAPE 93 1.40 39.89 53.93 2.71 0.69 0.68 2.09 100 WEEL 19 0.80 37.76 60.62 0.70 0.18 0.19 0.55 100 WEMI 53 1.15 28.74 65.59 2.44 0.62 0.72 1.88 100 WHPE 27 0.75 30.82 66.18 1.36 0.35 0.23 1.06 100

SNCR (1) Class I Area No. of Days > 0.5 dv 98th Percentile %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF %_Total ARCH 45 1.61 72.40 20.28 3.26 0.83 0.54 2.69 100 BAND 43 0.92 41.86 53.84 1.89 0.48 0.45 1.47 100 BLCA 20 0.84 53.16 42.04 2.12 0.54 0.45 1.69 100 CANY 63 2.15 73.09 23.31 1.59 0.41 0.34 1.26 100 CARE 27 1.64 58.97 36.17 2.13 0.54 0.53 1.66 100 GRCA 11 0.85 43.66 53.93 1.07 0.27 0.22 0.86 100 GRSA 10 0.58 81.57 12.19 2.87 0.73 0.39 2.24 100 LAGA 14 0.76 32.46 62.80 2.10 0.54 0.47 1.63 100 MABE 8 0.51 45.12 51.36 1.58 0.40 0.28 1.25 100 MEVE 153 3.36 76.09 9.01 6.32 1.61 2.11 4.87 100 PECO 30 0.90 48.12 48.79 1.38 0.35 0.27 1.08 100 PEFO 13 0.77 88.28 8.12 1.57 0.40 0.38 1.24 100 SAPE 85 1.31 76.57 16.80 2.87 0.73 0.83 2.21 100 WEEL 16 0.74 86.35 7.65 2.68 0.68 0.49 2.14 100 WEMI 44 1.03 90.40 1.92 3.41 0.87 0.73 2.66 100 WHPE 20 0.68 80.74 13.39 2.64 0.67 0.50 2.06 100PNM SJGS BART Modeling Nitrate Repartitioning - Monthly Varying NH3 Background 2002

Pre-Consent Decree (4) Class I Area No. of Days > 0.5 dv 98th Percentile %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF %_Total ARCH 46 1.76 43.87 46.41 2.37 1.45 2.20 3.70 100 BAND 87 1.86 44.28 49.89 1.45 0.89 1.18 2.31 100 BLCA 54 1.34 35.37 59.23 1.36 0.83 1.04 2.17 100 CANY 67 2.04 83.50 1.79 3.67 2.25 3.05 5.74 100 CARE 24 1.16 33.88 63.47 0.67 0.41 0.49 1.09 100 GRCA 15 0.93 89.85 2.03 2.09 1.28 1.45 3.30 100 GRSA 28 1.00 82.39 12.99 1.20 0.73 0.78 1.90 100 LAGA 63 1.30 81.37 13.32 1.40 0.86 0.81 2.24 100 MABE 20 0.78 28.96 63.27 2.15 1.32 0.80 3.49 100 MEVE 184 4.09 34.40 60.73 1.18 0.72 1.11 1.87 100 PECO 62 1.33 53.02 40.33 1.81 1.11 0.89 2.85 100 PEFO 16 0.79 90.95 1.94 1.81 1.11 1.31 2.89 100 SAPE 125 2.37 71.74 23.38 1.23 0.75 0.94 1.96 100 WEEL 43 1.15 35.15 60.78 1.03 0.63 0.76 1.65 100 WEMI 117 1.85 57.89 29.83 2.89 1.77 3.13 4.49 100 WHPE 40 0.95 55.69 38.20 1.67 1.02 0.74 2.67 100

Consent Decree (3) Class I Area No. of Days > 0.5 dv 98th Percentile %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF %_Total ARCH 32 1.65 49.70 47.38 1.28 0.33 0.30 1.01 100 BAND 61 1.56 37.39 59.91 1.19 0.30 0.27 0.93 100 BLCA 30 1.15 31.11 65.99 1.28 0.33 0.28 1.02 100 CANY 57 1.73 52.51 43.96 1.55 0.40 0.35 1.23 100 CARE 18 0.82 91.30 1.66 3.11 0.79 0.69 2.46 100 GRCA 10 0.76 44.30 54.26 0.64 0.16 0.12 0.52 100 GRSA 17 0.71 28.48 69.87 0.74 0.19 0.13 0.60 100 LAGA 40 0.94 26.32 71.29 1.07 0.27 0.22 0.84 100 MABE 11 0.56 84.39 12.71 1.31 0.33 0.23 1.03 100 MEVE 162 3.53 85.08 5.44 4.14 1.06 1.04 3.24 100 PECO 41 1.09 41.87 56.64 0.66 0.17 0.13 0.53 100 PEFO 9 0.60 28.65 69.64 0.76 0.19 0.13 0.62 100 SAPE 109 2.01 46.15 47.36 2.82 0.72 0.76 2.19 100 WEEL 24 0.91 30.66 67.44 0.86 0.22 0.14 0.68 100 WEMI 83 1.48 57.20 35.77 3.02 0.77 0.91 2.32 100 WHPE 20 0.86 47.51 47.27 2.35 0.60 0.43 1.84 100

SNCR (1) Class I Area No. of Days > 0.5 dv 98th Percentile %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF %_Total ARCH 30 1.50 40.60 54.00 2.36 0.60 0.61 1.83 100 BAND 50 1.37 40.97 52.37 2.93 0.75 0.72 2.26 100 BLCA 27 1.00 39.08 58.62 1.04 0.27 0.17 0.82 100 CANY 50 1.61 44.41 50.77 2.07 0.53 0.61 1.60 100 CARE 13 0.72 39.07 58.93 0.88 0.22 0.18 0.71 100 GRCA 10 0.65 51.96 46.35 0.75 0.19 0.14 0.61 100 GRSA 10 0.62 34.26 61.88 1.73 0.44 0.32 1.36 100 LAGA 23 0.80 33.16 60.81 2.68 0.69 0.60 2.07 100 MABE 6 0.48 35.17 62.26 1.14 0.29 0.23 0.91 100 MEVE 157 3.22 78.22 10.20 4.95 1.26 1.53 3.83 100 PECO 35 0.94 49.33 48.91 0.78 0.20 0.15 0.62 100 PEFO 8 0.54 93.61 1.55 2.15 0.55 0.44 1.70 100 SAPE 97 1.80 40.29 54.47 2.29 0.58 0.58 1.79 100 WEEL 20 0.77 41.97 52.50 2.48 0.63 0.47 1.94 100 WEMI 62 1.35 39.83 58.09 0.91 0.23 0.23 0.71 100 WHPE 17 0.77 37.84 60.45 0.76 0.19 0.15 0.61 100PNM SJGS BART Modeling Nitrate Repartitioning - Monthly Varying NH3 Background 2003

Pre-Consent Decree (4) Class I Area No. of Days > 0.5 dv 98th Percentile %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF %_Total ARCH 39 1.82 38.16 50.64 2.67 1.63 2.75 4.15 100 BAND 77 1.51 40.84 49.83 2.33 1.43 1.94 3.63 100 BLCA 30 1.40 29.26 67.79 0.76 0.46 0.52 1.21 100 CANY 57 2.00 64.92 31.30 0.94 0.58 0.72 1.53 100 CARE 25 1.34 43.68 49.81 1.57 0.96 1.51 2.47 100 GRCA 11 0.81 91.83 0.94 1.83 1.12 1.34 2.94 100 GRSA 26 0.82 50.03 45.62 1.12 0.68 0.79 1.76 100 LAGA 40 1.14 25.27 67.60 2.02 1.24 0.66 3.22 100 MABE 15 0.63 36.60 57.88 1.53 0.94 0.65 2.41 100 MEVE 174 4.85 69.32 17.06 3.27 2.00 3.22 5.14 100 PECO 63 1.26 49.00 43.40 1.87 1.15 1.66 2.93 100 PEFO 17 0.74 88.02 6.36 1.46 0.90 0.89 2.36 100 SAPE 127 1.96 80.84 9.41 2.36 1.45 2.22 3.73 100 WEEL 31 0.94 25.57 71.56 0.70 0.43 0.61 1.12 100 WEMI 87 1.69 40.63 54.52 1.17 0.72 1.13 1.84 100 WHPE 48 1.05 48.42 48.68 0.78 0.48 0.39 1.25 100

Consent Decree (3) Class I Area No. of Days > 0.5 dv 98th Percentile %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF %_Total ARCH 27 1.49 30.95 67.01 0.89 0.23 0.21 0.71 100 BAND 57 1.20 77.97 17.21 2.11 0.54 0.52 1.65 100 BLCA 21 1.07 27.98 70.17 0.82 0.21 0.17 0.65 100 CANY 48 1.68 70.45 24.81 2.07 0.53 0.49 1.65 100 CARE 23 1.05 52.60 45.24 0.94 0.24 0.20 0.77 100 GRCA 9 0.57 93.89 1.17 2.19 0.56 0.46 1.74 100 GRSA 15 0.64 27.42 70.94 0.76 0.19 0.09 0.60 100 LAGA 28 0.90 23.76 71.98 1.99 0.51 0.18 1.58 100 MABE 8 0.51 27.63 69.59 1.22 0.31 0.28 0.97 100 MEVE 159 3.80 41.19 53.18 2.41 0.62 0.72 1.88 100 PECO 50 1.00 51.25 46.75 0.89 0.23 0.18 0.70 100 PEFO 9 0.53 32.43 65.01 1.15 0.29 0.18 0.93 100 SAPE 97 1.56 37.04 56.49 2.78 0.71 0.83 2.15 100 WEEL 22 0.83 28.10 67.91 1.74 0.44 0.44 1.36 100 WEMI 63 1.34 36.23 61.45 1.00 0.26 0.29 0.77 100 WHPE 27 0.89 91.09 5.38 1.60 0.41 0.26 1.25 100

SNCR (1) Class I Area No. of Days > 0.5 dv 98th Percentile %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF %_Total ARCH 24 1.27 75.50 21.82 1.18 0.30 0.26 0.94 100 BAND 50 1.15 81.84 13.09 2.22 0.57 0.55 1.73 100 BLCA 18 0.97 45.30 50.29 1.92 0.49 0.49 1.51 100 CANY 44 1.61 73.72 21.32 2.17 0.55 0.51 1.73 100 CARE 22 1.00 48.93 48.71 1.03 0.26 0.24 0.82 100 GRCA 8 0.57 94.20 0.84 2.19 0.56 0.46 1.74 100 GRSA 11 0.52 55.69 41.08 1.44 0.37 0.30 1.13 100 LAGA 14 0.78 53.34 43.35 1.47 0.37 0.33 1.14 100 MABE 6 0.44 32.33 64.40 1.43 0.37 0.33 1.13 100 MEVE 156 3.58 82.03 0.93 7.25 1.85 2.36 5.58 100 PECO 41 0.91 73.33 23.52 1.42 0.36 0.24 1.12 100 PEFO 8 0.50 90.77 5.30 1.76 0.45 0.31 1.41 100 SAPE 90 1.48 84.06 9.18 2.93 0.75 0.79 2.29 100 WEEL 14 0.71 33.15 62.15 2.05 0.52 0.52 1.60 100 WEMI 56 1.16 36.56 60.24 1.42 0.36 0.29 1.12 100 WHPE 22 0.75 29.49 65.94 2.03 0.52 0.44 1.59 100PNM SJGS BART Modeling - Unit 1 Nitrate Repartitioning - Monthly Varying NH3 Background 2001

Pre-Consent Decree (3) Class I Area No. of Days > 0.5 dv 98th Percentile %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF %_Total ARCH 16 0.82 25.92 68.87 1.30 0.79 1.06 2.06 100 BAND 1 0.31 41.96 53.16 1.24 0.75 0.94 1.95 100 BLCA 2 0.35 31.77 66.43 0.47 0.29 0.29 0.75 100 CANY 28 1.10 43.62 52.48 0.91 0.55 1.03 1.41 100 CARE 12 0.76 26.38 71.01 0.64 0.38 0.58 1.01 100 GRCA 5 0.31 31.06 66.09 0.72 0.44 0.52 1.17 100 GRSA 0 0.18 87.77 6.73 1.38 0.83 1.12 2.17 100 LAGA 1 0.26 36.35 60.88 0.72 0.44 0.46 1.16 100 MABE 0 0.18 23.69 72.07 1.08 0.65 0.82 1.69 100 MEVE 55 1.51 47.09 35.97 3.88 2.35 4.67 6.04 100 PECO 2 0.29 24.39 68.71 1.72 1.04 1.48 2.67 100 PEFO 2 0.25 84.76 11.37 0.99 0.60 0.69 1.59 100 SAPE 10 0.61 26.56 68.07 1.32 0.80 1.20 2.05 100 WEEL 2 0.27 31.55 66.50 0.52 0.31 0.29 0.82 100 WEMI 3 0.37 22.71 69.34 1.89 1.14 1.99 2.93 100 WHPE 2 0.24 27.68 69.49 0.76 0.46 0.42 1.20 100

Baseline - Consent Decree (2) Class I Area No. of Days > 0.5 dv 98th Percentile %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF %_Total ARCH 14 0.69 25.34 71.69 1.31 0.33 0.31 1.03 100 BAND 1 0.24 43.57 53.42 1.34 0.34 0.29 1.04 100 BLCA 2 0.29 23.45 74.26 0.99 0.25 0.26 0.78 100 CANY 22 1.00 38.19 59.52 1.01 0.26 0.23 0.80 100 CARE 11 0.57 26.93 71.52 0.67 0.17 0.17 0.53 100 GRCA 4 0.27 30.85 67.43 0.76 0.19 0.15 0.61 100 GRSA 0 0.14 21.45 76.75 0.80 0.20 0.17 0.63 100 LAGA 0 0.19 28.88 69.14 0.89 0.23 0.16 0.70 100 MABE 0 0.14 20.45 75.64 1.73 0.44 0.40 1.34 100 MEVE 38 1.35 35.69 59.62 2.00 0.51 0.63 1.55 100 PECO 1 0.23 25.62 70.23 1.82 0.47 0.44 1.41 100 PEFO 2 0.19 25.42 72.19 1.06 0.27 0.23 0.84 100 SAPE 7 0.44 27.36 69.47 1.39 0.36 0.35 1.08 100 WEEL 0 0.22 33.65 63.73 1.17 0.30 0.22 0.93 100 WEMI 2 0.31 30.63 61.38 3.48 0.89 0.91 2.70 100 WHPE 2 0.19 28.38 69.83 0.81 0.21 0.13 0.64 100

SNCR (1) Class I Area No. of Days > 0.5 dv 98th Percentile %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF %_Total ARCH 12 0.58 30.49 65.93 1.57 0.40 0.37 1.24 100 BAND 1 0.20 31.68 64.38 1.80 0.46 0.29 1.40 100 BLCA 1 0.23 29.45 67.68 1.25 0.32 0.33 0.98 100 CANY 20 0.87 42.24 55.66 0.93 0.24 0.20 0.74 100 CARE 7 0.46 33.38 64.70 0.83 0.21 0.21 0.66 100 GRCA 2 0.22 37.68 60.22 0.93 0.24 0.19 0.75 100 GRSA 0 0.12 80.37 13.49 2.82 0.72 0.39 2.21 100 LAGA 0 0.16 32.01 63.24 2.11 0.54 0.47 1.64 100 MABE 0 0.11 25.74 69.34 2.18 0.56 0.50 1.69 100 MEVE 31 1.19 33.44 64.17 1.02 0.26 0.32 0.79 100 PECO 0 0.19 33.00 64.36 1.19 0.30 0.22 0.93 100 PEFO 1 0.17 33.24 64.57 0.95 0.24 0.26 0.74 100 SAPE 6 0.36 33.46 62.66 1.70 0.44 0.42 1.32 100 WEEL 0 0.18 40.97 55.84 1.43 0.36 0.27 1.13 100 WEMI 2 0.25 30.21 64.02 2.49 0.64 0.72 1.93 100 WHPE 1 0.16 44.25 53.24 1.14 0.29 0.19 0.89 100PNM SJGS BART Modeling - Unit 1 Nitrate Repartitioning - Monthly Varying NH3 Background 2002

Pre-Consent Decree (3) Class I Area No. of Days > 0.5 dv 98th Percentile %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF %_Total ARCH 11 0.68 24.06 72.39 0.91 0.55 0.63 1.46 100 BAND 7 0.49 50.26 40.84 2.33 1.41 1.50 3.66 100 BLCA 4 0.37 19.24 76.63 0.99 0.60 0.99 1.55 100 CANY 16 0.84 30.14 66.46 0.85 0.51 0.67 1.36 100 CARE 4 0.23 29.36 68.45 0.54 0.33 0.45 0.87 100 GRCA 1 0.21 42.87 54.86 0.58 0.35 0.37 0.97 100 GRSA 0 0.20 27.46 69.95 0.68 0.41 0.39 1.10 100 LAGA 0 0.28 23.68 72.69 0.93 0.56 0.66 1.48 100 MABE 0 0.16 27.20 65.28 2.09 1.27 0.76 3.40 100 MEVE 73 1.79 37.50 56.98 1.29 0.78 1.40 2.05 100 PECO 3 0.31 38.08 53.60 2.22 1.34 1.25 3.51 100 PEFO 2 0.16 28.11 69.15 0.71 0.43 0.44 1.17 100 SAPE 27 0.73 26.46 67.64 1.45 0.88 1.29 2.29 100 WEEL 1 0.28 23.98 70.42 1.36 0.82 1.31 2.11 100 WEMI 9 0.54 43.96 46.81 2.18 1.32 2.34 3.39 100 WHPE 0 0.25 30.07 67.71 0.57 0.35 0.39 0.92 100

Baseline - Consent Decree (2) Class I Area No. of Days > 0.5 dv 98th Percentile %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF %_Total ARCH 9 0.54 23.97 72.89 1.37 0.35 0.35 1.07 100 BAND 4 0.40 31.04 66.80 0.95 0.24 0.22 0.75 100 BLCA 1 0.29 25.16 72.63 0.98 0.25 0.20 0.78 100 CANY 13 0.65 23.43 73.82 1.20 0.31 0.31 0.94 100 CARE 3 0.18 31.45 66.94 0.71 0.18 0.15 0.57 100 GRCA 1 0.16 43.73 54.87 0.62 0.16 0.11 0.51 100 GRSA 0 0.14 27.52 70.87 0.72 0.19 0.12 0.58 100 LAGA 0 0.21 25.77 71.45 1.20 0.31 0.33 0.94 100 MABE 0 0.12 26.89 71.16 0.87 0.22 0.16 0.69 100 MEVE 52 1.40 60.18 31.05 3.70 0.95 1.26 2.86 100 PECO 3 0.24 40.91 57.63 0.65 0.17 0.13 0.52 100 PEFO 0 0.13 28.41 69.90 0.75 0.19 0.13 0.62 100 SAPE 16 0.59 26.83 69.85 1.45 0.37 0.35 1.14 100 WEEL 0 0.20 24.64 72.13 1.40 0.36 0.38 1.09 100 WEMI 6 0.43 24.32 73.64 0.90 0.23 0.19 0.72 100 WHPE 0 0.17 31.55 67.09 0.60 0.15 0.12 0.49 100

SNCR (1) Class I Area No. of Days > 0.5 dv 98th Percentile %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF %_Total ARCH 5 0.44 29.61 66.50 1.70 0.43 0.43 1.32 100 BAND 4 0.33 37.84 59.53 1.15 0.30 0.27 0.91 100 BLCA 0 0.23 31.64 65.58 1.23 0.31 0.25 0.98 100 CANY 9 0.53 29.21 67.36 1.49 0.38 0.39 1.17 100 CARE 1 0.15 38.51 59.52 0.86 0.22 0.18 0.70 100 GRCA 0 0.14 51.64 46.71 0.73 0.19 0.13 0.60 100 GRSA 0 0.13 34.43 61.81 1.69 0.43 0.31 1.33 100 LAGA 0 0.17 31.97 64.58 1.49 0.38 0.41 1.16 100 MABE 0 0.10 34.91 59.18 2.72 0.70 0.28 2.21 100 MEVE 45 1.24 57.38 30.54 5.12 1.31 1.69 3.95 100 PECO 1 0.21 49.72 46.50 1.68 0.43 0.35 1.33 100 PEFO 0 0.11 34.26 63.03 1.21 0.31 0.19 1.00 100 SAPE 7 0.48 33.05 62.86 1.79 0.46 0.44 1.41 100 WEEL 0 0.16 30.57 65.44 1.74 0.45 0.47 1.35 100 WEMI 1 0.36 52.83 41.13 2.59 0.66 0.78 2.01 100 WHPE 0 0.14 38.69 59.63 0.74 0.19 0.15 0.60 100PNM SJGS BART Modeling - Unit 1 Nitrate Repartitioning - Monthly Varying NH3 Background 2003

Pre-Consent Decree (3) Class I Area No. of Days > 0.5 dv 98th Percentile %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF %_Total ARCH 9 0.60 28.75 65.62 1.35 0.81 1.33 2.14 100 BAND 8 0.54 22.07 72.47 1.34 0.81 1.23 2.09 100 BLCA 2 0.38 34.19 62.97 0.72 0.43 0.54 1.15 100 CANY 14 0.71 29.97 59.10 2.54 1.54 2.91 3.94 100 CARE 3 0.32 86.40 1.13 3.02 1.83 2.88 4.74 100 GRCA 0 0.16 51.56 42.85 1.42 0.86 1.00 2.30 100 GRSA 1 0.17 19.79 77.41 0.69 0.42 0.59 1.10 100 LAGA 2 0.29 36.29 60.25 0.89 0.54 0.59 1.44 100 MABE 0 0.16 31.87 65.36 0.70 0.42 0.53 1.12 100 MEVE 60 1.67 38.31 45.74 3.66 2.22 4.38 5.69 100 PECO 3 0.35 51.53 42.28 1.61 0.98 1.01 2.59 100 PEFO 0 0.14 31.20 64.81 1.05 0.64 0.58 1.73 100 SAPE 13 0.63 34.16 60.15 1.34 0.81 1.43 2.10 100 WEEL 0 0.25 23.83 70.37 1.42 0.86 1.27 2.25 100 WEMI 4 0.45 21.90 69.56 2.19 1.33 1.52 3.49 100 WHPE 1 0.26 22.07 72.11 1.47 0.89 1.11 2.34 100

Baseline - Consent Decree (2) Class I Area No. of Days > 0.5 dv 98th Percentile %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF %_Total ARCH 9 0.52 29.53 67.07 1.47 0.38 0.40 1.16 100 BAND 3 0.37 23.82 72.96 1.41 0.36 0.36 1.10 100 BLCA 0 0.28 25.40 72.77 0.80 0.20 0.19 0.64 100 CANY 12 0.57 38.31 60.22 0.65 0.17 0.14 0.52 100 CARE 2 0.23 31.26 65.22 1.53 0.39 0.39 1.20 100 GRCA 0 0.12 52.37 44.18 1.52 0.39 0.31 1.22 100 GRSA 1 0.14 27.01 70.46 1.12 0.29 0.22 0.89 100 LAGA 0 0.21 20.74 75.52 1.71 0.44 0.17 1.41 100 MABE 0 0.11 33.14 63.55 1.53 0.39 0.19 1.20 100 MEVE 48 1.27 41.93 48.61 4.01 1.03 1.33 3.10 100 PECO 1 0.27 46.70 51.27 0.91 0.23 0.15 0.73 100 PEFO 0 0.11 31.59 65.92 1.12 0.29 0.18 0.91 100 SAPE 7 0.50 26.74 68.42 2.08 0.53 0.62 1.61 100 WEEL 0 0.20 20.88 76.49 1.15 0.30 0.29 0.90 100 WEMI 3 0.35 45.71 42.80 4.96 1.27 1.43 3.84 100 WHPE 0 0.20 22.74 73.74 1.56 0.40 0.34 1.23 100

SNCR (1) Class I Area No. of Days > 0.5 dv 98th Percentile %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF %_Total ARCH 6 0.45 58.05 39.91 0.90 0.23 0.19 0.72 100 BAND 1 0.30 29.57 66.43 1.75 0.45 0.44 1.36 100 BLCA 0 0.23 31.76 65.95 1.00 0.26 0.23 0.80 100 CANY 7 0.49 57.57 40.40 0.89 0.23 0.19 0.72 100 CARE 2 0.21 94.25 1.16 2.01 0.51 0.47 1.60 100 GRCA 0 0.12 94.04 1.01 2.19 0.56 0.45 1.75 100 GRSA 0 0.12 33.39 63.49 1.39 0.36 0.27 1.11 100 LAGA 0 0.17 42.31 54.78 1.28 0.33 0.31 1.00 100 MABE 0 0.09 40.33 55.64 1.86 0.48 0.23 1.46 100 MEVE 43 1.13 47.22 42.12 4.52 1.16 1.50 3.49 100 PECO 1 0.23 60.82 34.74 1.99 0.51 0.36 1.59 100 PEFO 0 0.10 90.57 5.52 1.74 0.45 0.32 1.40 100 SAPE 5 0.43 32.86 61.98 2.22 0.57 0.65 1.72 100 WEEL 0 0.17 43.51 54.53 0.86 0.22 0.20 0.69 100 WEMI 2 0.30 30.17 62.47 3.19 0.82 0.87 2.48 100 WHPE 0 0.18 42.56 55.63 0.80 0.20 0.17 0.64 100PNM SJGS BART Modeling - Unit 2 Nitrate Repartitioning - Monthly Varying NH3 Background 2001

Pre-Consent Decree (3) Class I Area No. of Days > 0.5 dv 98th Percentile %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF %_Total ARCH 16 0.83 25.00 69.90 1.28 0.78 1.04 2.02 100 BAND 1 0.32 25.12 71.09 1.01 0.61 0.61 1.57 100 BLCA 3 0.36 23.37 71.60 1.28 0.78 0.99 1.98 100 CANY 27 1.07 40.57 55.69 0.86 0.53 1.00 1.35 100 CARE 12 0.78 25.24 72.22 0.62 0.38 0.56 0.99 100 GRCA 5 0.31 29.84 67.36 0.71 0.43 0.51 1.15 100 GRSA 0 0.19 32.82 57.23 2.66 1.62 1.52 4.16 100 LAGA 0 0.26 34.98 62.29 0.71 0.43 0.46 1.14 100 MABE 0 0.18 19.11 76.53 1.10 0.67 0.86 1.73 100 MEVE 56 1.49 45.92 37.44 3.81 2.32 4.60 5.92 100 PECO 2 0.29 84.16 9.33 1.63 0.99 1.33 2.56 100 PEFO 2 0.25 23.63 72.55 0.97 0.59 0.72 1.54 100 SAPE 11 0.63 25.41 69.31 1.29 0.79 1.19 2.01 100 WEEL 1 0.27 30.10 67.99 0.51 0.31 0.29 0.80 100 WEMI 3 0.38 31.78 59.74 2.05 1.25 1.98 3.19 100 WHPE 2 0.24 26.23 70.99 0.74 0.45 0.42 1.17 100

Baseline - Consent Decree (2) Class I Area No. of Days > 0.5 dv 98th Percentile %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF %_Total ARCH 14 0.69 25.31 71.71 1.31 0.34 0.31 1.02 100 BAND 1 0.23 43.57 53.42 1.34 0.34 0.29 1.03 100 BLCA 2 0.28 23.45 74.26 1.00 0.26 0.26 0.77 100 CANY 22 0.99 38.13 59.58 1.01 0.26 0.23 0.80 100 CARE 10 0.57 26.92 71.52 0.68 0.17 0.17 0.53 100 GRCA 4 0.27 30.84 67.43 0.76 0.20 0.15 0.61 100 GRSA 0 0.14 21.45 76.75 0.80 0.21 0.17 0.62 100 LAGA 0 0.19 28.87 69.14 0.89 0.23 0.16 0.70 100 MABE 0 0.14 20.45 75.64 1.74 0.44 0.40 1.33 100 MEVE 38 1.35 35.54 59.78 2.00 0.51 0.63 1.53 100 PECO 1 0.23 25.62 70.23 1.83 0.47 0.44 1.40 100 PEFO 2 0.19 25.42 72.18 1.07 0.27 0.23 0.83 100 SAPE 7 0.44 27.35 69.47 1.40 0.36 0.35 1.07 100 WEEL 0 0.22 33.65 63.72 1.18 0.30 0.22 0.92 100 WEMI 2 0.31 30.63 61.38 3.50 0.90 0.91 2.69 100 WHPE 2 0.18 28.38 69.83 0.82 0.21 0.13 0.64 100

SNCR (1) Class I Area No. of Days > 0.5 dv 98th Percentile %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF %_Total ARCH 12 0.57 30.47 65.95 1.58 0.40 0.37 1.23 100 BAND 1 0.20 31.69 64.37 1.81 0.46 0.29 1.39 100 BLCA 1 0.23 29.45 67.67 1.25 0.32 0.33 0.97 100 CANY 20 0.87 42.22 55.67 0.93 0.24 0.20 0.74 100 CARE 7 0.46 33.38 64.70 0.84 0.21 0.21 0.66 100 GRCA 2 0.22 37.68 60.22 0.93 0.24 0.19 0.75 100 GRSA 0 0.12 42.29 50.10 3.47 0.89 0.57 2.68 100 LAGA 0 0.16 32.01 63.23 2.12 0.54 0.47 1.63 100 MABE 0 0.11 25.74 69.33 2.19 0.56 0.50 1.68 100 MEVE 31 1.19 33.43 64.17 1.02 0.26 0.32 0.79 100 PECO 0 0.19 33.00 64.36 1.19 0.31 0.22 0.93 100 PEFO 1 0.17 33.24 64.56 0.95 0.24 0.26 0.74 100 SAPE 6 0.36 33.45 62.66 1.71 0.44 0.42 1.31 100 WEEL 0 0.18 40.97 55.84 1.43 0.37 0.27 1.12 100 WEMI 2 0.25 30.20 64.01 2.50 0.64 0.73 1.92 100 WHPE 1 0.16 44.25 53.24 1.14 0.29 0.19 0.89 100PNM SJGS BART Modeling - Unit 2 Nitrate Repartitioning - Monthly Varying NH3 Background 2002

Pre-Consent Decree (3) Class I Area No. of Days > 0.5 dv 98th Percentile %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF %_Total ARCH 11 0.64 26.15 67.85 1.45 0.89 1.39 2.27 100 BAND 7 0.50 48.55 42.63 2.30 1.40 1.49 3.62 100 BLCA 4 0.37 18.38 77.59 0.97 0.59 0.97 1.51 100 CANY 15 0.83 28.77 67.90 0.83 0.51 0.66 1.33 100 CARE 4 0.23 27.98 69.89 0.53 0.32 0.44 0.85 100 GRCA 1 0.20 40.86 56.90 0.57 0.35 0.37 0.95 100 GRSA 0 0.21 26.11 71.35 0.67 0.41 0.39 1.08 100 LAGA 0 0.29 22.65 73.82 0.90 0.55 0.64 1.44 100 MABE 0 0.16 26.26 66.39 2.05 1.25 0.74 3.32 100 MEVE 72 1.82 36.41 58.08 1.29 0.79 1.39 2.04 100 PECO 3 0.31 36.65 55.19 2.17 1.32 1.23 3.43 100 PEFO 2 0.16 26.72 70.61 0.69 0.42 0.43 1.13 100 SAPE 28 0.73 25.48 68.66 1.43 0.87 1.28 2.26 100 WEEL 1 0.29 22.95 71.57 1.32 0.81 1.29 2.06 100 WEMI 9 0.56 18.60 76.08 1.26 0.77 1.32 1.97 100 WHPE 0 0.26 28.49 69.36 0.55 0.33 0.38 0.89 100

Baseline - Consent Decree (2) Class I Area No. of Days > 0.5 dv 98th Percentile %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF %_Total ARCH 9 0.54 23.96 72.89 1.38 0.35 0.35 1.07 100 BAND 4 0.40 31.03 66.81 0.95 0.24 0.22 0.74 100 BLCA 1 0.29 25.16 72.63 0.98 0.25 0.20 0.78 100 CANY 13 0.65 23.42 73.82 1.20 0.31 0.31 0.93 100 CARE 3 0.18 31.45 66.94 0.71 0.18 0.15 0.57 100 GRCA 1 0.16 43.73 54.87 0.62 0.16 0.11 0.51 100 GRSA 0 0.14 27.52 70.87 0.73 0.19 0.12 0.58 100 LAGA 0 0.21 25.77 71.45 1.21 0.31 0.33 0.93 100 MABE 0 0.11 26.89 71.16 0.88 0.22 0.16 0.69 100 MEVE 52 1.40 60.02 31.23 3.71 0.95 1.25 2.84 100 PECO 3 0.24 40.91 57.63 0.65 0.17 0.13 0.52 100 PEFO 0 0.13 28.41 69.90 0.75 0.19 0.13 0.61 100 SAPE 16 0.58 26.82 69.85 1.46 0.37 0.35 1.14 100 WEEL 0 0.20 24.64 72.13 1.41 0.36 0.38 1.08 100 WEMI 6 0.42 24.31 73.65 0.91 0.23 0.19 0.72 100 WHPE 0 0.17 31.55 67.09 0.61 0.16 0.12 0.48 100

SNCR (1) Class I Area No. of Days > 0.5 dv 98th Percentile %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF %_Total ARCH 5 0.44 29.61 66.50 1.70 0.44 0.43 1.32 100 BAND 4 0.33 37.84 59.53 1.16 0.30 0.27 0.91 100 BLCA 0 0.23 31.64 65.58 1.23 0.32 0.25 0.98 100 CANY 9 0.52 29.20 67.36 1.50 0.38 0.39 1.17 100 CARE 1 0.15 36.80 61.56 0.72 0.18 0.17 0.57 100 GRCA 0 0.14 51.64 46.70 0.73 0.19 0.13 0.60 100 GRSA 0 0.13 34.43 61.80 1.70 0.43 0.31 1.32 100 LAGA 0 0.17 31.97 64.58 1.50 0.38 0.41 1.15 100 MABE 0 0.10 34.91 59.18 2.74 0.70 0.28 2.19 100 MEVE 44 1.24 57.35 30.56 5.14 1.32 1.70 3.93 100 PECO 1 0.21 49.71 46.50 1.68 0.43 0.35 1.32 100 PEFO 0 0.11 34.26 63.03 1.22 0.31 0.19 0.99 100 SAPE 7 0.48 33.05 62.86 1.80 0.46 0.44 1.40 100 WEEL 0 0.16 30.56 65.43 1.75 0.45 0.47 1.34 100 WEMI 1 0.36 52.82 41.13 2.61 0.67 0.78 1.99 100 WHPE 0 0.14 38.69 59.63 0.75 0.19 0.15 0.59 100PNM SJGS BART Modeling - Unit 2 Nitrate Repartitioning - Monthly Varying NH3 Background 2003

Pre-Consent Decree (3) Class I Area No. of Days > 0.5 dv 98th Percentile %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF %_Total ARCH 9 0.58 26.09 65.91 1.91 1.16 1.95 2.97 100 BAND 8 0.54 21.18 73.48 1.31 0.80 1.19 2.04 100 BLCA 3 0.39 31.74 65.45 0.70 0.43 0.55 1.12 100 CANY 13 0.72 29.11 60.16 2.49 1.52 2.85 3.87 100 CARE 3 0.31 86.04 1.21 3.09 1.88 2.94 4.84 100 GRCA 0 0.16 49.96 44.45 1.42 0.86 1.00 2.29 100 GRSA 1 0.17 25.45 72.07 0.69 0.42 0.28 1.09 100 LAGA 1 0.29 19.38 74.87 1.61 0.98 0.49 2.66 100 MABE 0 0.16 31.67 65.36 0.73 0.45 0.63 1.16 100 MEVE 60 1.66 38.26 45.78 3.66 2.23 4.39 5.68 100 PECO 3 0.36 20.30 74.98 1.21 0.74 0.82 1.96 100 PEFO 0 0.14 69.40 24.51 1.58 0.96 0.97 2.58 100 SAPE 13 0.64 24.73 67.13 1.92 1.17 2.07 2.99 100 WEEL 0 0.26 22.86 71.46 1.39 0.85 1.25 2.20 100 WEMI 4 0.44 37.67 57.85 1.06 0.65 1.12 1.65 100 WHPE 1 0.26 32.19 65.39 0.61 0.37 0.45 0.98 100

Baseline - Consent Decree (2) Class I Area No. of Days > 0.5 dv 98th Percentile %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF %_Total ARCH 9 0.52 29.52 67.08 1.47 0.38 0.40 1.15 100 BAND 3 0.37 23.81 72.96 1.42 0.36 0.36 1.09 100 BLCA 0 0.28 25.40 72.77 0.80 0.21 0.19 0.64 100 CANY 12 0.57 38.31 60.22 0.65 0.17 0.14 0.52 100 CARE 2 0.23 31.25 65.23 1.54 0.39 0.39 1.20 100 GRCA 0 0.12 52.36 44.18 1.53 0.39 0.31 1.22 100 GRSA 1 0.14 27.01 70.46 1.13 0.29 0.22 0.89 100 LAGA 0 0.21 20.74 75.52 1.72 0.44 0.17 1.40 100 MABE 0 0.11 33.14 63.55 1.54 0.39 0.19 1.19 100 MEVE 48 1.26 41.89 48.65 4.03 1.03 1.33 3.08 100 PECO 1 0.27 46.68 51.28 0.92 0.24 0.15 0.73 100 PEFO 0 0.11 72.61 23.59 1.70 0.44 0.30 1.37 100 SAPE 7 0.50 26.73 68.43 2.09 0.53 0.62 1.60 100 WEEL 0 0.20 20.87 76.49 1.16 0.30 0.29 0.89 100 WEMI 3 0.35 45.70 42.79 4.98 1.28 1.43 3.82 100 WHPE 0 0.20 22.74 73.73 1.56 0.40 0.34 1.22 100

SNCR (1) Class I Area No. of Days > 0.5 dv 98th Percentile %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF %_Total ARCH 6 0.44 58.04 39.92 0.90 0.23 0.19 0.72 100 BAND 1 0.30 29.57 66.43 1.76 0.45 0.44 1.35 100 BLCA 0 0.22 31.76 65.95 1.01 0.26 0.23 0.79 100 CANY 6 0.48 57.56 40.42 0.90 0.23 0.19 0.72 100 CARE 2 0.21 94.24 1.16 2.02 0.52 0.47 1.59 100 GRCA 0 0.12 94.04 1.01 2.20 0.56 0.45 1.74 100 GRSA 0 0.12 33.39 63.49 1.39 0.36 0.27 1.10 100 LAGA 0 0.17 42.31 54.78 1.28 0.33 0.31 0.99 100 MABE 0 0.09 40.34 55.63 1.87 0.48 0.23 1.45 100 MEVE 43 1.13 47.19 42.16 4.53 1.16 1.50 3.47 100 PECO 1 0.23 60.82 34.73 2.00 0.51 0.36 1.58 100 PEFO 0 0.10 90.57 5.52 1.75 0.45 0.32 1.39 100 SAPE 5 0.43 32.82 62.02 2.23 0.57 0.65 1.71 100 WEEL 0 0.17 43.51 54.53 0.86 0.22 0.20 0.68 100 WEMI 2 0.30 30.17 62.46 3.20 0.82 0.88 2.47 100 WHPE 0 0.17 42.56 55.63 0.80 0.21 0.17 0.64 100PNM SJGS BART Modeling - Unit 3 Nitrate Repartitioning - Monthly Varying NH3 Background 2001

Pre-Consent Decree (3) Class I Area No. of Days > 0.5 dv 98th Percentile %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF %_Total ARCH 18 1.04 37.90 59.89 0.56 0.35 0.41 0.89 100 BAND 9 0.53 76.32 16.85 1.73 1.07 1.30 2.73 100 BLCA 10 0.58 27.65 66.71 1.42 0.87 1.14 2.21 100 CANY 35 1.44 35.63 61.86 0.63 0.39 0.48 1.02 100 CARE 17 1.10 29.96 67.35 0.65 0.40 0.61 1.03 100 GRCA 7 0.48 30.18 67.22 0.65 0.40 0.53 1.03 100 GRSA 1 0.28 76.24 15.49 2.27 1.39 1.03 3.58 100 LAGA 4 0.40 39.72 57.57 0.70 0.43 0.45 1.13 100 MABE 1 0.24 35.97 61.92 0.56 0.35 0.32 0.89 100 MEVE 100 1.92 53.68 38.69 1.83 1.12 1.82 2.86 100 PECO 6 0.48 51.34 44.27 1.13 0.69 0.80 1.77 100 PEFO 5 0.43 86.46 10.06 0.89 0.55 0.62 1.42 100 SAPE 31 0.88 30.39 63.58 1.46 0.90 1.41 2.26 100 WEEL 6 0.38 37.70 56.66 1.47 0.91 0.92 2.33 100 WEMI 9 0.59 26.83 67.21 1.46 0.90 1.33 2.28 100 WHPE 5 0.37 29.53 67.67 0.74 0.45 0.44 1.17 100

Baseline - Consent Decree (2) Class I Area No. of Days > 0.5 dv 98th Percentile %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF %_Total ARCH 18 0.89 35.30 62.84 0.82 0.21 0.17 0.66 100 BAND 3 0.39 26.98 70.54 1.12 0.28 0.21 0.87 100 BLCA 4 0.44 25.68 71.04 1.46 0.37 0.33 1.12 100 CANY 29 1.15 32.46 66.00 0.68 0.17 0.15 0.54 100 CARE 14 0.86 26.87 71.56 0.68 0.17 0.18 0.54 100 GRCA 5 0.35 27.44 70.95 0.71 0.18 0.17 0.56 100 GRSA 0 0.21 36.16 57.33 2.97 0.75 0.50 2.30 100 LAGA 1 0.29 25.67 70.62 1.64 0.42 0.37 1.27 100 MABE 0 0.20 33.23 64.11 1.21 0.30 0.21 0.95 100 MEVE 64 1.56 52.43 37.30 4.36 1.10 1.46 3.35 100 PECO 3 0.35 87.02 9.06 1.73 0.44 0.41 1.34 100 PEFO 2 0.29 85.92 11.67 1.07 0.27 0.21 0.85 100 SAPE 18 0.70 27.84 68.80 1.47 0.37 0.39 1.13 100 WEEL 4 0.30 34.05 62.90 1.38 0.35 0.24 1.08 100 WEMI 6 0.44 21.26 75.66 1.32 0.33 0.40 1.03 100 WHPE 2 0.28 27.58 70.65 0.80 0.20 0.14 0.63 100

SNCR (1) Class I Area No. of Days > 0.5 dv 98th Percentile %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF %_Total ARCH 17 0.79 40.17 57.68 0.95 0.24 0.20 0.76 100 BAND 1 0.32 30.96 65.01 1.85 0.47 0.30 1.42 100 BLCA 3 0.36 31.46 64.52 1.79 0.45 0.41 1.37 100 CANY 27 1.01 49.69 47.77 1.08 0.27 0.35 0.83 100 CARE 12 0.71 33.00 65.07 0.84 0.21 0.22 0.66 100 GRCA 4 0.28 38.94 58.92 0.95 0.24 0.20 0.76 100 GRSA 0 0.18 80.39 13.47 2.83 0.71 0.39 2.21 100 LAGA 0 0.26 82.76 12.56 2.07 0.52 0.47 1.61 100 MABE 0 0.16 40.46 56.29 1.47 0.37 0.26 1.15 100 MEVE 57 1.50 75.56 6.27 7.69 1.94 2.65 5.89 100 PECO 2 0.29 37.38 59.81 1.31 0.33 0.16 1.02 100 PEFO 2 0.27 33.14 64.66 0.95 0.24 0.27 0.73 100 SAPE 10 0.59 33.16 62.84 1.75 0.44 0.47 1.34 100 WEEL 1 0.25 41.35 54.94 1.68 0.42 0.29 1.31 100 WEMI 2 0.36 31.69 63.95 1.91 0.48 0.50 1.47 100 WHPE 2 0.22 64.07 31.10 2.15 0.54 0.46 1.67 100PNM SJGS BART Modeling - Unit 3 Nitrate Repartitioning - Monthly Varying NH3 Background 2002

Pre-Consent Decree (3) Class I Area No. of Days > 0.5 dv 98th Percentile %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF %_Total ARCH 15 0.81 31.17 63.37 1.30 0.80 1.33 2.03 100 BAND 20 0.81 28.33 63.99 1.89 1.16 1.69 2.94 100 BLCA 9 0.53 21.84 73.75 1.06 0.65 1.04 1.65 100 CANY 22 1.04 23.62 71.52 1.13 0.70 1.26 1.76 100 CARE 5 0.38 34.41 62.98 0.66 0.40 0.48 1.07 100 GRCA 3 0.33 45.95 51.86 0.55 0.34 0.36 0.92 100 GRSA 3 0.33 82.46 13.08 1.16 0.71 0.76 1.83 100 LAGA 5 0.44 25.09 67.37 1.91 1.17 1.50 2.97 100 MABE 0 0.25 28.79 63.57 2.12 1.30 0.81 3.42 100 MEVE 95 2.18 50.54 42.30 1.67 1.03 1.84 2.63 100 PECO 8 0.52 43.31 54.53 0.56 0.34 0.37 0.89 100 PEFO 5 0.25 91.13 1.98 1.75 1.08 1.27 2.80 100 SAPE 43 1.03 34.16 58.88 1.69 1.04 1.59 2.64 100 WEEL 5 0.42 34.33 58.68 1.81 1.11 1.22 2.86 100 WEMI 23 0.82 31.35 66.25 0.58 0.36 0.54 0.92 100 WHPE 3 0.39 33.90 60.27 1.53 0.94 0.95 2.41 100

Baseline - Consent Decree (2) Class I Area No. of Days > 0.5 dv 98th Percentile %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF %_Total ARCH 12 0.65 29.26 66.96 1.65 0.42 0.45 1.27 100 BAND 10 0.57 52.51 41.86 2.54 0.64 0.47 1.97 100 BLCA 5 0.41 28.10 70.16 0.78 0.20 0.14 0.62 100 CANY 17 0.85 30.97 66.94 0.92 0.23 0.21 0.73 100 CARE 5 0.26 91.08 1.83 3.13 0.79 0.70 2.47 100 GRCA 3 0.24 42.65 55.95 0.62 0.16 0.12 0.51 100 GRSA 0 0.24 27.92 70.46 0.73 0.18 0.12 0.58 100 LAGA 1 0.33 22.49 73.90 1.64 0.41 0.29 1.26 100 MABE 0 0.18 27.59 70.65 0.80 0.20 0.13 0.63 100 MEVE 76 1.90 42.51 53.81 1.58 0.40 0.48 1.23 100 PECO 5 0.36 30.99 66.44 1.17 0.30 0.18 0.91 100 PEFO 3 0.18 28.46 69.86 0.75 0.19 0.13 0.61 100 SAPE 34 0.81 28.26 67.95 1.66 0.42 0.43 1.29 100 WEEL 4 0.33 32.22 63.43 1.95 0.49 0.38 1.52 100 WEMI 16 0.64 31.41 61.73 2.93 0.74 0.94 2.25 100 WHPE 0 0.31 44.36 54.39 0.55 0.14 0.11 0.44 100

SNCR (1) Class I Area No. of Days > 0.5 dv 98th Percentile %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF %_Total ARCH 10 0.54 35.39 60.04 1.99 0.50 0.54 1.53 100 BAND 8 0.50 37.47 59.77 1.22 0.31 0.27 0.96 100 BLCA 4 0.33 34.88 62.96 0.97 0.24 0.17 0.76 100 CANY 14 0.71 37.34 60.15 1.11 0.28 0.25 0.88 100 CARE 4 0.23 38.68 59.34 0.87 0.22 0.18 0.70 100 GRCA 1 0.20 50.52 47.83 0.73 0.18 0.14 0.60 100 GRSA 0 0.20 33.71 62.43 1.74 0.44 0.32 1.36 100 LAGA 0 0.28 39.01 59.09 0.84 0.21 0.18 0.66 100 MABE 0 0.16 34.97 59.07 2.76 0.70 0.30 2.21 100 MEVE 73 1.75 46.72 49.24 1.73 0.44 0.52 1.35 100 PECO 3 0.30 46.55 47.29 2.80 0.71 0.46 2.19 100 PEFO 0 0.17 93.49 1.65 2.16 0.55 0.44 1.70 100 SAPE 23 0.67 34.23 61.17 2.01 0.51 0.52 1.56 100 WEEL 1 0.27 39.32 55.42 2.36 0.60 0.46 1.84 100 WEMI 9 0.54 25.98 69.95 1.75 0.44 0.52 1.35 100 WHPE 0 0.26 52.36 46.16 0.65 0.17 0.13 0.52 100PNM SJGS BART Modeling - Unit 3 Nitrate Repartitioning - Monthly Varying NH3 Background 2003

Pre-Consent Decree (3) Class I Area No. of Days > 0.5 dv 98th Percentile %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF %_Total ARCH 14 0.72 30.15 61.20 2.06 1.26 2.13 3.19 100 BAND 15 0.71 23.24 69.03 1.92 1.18 1.63 2.99 100 BLCA 9 0.59 23.67 72.71 0.88 0.54 0.82 1.38 100 CANY 19 0.96 32.66 55.96 2.65 1.63 2.99 4.11 100 CARE 9 0.52 48.88 48.12 0.75 0.46 0.56 1.23 100 GRCA 3 0.26 91.93 1.11 1.76 1.08 1.29 2.83 100 GRSA 3 0.27 49.52 46.33 1.06 0.65 0.76 1.68 100 LAGA 5 0.43 22.09 71.73 1.75 1.07 0.58 2.78 100 MABE 0 0.25 27.57 67.94 1.12 0.69 0.91 1.76 100 MEVE 92 2.14 70.75 6.38 5.19 3.19 6.44 8.05 100 PECO 12 0.58 54.64 39.46 1.53 0.94 0.97 2.45 100 PEFO 1 0.24 88.09 6.50 1.41 0.87 0.86 2.28 100 SAPE 34 0.88 39.44 54.36 1.46 0.90 1.58 2.27 100 WEEL 4 0.38 22.78 73.96 0.83 0.51 0.60 1.31 100 WEMI 15 0.65 30.94 64.97 1.04 0.64 0.76 1.65 100 WHPE 4 0.37 24.02 69.82 1.56 0.96 1.20 2.46 100

Baseline - Consent Decree (2) Class I Area No. of Days > 0.5 dv 98th Percentile %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF %_Total ARCH 9 0.66 29.12 65.81 2.19 0.55 0.65 1.68 100 BAND 8 0.61 31.91 64.13 1.75 0.44 0.40 1.36 100 BLCA 7 0.46 33.18 65.04 0.79 0.20 0.18 0.62 100 CANY 14 0.79 32.64 60.84 2.79 0.70 0.88 2.14 100 CARE 4 0.36 91.10 1.19 3.36 0.85 0.90 2.60 100 GRCA 0 0.19 52.76 43.76 1.54 0.39 0.32 1.23 100 GRSA 1 0.21 23.53 72.94 1.57 0.40 0.34 1.22 100 LAGA 3 0.33 21.25 74.88 1.79 0.45 0.16 1.47 100 MABE 0 0.18 22.58 74.94 1.09 0.27 0.27 0.85 100 MEVE 64 1.74 43.30 46.82 4.20 1.06 1.40 3.22 100 PECO 5 0.42 34.27 62.29 1.50 0.38 0.39 1.16 100 PEFO 1 0.17 72.31 23.90 1.69 0.43 0.30 1.36 100 SAPE 18 0.72 27.03 68.03 2.14 0.54 0.62 1.64 100 WEEL 2 0.35 23.08 74.48 1.07 0.27 0.28 0.83 100 WEMI 7 0.50 30.19 67.61 0.97 0.25 0.20 0.78 100 WHPE 2 0.28 90.86 5.64 1.60 0.40 0.26 1.24 100

SNCR (1) Class I Area No. of Days > 0.5 dv 98th Percentile %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF %_Total ARCH 9 0.55 35.09 58.78 2.65 0.67 0.78 2.03 100 BAND 8 0.50 28.62 67.27 1.80 0.46 0.47 1.39 100 BLCA 1 0.38 40.36 57.47 0.96 0.24 0.22 0.75 100 CANY 11 0.68 56.74 39.80 1.52 0.38 0.32 1.23 100 CARE 3 0.33 53.73 44.06 0.97 0.25 0.20 0.79 100 GRCA 0 0.18 94.07 0.99 2.19 0.55 0.46 1.74 100 GRSA 1 0.17 29.37 66.22 1.96 0.50 0.42 1.52 100 LAGA 1 0.27 44.37 53.03 1.16 0.29 0.22 0.93 100 MABE 0 0.14 28.24 68.66 1.36 0.34 0.34 1.06 100 MEVE 60 1.59 49.07 39.71 4.77 1.20 1.59 3.66 100 PECO 2 0.36 60.12 35.47 1.98 0.50 0.36 1.57 100 PEFO 0 0.16 90.50 5.58 1.76 0.44 0.31 1.41 100 SAPE 11 0.61 32.36 61.72 2.56 0.65 0.75 1.96 100 WEEL 0 0.28 28.69 68.28 1.32 0.33 0.35 1.03 100 WEMI 5 0.41 29.04 64.34 2.97 0.75 0.57 2.34 100 WHPE 1 0.24 29.04 66.47 2.00 0.50 0.43 1.57 100PNM SJGS BART Modeling - Unit 4 Nitrate Repartitioning - Monthly Varying NH3 Background 2001

Pre-Consent Decree (3) Class I Area No. of Days > 0.5 dv 98th Percentile %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF %_Total ARCH 18 1.05 38.73 59.14 0.54 0.33 0.40 0.86 100 BAND 9 0.54 77.25 16.22 1.66 1.02 1.24 2.61 100 BLCA 10 0.58 27.97 66.50 1.39 0.86 1.12 2.16 100 CANY 35 1.47 36.32 61.24 0.61 0.38 0.47 0.99 100 CARE 18 1.11 30.71 66.66 0.64 0.39 0.59 1.01 100 GRCA 7 0.48 31.01 66.45 0.63 0.39 0.51 1.00 100 GRSA 1 0.29 76.95 15.10 2.18 1.34 1.00 3.43 100 LAGA 4 0.40 40.66 56.73 0.68 0.42 0.44 1.09 100 MABE 1 0.24 69.36 25.32 1.36 0.84 0.94 2.18 100 MEVE 97 1.94 55.06 37.27 1.83 1.13 1.84 2.87 100 PECO 6 0.48 32.92 63.69 0.95 0.58 0.38 1.49 100 PEFO 5 0.44 29.28 67.84 0.68 0.42 0.71 1.07 100 SAPE 33 0.89 31.06 63.04 1.43 0.88 1.38 2.22 100 WEEL 6 0.38 38.50 56.07 1.42 0.88 0.88 2.25 100 WEMI 10 0.59 27.20 66.98 1.42 0.88 1.30 2.23 100 WHPE 5 0.37 30.24 67.03 0.72 0.44 0.43 1.14 100

Baseline - Consent Decree (2) Class I Area No. of Days > 0.5 dv 98th Percentile %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF %_Total ARCH 18 0.88 35.06 63.08 0.82 0.21 0.17 0.66 100 BAND 3 0.38 26.97 70.54 1.12 0.29 0.20 0.87 100 BLCA 4 0.42 25.63 71.10 1.45 0.37 0.33 1.12 100 CANY 29 1.14 32.53 65.94 0.68 0.17 0.15 0.54 100 CARE 13 0.86 26.89 71.54 0.68 0.18 0.18 0.54 100 GRCA 5 0.36 27.72 70.68 0.70 0.18 0.16 0.55 100 GRSA 0 0.21 36.09 57.39 2.96 0.76 0.50 2.30 100 LAGA 1 0.28 36.17 62.10 0.77 0.20 0.14 0.61 100 MABE 0 0.20 33.07 64.29 1.19 0.31 0.21 0.94 100 MEVE 64 1.55 71.87 17.66 4.45 1.15 1.45 3.43 100 PECO 2 0.34 87.02 9.05 1.73 0.45 0.41 1.35 100 PEFO 2 0.29 85.93 11.66 1.07 0.28 0.21 0.85 100 SAPE 18 0.69 27.73 68.93 1.46 0.38 0.39 1.12 100 WEEL 4 0.30 33.81 63.19 1.36 0.35 0.23 1.07 100 WEMI 6 0.43 21.27 75.64 1.32 0.34 0.40 1.03 100 WHPE 2 0.28 27.76 70.47 0.80 0.21 0.13 0.63 100

SNCR (1) Class I Area No. of Days > 0.5 dv 98th Percentile %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF %_Total ARCH 16 0.79 39.99 57.86 0.95 0.24 0.20 0.76 100 BAND 1 0.31 30.99 64.97 1.84 0.47 0.30 1.43 100 BLCA 2 0.35 31.42 64.57 1.78 0.46 0.41 1.37 100 CANY 27 1.01 49.40 48.07 1.08 0.28 0.35 0.83 100 CARE 12 0.71 33.04 65.03 0.84 0.22 0.22 0.66 100 GRCA 4 0.29 34.30 63.73 0.87 0.22 0.20 0.68 100 GRSA 0 0.18 80.37 13.47 2.83 0.73 0.39 2.21 100 LAGA 0 0.25 82.77 12.53 2.07 0.53 0.47 1.62 100 MABE 0 0.17 40.27 56.52 1.45 0.37 0.25 1.14 100 MEVE 57 1.49 75.14 6.79 7.62 1.96 2.63 5.86 100 PECO 2 0.29 50.01 46.73 1.47 0.38 0.26 1.15 100 PEFO 2 0.29 85.93 11.66 1.07 0.28 0.21 0.85 100 SAPE 18 0.69 27.73 68.93 1.46 0.38 0.39 1.12 100 WEEL 1 0.25 41.07 55.28 1.65 0.42 0.28 1.29 100 WEMI 2 0.36 31.71 63.93 1.90 0.49 0.49 1.47 100 WHPE 2 0.22 34.73 63.06 1.00 0.26 0.17 0.79 100PNM SJGS BART Modeling - Unit 4 Nitrate Repartitioning - Monthly Varying NH3 Background 2002

Pre-Consent Decree (3) Class I Area No. of Days > 0.5 dv 98th Percentile %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF %_Total ARCH 15 0.84 33.46 63.61 0.73 0.45 0.58 1.17 100 BAND 20 0.81 53.16 38.54 2.16 1.33 1.41 3.39 100 BLCA 10 0.54 22.21 73.48 1.04 0.64 1.01 1.62 100 CANY 22 1.06 24.09 71.18 1.10 0.68 1.23 1.72 100 CARE 5 0.38 35.19 62.28 0.64 0.39 0.47 1.04 100 GRCA 3 0.34 47.06 50.82 0.54 0.33 0.35 0.90 100 GRSA 2 0.34 83.04 12.72 1.10 0.68 0.71 1.74 100 LAGA 4 0.45 81.97 13.16 1.28 0.79 0.74 2.05 100 MABE 0 0.25 28.95 63.55 2.07 1.28 0.79 3.36 100 MEVE 96 2.18 51.65 41.36 1.63 1.00 1.80 2.56 100 PECO 8 0.52 44.34 53.57 0.54 0.33 0.36 0.86 100 PEFO 5 0.27 91.57 1.90 1.66 1.02 1.20 2.65 100 SAPE 43 1.04 34.95 58.17 1.67 1.03 1.57 2.61 100 WEEL 5 0.43 35.21 57.78 1.81 1.12 1.23 2.86 100 WEMI 25 0.81 32.08 65.59 0.56 0.35 0.53 0.90 100 WHPE 4 0.41 34.54 59.79 1.49 0.92 0.93 2.35 100

Baseline - Consent Decree (2) Class I Area No. of Days > 0.5 dv 98th Percentile %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF %_Total ARCH 12 0.65 29.14 67.09 1.64 0.42 0.45 1.27 100 BAND 10 0.56 52.56 41.80 2.54 0.65 0.47 1.98 100 BLCA 4 0.42 20.20 77.31 1.08 0.28 0.30 0.83 100 CANY 17 0.85 30.88 67.04 0.92 0.24 0.20 0.73 100 CARE 5 0.26 91.06 1.83 3.12 0.81 0.70 2.47 100 GRCA 3 0.24 42.57 56.03 0.62 0.16 0.12 0.51 100 GRSA 0 0.23 28.00 70.38 0.73 0.19 0.12 0.58 100 LAGA 1 0.32 22.47 73.91 1.64 0.42 0.29 1.27 100 MABE 0 0.19 28.63 66.47 2.26 0.58 0.24 1.82 100 MEVE 75 1.89 42.10 54.26 1.56 0.40 0.47 1.22 100 PECO 5 0.35 30.81 66.63 1.17 0.30 0.18 0.91 100 PEFO 3 0.18 28.47 69.84 0.75 0.19 0.13 0.61 100 SAPE 34 0.80 28.16 68.06 1.65 0.42 0.42 1.29 100 WEEL 4 0.33 24.93 71.68 1.47 0.38 0.41 1.13 100 WEMI 13 0.63 31.35 61.78 2.92 0.75 0.93 2.26 100 WHPE 0 0.30 44.20 54.55 0.55 0.14 0.11 0.44 100

SNCR (1) Class I Area No. of Days > 0.5 dv 98th Percentile %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF %_Total ARCH 9 0.54 35.26 60.17 1.98 0.51 0.54 1.54 100 BAND 6 0.49 37.43 59.81 1.22 0.31 0.27 0.96 100 BLCA 4 0.34 25.21 71.68 1.34 0.35 0.38 1.04 100 CANY 14 0.71 37.25 60.23 1.11 0.29 0.25 0.88 100 CARE 4 0.23 38.70 59.32 0.87 0.22 0.18 0.70 100 GRCA 1 0.20 50.42 47.92 0.73 0.19 0.14 0.60 100 GRSA 0 0.19 33.70 62.42 1.74 0.45 0.33 1.36 100 LAGA 0 0.27 39.05 59.06 0.84 0.22 0.18 0.67 100 MABE 0 0.16 40.78 54.76 2.01 0.52 0.36 1.58 100 MEVE 71 1.73 46.32 49.67 1.71 0.44 0.52 1.34 100 PECO 3 0.30 46.58 47.24 2.80 0.72 0.46 2.20 100 PEFO 0 0.17 93.49 1.65 2.15 0.56 0.44 1.71 100 SAPE 22 0.66 34.15 61.26 2.00 0.51 0.51 1.56 100 WEEL 1 0.27 30.78 65.04 1.81 0.47 0.50 1.40 100 WEMI 8 0.54 25.87 70.07 1.75 0.45 0.52 1.35 100 WHPE 0 0.26 36.50 61.80 0.75 0.19 0.15 0.60 100PNM SJGS BART Modeling - Unit 4 Nitrate Repartitioning - Monthly Varying NH3 Background 2003

Pre-Consent Decree (3) Class I Area No. of Days > 0.5 dv 98th Percentile %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF %_Total ARCH 14 0.74 30.46 60.93 2.04 1.26 2.14 3.18 100 BAND 15 0.71 23.48 68.94 1.88 1.16 1.60 2.93 100 BLCA 9 0.59 37.08 55.34 1.83 1.13 1.78 2.84 100 CANY 20 0.97 32.92 55.93 2.59 1.60 2.93 4.03 100 CARE 9 0.53 49.90 47.20 0.72 0.45 0.54 1.19 100 GRCA 3 0.27 92.31 1.07 1.68 1.03 1.22 2.69 100 GRSA 3 0.27 24.99 69.23 1.46 0.90 1.12 2.30 100 LAGA 5 0.43 22.20 71.74 1.71 1.06 0.56 2.72 100 MABE 0 0.24 24.98 71.07 0.97 0.60 0.87 1.52 100 MEVE 93 2.15 71.14 6.46 5.08 3.13 6.31 7.88 100 PECO 12 0.59 55.50 38.80 1.48 0.91 0.94 2.37 100 PEFO 1 0.25 88.57 6.28 1.34 0.83 0.81 2.17 100 SAPE 35 0.88 28.38 62.72 2.09 1.29 2.27 3.25 100 WEEL 5 0.39 23.21 73.59 0.82 0.50 0.58 1.29 100 WEMI 15 0.65 31.61 64.42 1.01 0.63 0.73 1.61 100 WHPE 4 0.38 24.18 69.77 1.52 0.94 1.18 2.41 100

Baseline - Consent Decree (2) Class I Area No. of Days > 0.5 dv 98th Percentile %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF %_Total ARCH 9 0.63 28.93 66.06 2.16 0.56 0.63 1.67 100 BAND 8 0.60 23.30 73.35 1.46 0.38 0.38 1.13 100 BLCA 7 0.44 33.38 64.83 0.79 0.20 0.18 0.62 100 CANY 13 0.78 32.54 60.94 2.78 0.72 0.88 2.14 100 CARE 4 0.35 91.08 1.19 3.35 0.86 0.90 2.61 100 GRCA 0 0.18 52.85 43.67 1.54 0.40 0.32 1.23 100 GRSA 1 0.21 23.53 72.93 1.57 0.41 0.34 1.23 100 LAGA 3 0.32 21.23 74.90 1.79 0.46 0.16 1.47 100 MABE 0 0.18 22.92 75.41 0.73 0.19 0.18 0.57 100 MEVE 63 1.73 44.56 45.24 4.32 1.11 1.44 3.33 100 PECO 5 0.41 52.81 43.33 1.73 0.45 0.31 1.38 100 PEFO 1 0.17 31.86 65.63 1.13 0.29 0.18 0.92 100 SAPE 17 0.69 26.79 68.32 2.10 0.54 0.62 1.62 100 WEEL 1 0.33 23.22 75.05 0.76 0.19 0.19 0.59 100 WEMI 6 0.49 30.25 67.54 0.97 0.25 0.20 0.78 100 WHPE 2 0.28 90.85 5.63 1.59 0.41 0.26 1.24 100

SNCR (1) Class I Area No. of Days > 0.5 dv 98th Percentile %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF %_Total ARCH 9 0.53 34.84 59.13 2.60 0.67 0.76 2.01 100 BAND 7 0.49 28.60 67.28 1.80 0.46 0.47 1.39 100 BLCA 1 0.37 40.59 57.23 0.96 0.25 0.22 0.76 100 CANY 12 0.67 54.33 42.11 1.55 0.40 0.36 1.24 100 CARE 3 0.32 53.74 44.05 0.97 0.25 0.20 0.79 100 GRCA 0 0.17 94.07 0.98 2.18 0.56 0.46 1.74 100 GRSA 1 0.16 29.36 66.21 1.96 0.51 0.42 1.53 100 LAGA 0 0.26 26.64 68.50 2.24 0.58 0.20 1.84 100 MABE 0 0.14 40.85 56.95 0.96 0.25 0.24 0.75 100 MEVE 58 1.58 49.15 39.60 4.76 1.23 1.59 3.67 100 PECO 2 0.36 60.28 35.31 1.97 0.51 0.36 1.57 100 PEFO 1 0.17 31.86 65.63 1.13 0.29 0.18 0.92 100 SAPE 17 0.69 26.79 68.32 2.10 0.54 0.62 1.62 100 WEEL 0 0.26 29.19 68.62 0.95 0.24 0.24 0.75 100 WEMI 5 0.40 28.99 64.37 2.96 0.76 0.57 2.34 100 WHPE 1 0.23 29.01 66.48 1.99 0.51 0.43 1.57 100PNM SJGS BART Modeling Nitrate Repartitioning - 1ppb NH3 Background 2001

Pre-Consent Decree (4) Class I Area No. of Days > 0.5 dv 98th Percentile %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF %_Total ARCH 63 3.88 29.98 65.42 1.19 0.73 0.68 1.99 100 BAND 83 1.76 25.84 70.52 0.96 0.59 0.60 1.50 100 BLCA 52 1.97 23.12 72.14 1.20 0.73 0.95 1.86 100 CANY 86 5.13 30.60 66.54 0.72 0.44 0.55 1.16 100 CARE 33 3.75 24.65 73.07 0.55 0.34 0.51 0.87 100 GRCA 14 1.76 26.45 71.33 0.56 0.34 0.41 0.91 100 GRSA 28 1.09 29.07 62.55 2.23 1.37 1.29 3.49 100 LAGA 48 1.46 24.79 71.54 0.90 0.55 0.84 1.40 100 MABE 19 0.89 19.82 73.71 1.62 0.99 1.35 2.52 100 MEVE 194 6.04 61.06 23.56 3.54 2.17 4.16 5.51 100 PECO 62 1.59 28.83 67.96 0.89 0.55 0.37 1.40 100 PEFO 21 1.34 37.69 58.19 1.04 0.64 0.76 1.68 100 SAPE 123 3.47 21.59 74.14 1.04 0.64 0.99 1.62 100 WEEL 51 1.45 23.15 73.90 0.75 0.46 0.53 1.21 100 WEMI 88 2.01 28.91 63.92 1.74 1.06 1.67 2.70 100 WHPE 46 1.32 84.34 10.11 1.38 0.85 1.15 2.18 100

Consent Decree (3) Class I Area No. of Days > 0.5 dv 98th Percentile %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF %_Total ARCH 54 3.63 26.14 71.28 1.14 0.29 0.19 0.95 100 BAND 68 1.32 29.07 69.42 0.68 0.17 0.12 0.54 100 BLCA 37 1.49 27.25 70.10 1.19 0.30 0.23 0.93 100 CANY 72 4.80 28.49 70.10 0.62 0.16 0.13 0.49 100 CARE 31 2.89 23.77 74.85 0.60 0.15 0.15 0.47 100 GRCA 12 1.46 24.80 73.83 0.61 0.15 0.12 0.49 100 GRSA 21 0.83 29.17 65.57 2.39 0.61 0.40 1.85 100 LAGA 26 1.08 24.16 74.12 0.77 0.20 0.14 0.61 100 MABE 11 0.70 20.03 76.10 1.71 0.44 0.40 1.32 100 MEVE 173 5.27 25.48 71.07 1.47 0.37 0.48 1.13 100 PECO 49 1.20 35.48 62.23 1.02 0.26 0.20 0.80 100 PEFO 16 0.96 36.46 60.95 1.14 0.29 0.23 0.91 100 SAPE 107 2.68 20.98 76.53 1.09 0.28 0.28 0.84 100 WEEL 29 1.12 22.44 75.75 0.81 0.21 0.16 0.64 100 WEMI 65 1.56 21.65 75.52 1.21 0.31 0.39 0.93 100 WHPE 30 0.96 37.15 59.53 1.49 0.38 0.29 1.16 100

SNCR (1) Class I Area No. of Days > 0.5 dv 98th Percentile %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF %_Total ARCH 50 3.06 25.78 71.16 1.35 0.34 0.31 1.06 100 BAND 49 1.09 27.96 68.10 1.78 0.45 0.34 1.38 100 BLCA 30 1.22 33.89 62.82 1.48 0.38 0.28 1.16 100 CANY 69 4.04 35.25 63.02 0.77 0.20 0.16 0.61 100 CARE 29 2.36 29.97 68.29 0.76 0.19 0.19 0.60 100 GRCA 11 1.18 31.10 67.18 0.76 0.19 0.16 0.61 100 GRSA 14 0.69 35.23 58.42 2.89 0.74 0.48 2.24 100 LAGA 20 0.87 30.43 67.40 0.97 0.25 0.18 0.77 100 MABE 8 0.56 25.24 69.89 2.15 0.55 0.51 1.66 100 MEVE 167 4.63 68.12 15.50 6.91 1.77 2.38 5.31 100 PECO 42 1.01 84.15 11.58 1.91 0.49 0.38 1.49 100 PEFO 13 0.89 31.69 66.21 0.91 0.23 0.26 0.71 100 SAPE 96 2.19 26.34 70.53 1.37 0.35 0.36 1.05 100 WEEL 18 0.90 28.37 69.33 1.02 0.26 0.21 0.81 100 WEMI 55 1.29 27.20 69.11 1.57 0.40 0.51 1.21 100 WHPE 26 0.89 87.73 8.49 1.66 0.42 0.40 1.30 100PNM SJGS BART Modeling Nitrate Repartitioning - 1 ppb NH3 Background 2002

Pre-Consent Decree (4) Class I Area No. of Days > 0.5 dv 98th Percentile %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF %_Total ARCH 49 2.93 21.16 75.39 0.85 0.52 0.74 1.34 100 BAND 102 2.55 25.19 70.67 1.08 0.66 0.67 1.71 100 BLCA 64 1.95 17.79 78.56 0.88 0.54 0.87 1.37 100 CANY 70 3.81 24.38 71.27 1.08 0.66 0.90 1.70 100 CARE 25 1.20 88.07 1.40 2.63 1.61 2.09 4.20 100 GRCA 16 1.28 35.67 62.58 0.44 0.27 0.29 0.74 100 GRSA 37 1.10 26.69 71.00 0.61 0.37 0.35 0.98 100 LAGA 72 1.45 22.21 74.60 0.81 0.50 0.58 1.30 100 MABE 25 0.85 27.13 69.91 0.76 0.47 0.52 1.22 100 MEVE 195 5.98 40.37 54.69 1.16 0.71 1.23 1.84 100 PECO 76 1.93 32.04 61.71 1.66 1.02 0.97 2.62 100 PEFO 19 0.86 27.40 70.14 0.63 0.39 0.40 1.04 100 SAPE 134 3.47 46.92 47.24 1.46 0.90 1.21 2.28 100 WEEL 52 1.47 23.60 71.12 1.28 0.78 1.24 1.98 100 WEMI 132 2.57 23.39 72.00 1.07 0.66 1.21 1.67 100 WHPE 47 1.44 42.09 56.16 0.45 0.27 0.31 0.73 100

Consent Decree (3) Class I Area No. of Days > 0.5 dv 98th Percentile %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF %_Total ARCH 35 2.82 27.29 71.11 0.70 0.18 0.17 0.56 100 BAND 82 2.07 26.08 69.71 1.85 0.47 0.45 1.43 100 BLCA 42 1.56 20.99 77.05 0.87 0.22 0.20 0.67 100 CANY 61 3.29 23.00 74.53 1.09 0.28 0.25 0.85 100 CARE 19 0.93 26.49 72.34 0.51 0.13 0.12 0.41 100 GRCA 12 0.98 34.05 64.84 0.49 0.12 0.09 0.40 100 GRSA 20 0.80 25.18 73.35 0.66 0.17 0.11 0.53 100 LAGA 49 1.13 21.66 76.37 0.88 0.22 0.18 0.69 100 MABE 16 0.66 23.88 74.36 0.77 0.20 0.18 0.61 100 MEVE 177 5.67 30.72 67.01 0.97 0.25 0.28 0.76 100 PECO 54 1.47 32.10 63.84 1.84 0.47 0.31 1.44 100 PEFO 13 0.66 25.94 72.52 0.69 0.18 0.12 0.56 100 SAPE 117 2.91 27.67 68.39 1.72 0.44 0.45 1.33 100 WEEL 35 1.12 22.69 74.27 1.32 0.34 0.36 1.02 100 WEMI 99 2.00 20.06 76.79 1.36 0.35 0.40 1.05 100 WHPE 28 1.06 27.12 71.66 0.55 0.14 0.11 0.43 100

SNCR (1) Class I Area No. of Days > 0.5 dv 98th Percentile %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF %_Total ARCH 31 2.31 26.14 71.31 1.11 0.28 0.27 0.87 100 BAND 65 1.76 31.20 63.77 2.22 0.57 0.54 1.71 100 BLCA 34 1.26 26.50 71.01 1.09 0.28 0.26 0.85 100 CANY 60 2.72 31.70 66.17 0.94 0.24 0.21 0.74 100 CARE 19 0.80 35.32 62.88 0.79 0.20 0.17 0.64 100 GRCA 10 0.81 41.58 57.06 0.60 0.15 0.11 0.49 100 GRSA 14 0.65 31.48 66.69 0.82 0.21 0.14 0.66 100 LAGA 33 0.90 27.68 69.80 1.12 0.29 0.23 0.89 100 MABE 11 0.54 87.55 9.43 1.36 0.35 0.24 1.07 100 MEVE 169 5.30 35.11 61.32 1.54 0.39 0.44 1.20 100 PECO 45 1.23 38.90 56.18 2.23 0.57 0.38 1.74 100 PEFO 9 0.54 93.61 1.55 2.15 0.55 0.44 1.70 100 SAPE 109 2.61 46.66 49.62 1.65 0.42 0.38 1.27 100 WEEL 26 0.91 35.16 60.21 2.08 0.53 0.39 1.63 100 WEMI 79 1.77 41.97 56.32 0.76 0.19 0.15 0.61 100 WHPE 20 0.86 33.80 64.67 0.68 0.17 0.13 0.54 100PNM SJGS BART Modeling Nitrate Repartitioning - 1ppb NH3 Background 2003

Pre-Consent Decree (4) Class I Area No. of Days > 0.5 dv 98th Percentile %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF %_Total ARCH 44 3.04 22.97 72.89 0.99 0.60 0.99 1.56 100 BAND 92 2.83 25.53 70.07 1.12 0.68 0.86 1.74 100 BLCA 43 2.15 32.21 62.82 1.19 0.73 1.17 1.87 100 CANY 61 3.75 32.48 65.63 0.47 0.29 0.36 0.77 100 CARE 27 1.61 87.50 0.87 2.81 1.72 2.68 4.41 100 GRCA 12 0.92 47.94 47.28 1.21 0.74 0.86 1.96 100 GRSA 32 0.96 42.44 53.87 0.95 0.58 0.67 1.50 100 LAGA 49 1.52 27.92 67.48 1.17 0.72 0.90 1.82 100 MABE 17 0.91 20.17 76.39 0.85 0.52 0.74 1.33 100 MEVE 182 5.85 28.35 66.46 1.19 0.73 1.43 1.85 100 PECO 81 2.23 40.55 56.89 0.68 0.41 0.39 1.08 100 PEFO 18 0.78 18.88 78.20 0.76 0.47 0.47 1.21 100 SAPE 140 3.35 26.53 67.27 1.49 0.91 1.49 2.32 100 WEEL 37 1.42 25.63 69.73 1.13 0.69 1.07 1.75 100 WEMI 104 2.25 28.72 68.06 0.82 0.50 0.59 1.32 100 WHPE 58 1.35 29.44 68.47 0.53 0.32 0.39 0.84 100

Consent Decree (3) Class I Area No. of Days > 0.5 dv 98th Percentile %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF %_Total ARCH 34 2.71 22.19 75.32 1.07 0.27 0.30 0.84 100 BAND 69 2.14 25.04 72.32 1.18 0.30 0.25 0.91 100 BLCA 31 1.76 26.99 71.60 0.62 0.16 0.14 0.49 100 CANY 51 3.05 30.81 68.00 0.52 0.13 0.11 0.42 100 CARE 25 1.24 26.77 72.03 0.53 0.14 0.08 0.45 100 GRCA 10 0.68 45.83 51.15 1.34 0.34 0.27 1.07 100 GRSA 19 0.71 22.61 75.07 1.03 0.26 0.21 0.82 100 LAGA 36 1.15 35.52 62.27 0.98 0.25 0.22 0.76 100 MABE 14 0.65 19.66 78.34 0.88 0.22 0.21 0.69 100 MEVE 169 5.10 57.33 32.99 4.09 1.05 1.40 3.15 100 PECO 60 1.67 38.62 59.73 0.75 0.19 0.13 0.59 100 PEFO 11 0.60 65.22 31.37 1.53 0.39 0.27 1.23 100 SAPE 117 2.78 23.83 73.49 1.15 0.29 0.34 0.89 100 WEEL 25 1.09 28.07 69.57 1.03 0.26 0.25 0.81 100 WEMI 80 1.68 27.81 70.15 0.90 0.23 0.19 0.72 100 WHPE 34 1.15 28.67 70.05 0.57 0.14 0.12 0.45 100

SNCR (1) Class I Area No. of Days > 0.5 dv 98th Percentile %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF %_Total ARCH 29 2.22 27.76 69.12 1.34 0.34 0.37 1.05 100 BAND 65 1.76 30.99 65.75 1.45 0.37 0.32 1.13 100 BLCA 25 1.44 33.74 64.51 0.78 0.20 0.17 0.61 100 CANY 50 2.53 38.22 60.32 0.65 0.16 0.14 0.52 100 CARE 24 1.12 91.50 0.76 3.36 0.86 0.91 2.61 100 GRCA 9 0.59 53.12 43.38 1.55 0.40 0.32 1.24 100 GRSA 13 0.59 26.07 70.04 1.73 0.44 0.37 1.35 100 LAGA 24 0.97 42.82 54.51 1.18 0.30 0.27 0.92 100 MABE 8 0.52 25.08 72.38 1.12 0.29 0.26 0.88 100 MEVE 164 4.74 32.32 63.19 1.92 0.49 0.58 1.50 100 PECO 50 1.38 28.83 68.34 1.24 0.32 0.31 0.96 100 PEFO 9 0.53 23.41 74.25 1.05 0.27 0.19 0.83 100 SAPE 104 2.34 28.97 67.78 1.40 0.36 0.42 1.08 100 WEEL 22 0.90 34.48 62.61 1.27 0.32 0.31 1.00 100 WEMI 67 1.45 29.36 67.98 1.14 0.29 0.33 0.89 100 WHPE 26 0.93 35.59 62.82 0.70 0.18 0.15 0.56 100PNM SJGS BART Modeling - Unit 1 Nitrate Repartitioning - 1ppb NH3 Background 2001

Pre-Consent Decree (3) Class I Area No. of Days > 0.5 dv 98th Percentile %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF %_Total ARCH 19 1.10 19.01 77.17 0.95 0.58 0.78 1.51 100 BAND 4 0.36 22.47 72.83 1.27 0.77 0.68 1.98 100 BLCA 4 0.39 32.95 64.66 0.58 0.35 0.55 0.91 100 CANY 33 1.50 27.68 70.07 0.57 0.34 0.43 0.91 100 CARE 16 0.85 23.21 74.50 0.56 0.34 0.51 0.89 100 GRCA 7 0.39 24.41 73.35 0.57 0.34 0.41 0.92 100 GRSA 0 0.22 27.18 69.52 0.88 0.53 0.52 1.38 100 LAGA 2 0.29 23.67 73.56 0.73 0.44 0.45 1.16 100 MABE 1 0.19 18.91 74.76 1.59 0.96 1.32 2.47 100 MEVE 70 2.26 29.86 61.29 2.04 1.23 2.40 3.18 100 PECO 2 0.33 34.59 61.76 0.94 0.57 0.65 1.49 100 PEFO 2 0.26 35.35 60.49 1.06 0.64 0.75 1.71 100 SAPE 20 0.80 19.87 76.10 0.99 0.60 0.90 1.54 100 WEEL 4 0.33 21.87 75.20 0.75 0.45 0.52 1.20 100 WEMI 4 0.45 19.30 75.87 1.12 0.68 1.30 1.74 100 WHPE 2 0.27 35.33 59.48 1.35 0.82 0.90 2.13 100

Baseline - Consent Decree (2) Class I Area No. of Days > 0.5 dv 98th Percentile %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF %_Total ARCH 17 0.86 21.45 76.02 1.09 0.28 0.30 0.86 100 BAND 1 0.29 24.57 72.22 1.47 0.38 0.23 1.14 100 BLCA 3 0.31 27.85 69.57 1.16 0.30 0.21 0.91 100 CANY 27 1.25 21.94 76.75 0.58 0.15 0.11 0.47 100 CARE 14 0.66 21.10 77.27 0.73 0.19 0.14 0.58 100 GRCA 5 0.34 24.25 74.40 0.60 0.15 0.12 0.48 100 GRSA 0 0.16 21.08 77.03 0.84 0.21 0.18 0.66 100 LAGA 0 0.22 24.76 73.54 0.76 0.20 0.14 0.60 100 MABE 0 0.15 19.83 76.38 1.68 0.43 0.39 1.30 100 MEVE 53 1.96 21.72 74.78 1.49 0.38 0.46 1.16 100 PECO 2 0.25 35.11 62.63 1.01 0.26 0.20 0.79 100 PEFO 2 0.19 24.50 73.18 1.03 0.26 0.22 0.81 100 SAPE 10 0.57 20.85 76.74 1.06 0.27 0.26 0.82 100 WEEL 1 0.25 22.38 75.51 0.92 0.23 0.23 0.72 100 WEMI 2 0.34 27.74 65.03 3.15 0.81 0.83 2.44 100 WHPE 2 0.23 29.48 68.87 0.76 0.19 0.10 0.61 100

SNCR (1) Class I Area No. of Days > 0.5 dv 98th Percentile %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF %_Total ARCH 13 0.69 27.14 69.65 1.39 0.35 0.38 1.08 100 BAND 1 0.23 37.66 57.02 2.35 0.60 0.51 1.85 100 BLCA 1 0.25 34.68 62.12 1.44 0.37 0.26 1.14 100 CANY 24 0.99 27.96 70.35 0.74 0.19 0.15 0.60 100 CARE 10 0.52 26.56 71.27 0.97 0.25 0.19 0.76 100 GRCA 4 0.27 30.48 67.82 0.75 0.19 0.15 0.61 100 GRSA 0 0.13 91.64 4.93 1.51 0.39 0.35 1.18 100 LAGA 0 0.18 31.15 66.71 0.96 0.25 0.17 0.76 100 MABE 0 0.12 25.03 70.18 2.12 0.54 0.49 1.64 100 MEVE 43 1.61 26.96 68.69 1.86 0.48 0.58 1.44 100 PECO 1 0.22 27.00 68.63 1.92 0.49 0.47 1.49 100 PEFO 2 0.17 31.80 66.11 0.91 0.23 0.25 0.71 100 SAPE 7 0.45 26.39 70.55 1.34 0.34 0.33 1.04 100 WEEL 0 0.20 28.26 69.08 1.16 0.30 0.29 0.91 100 WEMI 2 0.27 28.26 68.08 1.55 0.40 0.51 1.20 100 WHPE 1 0.19 36.47 61.48 0.94 0.24 0.12 0.76 100PNM SJGS BART Modeling - Unit 1 Nitrate Repartitioning - 1 ppb NH3 Background 2002

Pre-Consent Decree (3) Class I Area No. of Days > 0.5 dv 98th Percentile %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF %_Total ARCH 13 0.85 26.32 71.06 0.65 0.39 0.54 1.04 100 BAND 14 0.64 32.38 65.42 0.56 0.34 0.40 0.90 100 BLCA 4 0.43 20.28 76.52 0.80 0.48 0.66 1.26 100 CANY 20 1.02 21.11 75.03 0.97 0.59 0.77 1.53 100 CARE 5 0.26 26.17 71.88 0.48 0.29 0.40 0.77 100 GRCA 3 0.26 33.88 64.33 0.46 0.28 0.30 0.76 100 GRSA 0 0.21 35.27 62.28 0.63 0.38 0.42 1.01 100 LAGA 2 0.32 22.44 72.93 1.11 0.67 1.12 1.73 100 MABE 0 0.19 27.50 67.62 1.29 0.78 0.78 2.04 100 MEVE 86 2.56 23.45 70.72 1.39 0.84 1.42 2.17 100 PECO 4 0.42 30.30 63.38 1.68 1.02 0.97 2.65 100 PEFO 2 0.18 25.54 71.97 0.64 0.39 0.40 1.06 100 SAPE 38 1.00 33.45 62.06 1.13 0.69 0.92 1.76 100 WEEL 3 0.32 26.40 67.67 1.54 0.93 1.04 2.43 100 WEMI 13 0.59 18.86 75.96 1.23 0.75 1.28 1.92 100 WHPE 1 0.28 27.03 70.97 0.51 0.31 0.35 0.83 100

Baseline - Consent Decree (2) Class I Area No. of Days > 0.5 dv 98th Percentile %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF %_Total ARCH 11 0.67 19.33 78.14 1.10 0.28 0.28 0.86 100 BAND 6 0.49 23.58 72.71 1.64 0.42 0.38 1.27 100 BLCA 4 0.33 22.97 75.69 0.61 0.16 0.10 0.48 100 CANY 16 0.80 21.96 75.77 1.00 0.26 0.22 0.79 100 CARE 3 0.20 88.04 4.45 3.32 0.85 0.73 2.61 100 GRCA 1 0.21 34.58 64.31 0.49 0.12 0.09 0.40 100 GRSA 0 0.15 24.98 73.55 0.66 0.17 0.11 0.53 100 LAGA 0 0.22 24.86 72.46 1.16 0.30 0.32 0.90 100 MABE 0 0.13 25.66 70.00 2.00 0.51 0.21 1.62 100 MEVE 73 2.23 23.15 73.73 1.33 0.34 0.42 1.03 100 PECO 3 0.32 30.12 65.86 1.82 0.47 0.30 1.43 100 PEFO 1 0.14 25.87 72.60 0.68 0.17 0.12 0.56 100 SAPE 23 0.75 35.06 62.13 1.24 0.32 0.28 0.96 100 WEEL 1 0.22 21.76 75.39 1.24 0.32 0.33 0.96 100 WEMI 9 0.52 20.83 77.20 0.85 0.22 0.23 0.67 100 WHPE 0 0.19 28.33 70.45 0.54 0.14 0.11 0.44 100

SNCR (1) Class I Area No. of Days > 0.5 dv 98th Percentile %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF %_Total ARCH 9 0.53 24.56 72.23 1.40 0.36 0.36 1.09 100 BAND 4 0.39 29.32 66.06 2.04 0.52 0.48 1.58 100 BLCA 2 0.26 26.18 71.36 1.08 0.28 0.25 0.85 100 CANY 15 0.63 27.88 69.25 1.27 0.32 0.28 1.00 100 CARE 1 0.16 33.21 65.31 0.64 0.16 0.15 0.52 100 GRCA 0 0.17 42.18 56.47 0.59 0.15 0.11 0.49 100 GRSA 0 0.13 34.43 61.81 1.69 0.43 0.31 1.33 100 LAGA 0 0.18 84.40 11.79 1.72 0.44 0.29 1.36 100 MABE 0 0.11 87.53 9.48 1.35 0.35 0.24 1.07 100 MEVE 52 1.83 28.91 67.19 1.66 0.43 0.53 1.29 100 PECO 3 0.26 39.06 55.97 2.25 0.57 0.38 1.76 100 PEFO 0 0.11 32.30 65.77 0.85 0.22 0.15 0.70 100 SAPE 13 0.63 42.17 54.46 1.49 0.38 0.34 1.16 100 WEEL 0 0.18 27.36 69.07 1.56 0.40 0.42 1.20 100 WEMI 5 0.41 26.41 71.10 1.08 0.28 0.30 0.84 100 WHPE 0 0.15 35.16 63.32 0.67 0.17 0.13 0.54 100PNM SJGS BART Modeling - Unit 1 Nitrate Repartitioning - 1ppb NH3 Background 2003

Pre-Consent Decree (3) Class I Area No. of Days > 0.5 dv 98th Percentile %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF %_Total ARCH 11 0.82 20.87 75.05 0.98 0.59 0.97 1.55 100 BAND 12 0.63 19.08 76.20 1.16 0.70 1.06 1.80 100 BLCA 6 0.48 27.14 70.61 0.57 0.34 0.43 0.91 100 CANY 16 0.90 30.20 67.87 0.48 0.29 0.37 0.78 100 CARE 5 0.36 25.80 72.34 0.49 0.29 0.25 0.83 100 GRCA 2 0.19 43.78 51.48 1.21 0.73 0.85 1.96 100 GRSA 1 0.20 26.85 70.79 0.59 0.35 0.49 0.93 100 LAGA 2 0.33 35.29 61.08 0.92 0.55 0.72 1.44 100 MABE 0 0.20 26.79 70.89 0.58 0.35 0.45 0.94 100 MEVE 72 2.20 35.97 53.41 2.44 1.48 2.92 3.79 100 PECO 7 0.46 38.09 59.27 0.70 0.42 0.41 1.12 100 PEFO 1 0.16 63.46 31.14 1.41 0.85 0.86 2.29 100 SAPE 23 0.86 21.57 74.23 0.99 0.60 1.05 1.55 100 WEEL 0 0.30 26.56 69.64 0.94 0.57 0.81 1.49 100 WEMI 9 0.52 39.22 42.79 4.30 2.60 4.39 6.69 100 WHPE 2 0.31 29.02 68.90 0.53 0.32 0.38 0.85 100

Baseline - Consent Decree (2) Class I Area No. of Days > 0.5 dv 98th Percentile %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF %_Total ARCH 9 0.71 21.29 76.25 1.06 0.27 0.29 0.84 100 BAND 6 0.44 24.60 72.87 1.13 0.29 0.24 0.88 100 BLCA 2 0.36 29.60 69.04 0.59 0.15 0.14 0.47 100 CANY 14 0.71 30.76 68.06 0.52 0.13 0.11 0.42 100 CARE 3 0.28 25.55 73.27 0.52 0.13 0.08 0.44 100 GRCA 0 0.16 69.22 26.86 1.73 0.44 0.37 1.38 100 GRSA 1 0.16 23.97 73.79 1.00 0.25 0.20 0.79 100 LAGA 1 0.24 33.99 64.16 0.83 0.21 0.14 0.67 100 MABE 0 0.12 33.93 64.37 0.75 0.19 0.17 0.59 100 MEVE 62 1.77 38.13 53.99 3.35 0.86 1.09 2.59 100 PECO 4 0.34 23.05 74.83 0.97 0.25 0.15 0.76 100 PEFO 0 0.12 65.07 31.52 1.52 0.39 0.27 1.23 100 SAPE 13 0.65 25.06 72.61 1.00 0.26 0.30 0.78 100 WEEL 0 0.24 17.71 80.05 0.98 0.25 0.25 0.76 100 WEMI 3 0.39 23.31 71.01 2.46 0.63 0.68 1.92 100 WHPE 0 0.23 26.01 72.20 0.80 0.20 0.17 0.62 100

SNCR (1) Class I Area No. of Days > 0.5 dv 98th Percentile %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF %_Total ARCH 9 0.57 26.91 69.99 1.34 0.34 0.36 1.06 100 BAND 4 0.35 30.79 66.05 1.41 0.36 0.30 1.10 100 BLCA 0 0.29 36.52 61.81 0.73 0.19 0.17 0.59 100 CANY 12 0.58 48.38 49.91 0.75 0.19 0.16 0.61 100 CARE 2 0.23 91.43 0.86 3.34 0.86 0.90 2.61 100 GRCA 0 0.13 39.47 59.01 0.67 0.17 0.12 0.55 100 GRSA 1 0.13 30.07 67.12 1.25 0.32 0.25 0.99 100 LAGA 0 0.20 41.42 56.32 1.01 0.26 0.17 0.82 100 MABE 0 0.10 41.49 56.42 0.91 0.23 0.21 0.73 100 MEVE 55 1.54 44.21 46.66 3.88 0.99 1.26 3.00 100 PECO 1 0.28 45.46 52.55 0.89 0.23 0.15 0.71 100 PEFO 0 0.11 71.41 24.86 1.67 0.43 0.29 1.35 100 SAPE 11 0.53 31.25 65.85 1.25 0.32 0.37 0.97 100 WEEL 0 0.19 27.47 68.62 1.71 0.44 0.43 1.34 100 WEMI 3 0.32 28.88 64.08 3.05 0.78 0.84 2.38 100 WHPE 0 0.18 32.46 65.30 0.99 0.25 0.21 0.78 100PNM SJGS BART Modeling - Unit 2 Nitrate Repartitioning - 1ppb NH3 Background 2001

Pre-Consent Decree (3) Class I Area No. of Days > 0.5 dv 98th Percentile %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF %_Total ARCH 19 1.13 18.20 78.08 0.93 0.57 0.76 1.47 100 BAND 4 0.38 28.28 69.40 0.61 0.37 0.37 0.98 100 BLCA 4 0.41 25.05 70.89 1.06 0.64 0.70 1.66 100 CANY 33 1.53 19.28 77.14 0.89 0.54 0.74 1.41 100 CARE 16 0.88 22.11 75.66 0.54 0.33 0.49 0.86 100 GRCA 7 0.39 23.36 74.45 0.55 0.34 0.40 0.90 100 GRSA 0 0.24 25.67 66.55 2.08 1.26 1.19 3.25 100 LAGA 2 0.32 21.64 74.70 0.89 0.54 0.83 1.39 100 MABE 1 0.19 18.16 75.68 1.54 0.94 1.28 2.40 100 MEVE 69 2.32 30.15 60.76 2.09 1.27 2.47 3.25 100 PECO 2 0.34 25.68 71.14 0.88 0.53 0.39 1.38 100 PEFO 2 0.27 33.78 62.13 1.04 0.63 0.75 1.68 100 SAPE 20 0.83 18.87 77.21 0.96 0.58 0.88 1.49 100 WEEL 4 0.33 20.70 76.43 0.73 0.45 0.51 1.18 100 WEMI 5 0.46 25.80 67.31 1.67 1.02 1.61 2.59 100 WHPE 2 0.27 33.82 61.07 1.33 0.81 0.88 2.09 100

Baseline - Consent Decree (2) Class I Area No. of Days > 0.5 dv 98th Percentile %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF %_Total ARCH 17 0.85 21.45 76.01 1.10 0.28 0.30 0.85 100 BAND 1 0.28 24.57 72.22 1.47 0.38 0.23 1.13 100 BLCA 3 0.31 27.86 69.56 1.17 0.30 0.21 0.91 100 CANY 27 1.24 21.94 76.75 0.58 0.15 0.11 0.47 100 CARE 14 0.66 21.11 77.26 0.73 0.19 0.14 0.57 100 GRCA 5 0.34 24.25 74.40 0.60 0.15 0.12 0.48 100 GRSA 0 0.16 21.09 77.02 0.84 0.22 0.18 0.66 100 LAGA 0 0.22 24.76 73.54 0.77 0.20 0.14 0.60 100 MABE 0 0.15 19.83 76.38 1.69 0.43 0.39 1.29 100 MEVE 53 1.95 21.71 74.78 1.50 0.38 0.46 1.15 100 PECO 2 0.25 35.11 62.63 1.01 0.26 0.20 0.79 100 PEFO 2 0.19 24.50 73.18 1.03 0.26 0.22 0.80 100 SAPE 10 0.57 20.85 76.73 1.07 0.27 0.26 0.82 100 WEEL 1 0.25 22.39 75.51 0.92 0.24 0.23 0.72 100 WEMI 2 0.34 27.74 65.02 3.17 0.81 0.83 2.43 100 WHPE 2 0.23 29.48 68.86 0.76 0.19 0.10 0.61 100

SNCR (1) Class I Area No. of Days > 0.5 dv 98th Percentile %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF %_Total ARCH 13 0.68 27.14 69.65 1.39 0.36 0.38 1.08 100 BAND 1 0.23 37.66 57.02 2.36 0.60 0.51 1.84 100 BLCA 1 0.25 34.68 62.11 1.45 0.37 0.26 1.13 100 CANY 24 0.99 27.96 70.35 0.75 0.19 0.15 0.60 100 CARE 10 0.52 26.56 71.26 0.98 0.25 0.19 0.76 100 GRCA 4 0.27 30.48 67.82 0.75 0.19 0.15 0.60 100 GRSA 0 0.13 91.63 4.93 1.52 0.39 0.35 1.18 100 LAGA 0 0.18 31.16 66.70 0.96 0.25 0.17 0.76 100 MABE 0 0.12 25.04 70.17 2.13 0.54 0.49 1.63 100 MEVE 43 1.60 26.96 68.69 1.87 0.48 0.58 1.43 100 PECO 1 0.22 27.00 68.63 1.93 0.49 0.47 1.48 100 PEFO 2 0.17 31.80 66.10 0.91 0.23 0.25 0.71 100 SAPE 7 0.45 26.39 70.54 1.35 0.35 0.34 1.03 100 WEEL 0 0.20 28.26 69.08 1.16 0.30 0.29 0.90 100 WEMI 2 0.27 28.26 68.07 1.56 0.40 0.51 1.20 100 WHPE 1 0.18 36.47 61.47 0.94 0.24 0.12 0.75 100PNM SJGS BART Modeling - Unit 2 Nitrate Repartitioning - 1 ppb NH3 Background 2002

Pre-Consent Decree (3) Class I Area No. of Days > 0.5 dv 98th Percentile %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF %_Total ARCH 13 0.85 19.58 75.93 1.09 0.66 1.04 1.70 100 BAND 14 0.65 30.87 66.96 0.55 0.34 0.39 0.88 100 BLCA 5 0.44 19.30 77.58 0.78 0.47 0.65 1.23 100 CANY 19 1.03 20.17 76.04 0.95 0.58 0.77 1.49 100 CARE 5 0.26 24.89 73.22 0.47 0.28 0.39 0.75 100 GRCA 3 0.26 32.09 66.15 0.45 0.27 0.29 0.75 100 GRSA 0 0.21 25.34 69.74 1.28 0.78 0.83 2.03 100 LAGA 1 0.33 20.10 76.77 0.80 0.49 0.57 1.27 100 MABE 0 0.18 23.56 69.84 1.84 1.12 0.67 2.98 100 MEVE 86 2.59 22.64 71.71 1.34 0.82 1.38 2.10 100 PECO 4 0.42 28.94 64.93 1.63 0.99 0.95 2.57 100 PEFO 2 0.18 24.28 73.28 0.63 0.38 0.39 1.03 100 SAPE 38 1.02 31.96 63.64 1.10 0.67 0.90 1.72 100 WEEL 4 0.33 25.41 68.75 1.51 0.92 1.03 2.38 100 WEMI 16 0.59 39.10 52.36 2.01 1.23 2.17 3.13 100 WHPE 0 0.29 25.62 72.45 0.49 0.30 0.34 0.80 100

Baseline - Consent Decree (2) Class I Area No. of Days > 0.5 dv 98th Percentile %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF %_Total ARCH 11 0.67 19.34 78.13 1.11 0.28 0.28 0.86 100 BAND 6 0.48 23.57 72.71 1.65 0.42 0.38 1.27 100 BLCA 4 0.33 22.97 75.68 0.61 0.16 0.10 0.48 100 CANY 16 0.79 21.97 75.77 1.01 0.26 0.22 0.78 100 CARE 3 0.20 88.04 4.45 3.33 0.85 0.73 2.60 100 GRCA 1 0.21 34.59 64.31 0.49 0.13 0.09 0.40 100 GRSA 0 0.15 24.98 73.55 0.66 0.17 0.11 0.53 100 LAGA 0 0.22 24.86 72.46 1.17 0.30 0.32 0.90 100 MABE 0 0.13 25.66 70.00 2.01 0.52 0.21 1.61 100 MEVE 73 2.22 23.14 73.73 1.34 0.34 0.42 1.03 100 PECO 3 0.31 30.12 65.86 1.83 0.47 0.30 1.42 100 PEFO 1 0.14 25.87 72.60 0.69 0.18 0.12 0.56 100 SAPE 22 0.75 35.06 62.13 1.25 0.32 0.28 0.96 100 WEEL 1 0.22 21.76 75.39 1.24 0.32 0.33 0.95 100 WEMI 8 0.51 20.83 77.20 0.85 0.22 0.23 0.66 100 WHPE 0 0.19 28.33 70.45 0.55 0.14 0.11 0.43 100

SNCR (1) Class I Area No. of Days > 0.5 dv 98th Percentile %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF %_Total ARCH 9 0.53 24.56 72.23 1.41 0.36 0.36 1.09 100 BAND 4 0.39 29.32 66.05 2.05 0.52 0.48 1.58 100 BLCA 2 0.26 26.18 71.36 1.09 0.28 0.25 0.84 100 CANY 15 0.63 27.88 69.24 1.28 0.33 0.28 0.99 100 CARE 1 0.16 33.22 65.30 0.65 0.17 0.15 0.51 100 GRCA 0 0.17 42.18 56.47 0.60 0.15 0.11 0.49 100 GRSA 0 0.13 34.43 61.80 1.70 0.43 0.31 1.32 100 LAGA 0 0.18 84.40 11.79 1.73 0.44 0.29 1.35 100 MABE 0 0.11 87.52 9.48 1.36 0.35 0.24 1.06 100 MEVE 51 1.82 28.91 67.19 1.67 0.43 0.53 1.28 100 PECO 3 0.26 39.06 55.97 2.26 0.58 0.38 1.76 100 PEFO 0 0.11 32.30 65.77 0.86 0.22 0.15 0.70 100 SAPE 13 0.63 42.16 54.46 1.50 0.38 0.34 1.15 100 WEEL 0 0.18 27.35 69.06 1.56 0.40 0.42 1.20 100 WEMI 5 0.41 26.41 71.09 1.08 0.28 0.30 0.84 100 WHPE 0 0.15 35.16 63.32 0.68 0.17 0.13 0.54 100PNM SJGS BART Modeling - Unit 2 Nitrate Repartitioning - 1ppb NH3 Background 2003

Pre-Consent Decree (3) Class I Area No. of Days > 0.5 dv 98th Percentile %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF %_Total ARCH 11 0.78 20.09 75.95 0.94 0.57 0.94 1.50 100 BAND 12 0.65 22.33 73.58 1.04 0.63 0.79 1.63 100 BLCA 7 0.49 20.81 76.57 0.65 0.39 0.55 1.04 100 CANY 16 0.91 28.74 69.37 0.47 0.29 0.36 0.77 100 CARE 5 0.36 24.47 73.71 0.47 0.29 0.24 0.81 100 GRCA 2 0.19 42.19 53.09 1.20 0.73 0.85 1.94 100 GRSA 1 0.20 25.64 72.07 0.57 0.35 0.46 0.91 100 LAGA 2 0.33 34.84 61.60 0.90 0.55 0.70 1.41 100 MABE 0 0.20 17.77 78.88 0.83 0.51 0.71 1.31 100 MEVE 72 2.21 21.10 74.57 0.99 0.60 1.19 1.55 100 PECO 7 0.47 36.46 60.93 0.69 0.42 0.40 1.10 100 PEFO 1 0.16 61.93 32.63 1.41 0.86 0.86 2.30 100 SAPE 23 0.87 20.42 75.46 0.97 0.59 1.03 1.52 100 WEEL 0 0.32 25.28 71.00 0.92 0.56 0.79 1.45 100 WEMI 9 0.53 41.23 39.88 4.51 2.75 4.60 7.02 100 WHPE 2 0.30 27.31 70.64 0.52 0.32 0.39 0.83 100

Baseline - Consent Decree (2) Class I Area No. of Days > 0.5 dv 98th Percentile %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF %_Total ARCH 9 0.71 21.29 76.25 1.06 0.27 0.29 0.83 100 BAND 6 0.43 24.61 72.87 1.13 0.29 0.24 0.87 100 BLCA 2 0.36 29.60 69.04 0.60 0.15 0.14 0.47 100 CANY 14 0.70 30.77 68.05 0.52 0.13 0.11 0.42 100 CARE 3 0.28 25.56 73.27 0.52 0.13 0.08 0.44 100 GRCA 0 0.16 69.23 26.85 1.73 0.44 0.37 1.37 100 GRSA 1 0.16 23.97 73.79 1.00 0.26 0.20 0.79 100 LAGA 1 0.24 33.99 64.15 0.83 0.21 0.14 0.67 100 MABE 0 0.12 33.93 64.36 0.75 0.19 0.17 0.59 100 MEVE 62 1.76 38.12 54.00 3.36 0.86 1.09 2.57 100 PECO 4 0.34 23.05 74.83 0.97 0.25 0.15 0.75 100 PEFO 0 0.12 65.07 31.52 1.53 0.39 0.27 1.23 100 SAPE 13 0.65 25.06 72.61 1.00 0.26 0.30 0.77 100 WEEL 0 0.24 17.71 80.05 0.98 0.25 0.25 0.76 100 WEMI 3 0.39 23.31 71.00 2.47 0.63 0.68 1.91 100 WHPE 0 0.23 26.01 72.20 0.80 0.20 0.17 0.62 100

SNCR (1) Class I Area No. of Days > 0.5 dv 98th Percentile %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF %_Total ARCH 9 0.56 26.91 69.99 1.34 0.34 0.37 1.05 100 BAND 4 0.35 30.79 66.04 1.42 0.36 0.30 1.09 100 BLCA 0 0.29 36.52 61.81 0.74 0.19 0.17 0.58 100 CANY 12 0.57 48.38 49.91 0.75 0.19 0.16 0.60 100 CARE 2 0.23 91.42 0.86 3.36 0.86 0.90 2.59 100 GRCA 0 0.13 39.48 59.01 0.67 0.17 0.12 0.55 100 GRSA 1 0.13 30.08 67.11 1.26 0.32 0.25 0.99 100 LAGA 0 0.19 41.43 56.32 1.02 0.26 0.17 0.81 100 MABE 0 0.10 41.50 56.41 0.92 0.24 0.21 0.72 100 MEVE 54 1.54 44.19 46.66 3.90 1.00 1.27 2.98 100 PECO 1 0.28 45.46 52.55 0.90 0.23 0.15 0.71 100 PEFO 0 0.11 71.41 24.85 1.68 0.43 0.29 1.34 100 SAPE 11 0.52 31.25 65.84 1.25 0.32 0.37 0.96 100 WEEL 0 0.19 27.47 68.61 1.72 0.44 0.43 1.33 100 WEMI 3 0.32 28.88 64.07 3.07 0.78 0.84 2.37 100 WHPE 0 0.18 32.46 65.30 1.00 0.26 0.21 0.78 100PNM SJGS BART Modeling - Unit 3 Nitrate Repartitioning - 1ppb NH3 Background 2001

Pre-Consent Decree (3) Class I Area No. of Days > 0.5 dv 98th Percentile %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF %_Total ARCH 26 1.57 20.29 75.89 0.95 0.58 0.77 1.51 100 BAND 16 0.60 22.77 72.09 1.33 0.82 0.93 2.07 100 BLCA 11 0.68 23.71 71.46 1.22 0.75 0.98 1.89 100 CANY 44 2.01 22.20 74.01 0.93 0.57 0.80 1.48 100 CARE 20 1.30 25.11 72.63 0.55 0.34 0.51 0.86 100 GRCA 9 0.55 27.58 70.19 0.56 0.35 0.41 0.91 100 GRSA 2 0.34 28.57 68.05 0.89 0.55 0.55 1.39 100 LAGA 5 0.48 23.48 73.51 0.76 0.47 0.56 1.21 100 MABE 3 0.28 20.47 72.88 1.66 1.02 1.39 2.58 100 MEVE 105 3.05 41.43 41.99 3.84 2.36 4.42 5.96 100 PECO 10 0.53 29.57 67.24 0.89 0.55 0.35 1.40 100 PEFO 5 0.45 38.33 57.58 1.03 0.63 0.76 1.66 100 SAPE 39 1.23 27.44 69.21 0.82 0.50 0.74 1.28 100 WEEL 7 0.45 32.62 65.62 0.47 0.29 0.26 0.74 100 WEMI 16 0.71 19.95 75.15 1.14 0.70 1.25 1.79 100 WHPE 6 0.44 84.18 10.46 1.34 0.82 1.11 2.10 100

Baseline - Consent Decree (2) Class I Area No. of Days > 0.5 dv 98th Percentile %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF %_Total ARCH 21 1.33 19.89 77.74 1.05 0.26 0.23 0.82 100 BAND 5 0.43 22.99 74.02 1.37 0.35 0.22 1.06 100 BLCA 6 0.49 26.43 70.93 1.19 0.30 0.23 0.92 100 CANY 35 1.67 20.87 76.89 0.98 0.25 0.24 0.77 100 CARE 17 0.99 23.26 75.38 0.59 0.15 0.15 0.46 100 GRCA 7 0.44 24.95 73.68 0.61 0.15 0.13 0.48 100 GRSA 0 0.27 28.15 66.77 2.31 0.58 0.39 1.79 100 LAGA 4 0.35 23.76 74.52 0.77 0.20 0.14 0.61 100 MABE 2 0.22 19.97 76.16 1.71 0.43 0.41 1.32 100 MEVE 77 2.42 22.60 75.76 0.70 0.18 0.22 0.54 100 PECO 3 0.39 35.16 62.59 1.01 0.25 0.20 0.79 100 PEFO 4 0.32 35.88 61.57 1.13 0.29 0.23 0.90 100 SAPE 27 0.95 20.25 77.31 1.07 0.27 0.28 0.82 100 WEEL 5 0.36 22.23 75.96 0.81 0.20 0.17 0.64 100 WEMI 9 0.52 28.06 67.78 1.82 0.46 0.49 1.40 100 WHPE 2 0.31 35.74 61.06 1.44 0.36 0.28 1.12 100

SNCR (1) Class I Area No. of Days > 0.5 dv 98th Percentile %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF %_Total ARCH 19 1.06 25.29 71.70 1.33 0.34 0.30 1.05 100 BAND 2 0.36 27.75 68.32 1.77 0.45 0.34 1.37 100 BLCA 4 0.39 33.01 63.69 1.48 0.37 0.29 1.15 100 CANY 30 1.34 26.45 70.72 1.25 0.31 0.30 0.98 100 CARE 14 0.79 29.44 68.84 0.75 0.19 0.19 0.59 100 GRCA 7 0.35 31.34 66.93 0.76 0.19 0.16 0.61 100 GRSA 0 0.22 34.35 59.46 2.82 0.71 0.47 2.18 100 LAGA 1 0.28 36.53 61.75 0.77 0.19 0.15 0.61 100 MABE 0 0.17 25.19 69.93 2.16 0.55 0.51 1.66 100 MEVE 71 2.11 35.00 59.44 2.37 0.60 0.76 1.82 100 PECO 2 0.33 83.43 12.33 1.90 0.48 0.37 1.48 100 PEFO 2 0.28 88.91 8.61 1.11 0.28 0.22 0.88 100 SAPE 17 0.76 25.65 71.26 1.35 0.34 0.36 1.04 100 WEEL 4 0.29 28.17 69.52 1.02 0.26 0.21 0.81 100 WEMI 4 0.43 38.99 58.82 0.99 0.25 0.18 0.77 100 WHPE 2 0.29 36.01 61.95 0.94 0.24 0.12 0.75 100PNM SJGS BART Modeling - Unit 3 Nitrate Repartitioning - 1 ppb NH3 Background 2002

Pre-Consent Decree (3) Class I Area No. of Days > 0.5 dv 98th Percentile %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF %_Total ARCH 19 1.00 25.02 70.59 1.04 0.64 1.06 1.63 100 BAND 24 0.97 23.54 70.12 1.56 0.96 1.39 2.43 100 BLCA 14 0.63 18.31 77.99 0.89 0.55 0.87 1.39 100 CANY 26 1.21 27.31 69.88 0.70 0.43 0.55 1.12 100 CARE 5 0.40 88.20 1.52 2.56 1.57 2.06 4.08 100 GRCA 4 0.40 38.61 58.67 0.70 0.43 0.46 1.14 100 GRSA 4 0.41 24.01 73.37 0.70 0.43 0.38 1.10 100 LAGA 8 0.50 22.23 71.08 1.69 1.04 1.33 2.63 100 MABE 1 0.27 28.10 68.95 0.76 0.47 0.51 1.21 100 MEVE 109 3.49 24.22 71.80 0.95 0.58 0.98 1.48 100 PECO 11 0.64 31.85 62.09 1.60 0.99 0.94 2.53 100 PEFO 5 0.27 28.59 68.94 0.63 0.39 0.40 1.04 100 SAPE 51 1.48 25.87 69.84 1.06 0.65 0.92 1.66 100 WEEL 7 0.50 29.90 63.98 1.58 0.97 1.06 2.50 100 WEMI 33 1.03 30.27 55.86 3.21 1.97 3.70 4.98 100 WHPE 7 0.45 43.53 54.74 0.44 0.27 0.30 0.72 100

Baseline - Consent Decree (2) Class I Area No. of Days > 0.5 dv 98th Percentile %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF %_Total ARCH 13 0.88 21.35 75.89 1.20 0.30 0.33 0.93 100 BAND 16 0.75 32.70 65.95 0.60 0.15 0.12 0.47 100 BLCA 9 0.52 20.78 77.27 0.86 0.22 0.21 0.67 100 CANY 21 1.12 19.54 78.13 1.00 0.25 0.30 0.77 100 CARE 5 0.28 26.39 72.44 0.51 0.13 0.12 0.40 100 GRCA 3 0.30 33.60 65.30 0.49 0.12 0.09 0.40 100 GRSA 0 0.26 25.26 73.28 0.66 0.17 0.11 0.53 100 LAGA 3 0.35 21.53 76.49 0.88 0.22 0.18 0.69 100 MABE 0 0.21 25.68 69.94 2.03 0.51 0.22 1.62 100 MEVE 87 2.86 22.26 75.45 0.99 0.25 0.29 0.77 100 PECO 7 0.48 31.05 65.04 1.78 0.45 0.30 1.39 100 PEFO 4 0.20 25.87 72.60 0.68 0.17 0.12 0.56 100 SAPE 42 1.14 24.39 72.96 1.17 0.29 0.29 0.91 100 WEEL 4 0.39 27.66 68.61 1.67 0.42 0.33 1.31 100 WEMI 22 0.79 19.17 78.62 0.96 0.24 0.28 0.74 100 WHPE 0 0.34 39.79 59.09 0.50 0.13 0.10 0.40 100

SNCR (1) Class I Area No. of Days > 0.5 dv 98th Percentile %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF %_Total ARCH 12 0.70 26.96 69.56 1.52 0.38 0.41 1.17 100 BAND 12 0.62 39.99 58.36 0.73 0.19 0.15 0.58 100 BLCA 4 0.41 26.34 71.20 1.09 0.27 0.26 0.84 100 CANY 16 0.89 24.83 72.22 1.27 0.32 0.39 0.98 100 CARE 5 0.25 35.22 62.99 0.79 0.20 0.16 0.64 100 GRCA 3 0.25 41.11 57.54 0.60 0.15 0.11 0.49 100 GRSA 0 0.21 85.42 11.36 1.45 0.37 0.27 1.14 100 LAGA 1 0.28 84.33 11.92 1.70 0.43 0.28 1.34 100 MABE 0 0.17 87.28 9.71 1.36 0.34 0.24 1.07 100 MEVE 81 2.37 29.40 66.35 1.82 0.46 0.56 1.40 100 PECO 4 0.40 37.91 57.32 2.17 0.55 0.37 1.69 100 PEFO 1 0.17 93.49 1.65 2.16 0.55 0.44 1.70 100 SAPE 36 0.92 30.47 66.21 1.46 0.37 0.36 1.13 100 WEEL 4 0.31 34.39 61.00 2.07 0.52 0.40 1.61 100 WEMI 12 0.62 24.38 72.80 1.22 0.31 0.35 0.94 100 WHPE 0 0.29 47.75 50.91 0.60 0.15 0.12 0.48 100PNM SJGS BART Modeling - Unit 3 Nitrate Repartitioning - 1ppb NH3 Background 2003

Pre-Consent Decree (3) Class I Area No. of Days > 0.5 dv 98th Percentile %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF %_Total ARCH 16 0.94 23.46 72.52 0.95 0.59 0.97 1.51 100 BAND 25 1.01 24.69 71.07 1.07 0.66 0.83 1.67 100 BLCA 11 0.76 26.94 68.80 1.03 0.63 0.98 1.62 100 CANY 23 1.26 33.30 64.85 0.46 0.29 0.35 0.75 100 CARE 11 0.54 28.70 66.04 1.27 0.78 1.21 2.00 100 GRCA 4 0.31 47.27 48.17 1.16 0.71 0.82 1.87 100 GRSA 3 0.31 43.09 53.30 0.93 0.57 0.66 1.46 100 LAGA 8 0.52 40.55 55.96 0.89 0.55 0.66 1.40 100 MABE 0 0.31 22.87 72.56 1.10 0.68 1.07 1.72 100 MEVE 105 2.92 35.60 56.23 1.91 1.18 2.12 2.97 100 PECO 19 0.75 41.68 55.78 0.67 0.41 0.39 1.06 100 PEFO 3 0.24 32.31 64.02 0.96 0.59 0.54 1.58 100 SAPE 52 1.25 27.23 68.49 1.01 0.62 1.09 1.57 100 WEEL 7 0.44 27.52 68.69 0.93 0.57 0.82 1.46 100 WEMI 22 0.81 27.40 68.93 0.88 0.54 0.85 1.39 100 WHPE 6 0.42 90.31 4.78 1.31 0.80 0.75 2.05 100

Baseline - Consent Decree (2) Class I Area No. of Days > 0.5 dv 98th Percentile %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF %_Total ARCH 13 0.84 21.83 75.78 1.03 0.26 0.29 0.81 100 BAND 14 0.78 23.98 73.46 1.14 0.29 0.25 0.88 100 BLCA 10 0.61 24.17 72.43 1.48 0.37 0.40 1.14 100 CANY 17 1.07 23.31 74.92 0.79 0.20 0.16 0.63 100 CARE 7 0.42 26.87 70.05 1.34 0.34 0.35 1.05 100 GRCA 3 0.22 44.53 52.53 1.30 0.33 0.27 1.04 100 GRSA 2 0.23 25.94 72.51 0.72 0.18 0.08 0.56 100 LAGA 4 0.38 37.45 60.36 0.98 0.25 0.21 0.76 100 MABE 0 0.22 19.48 78.52 0.88 0.22 0.21 0.69 100 MEVE 83 2.41 22.51 74.84 1.13 0.28 0.38 0.87 100 PECO 9 0.55 38.31 60.04 0.74 0.19 0.13 0.59 100 PEFO 1 0.19 18.29 79.90 0.82 0.21 0.15 0.64 100 SAPE 32 1.02 21.75 75.73 1.09 0.27 0.33 0.84 100 WEEL 4 0.39 27.03 70.68 1.00 0.25 0.25 0.78 100 WEMI 15 0.58 46.86 41.17 5.19 1.31 1.49 3.99 100 WHPE 3 0.33 34.28 64.31 0.64 0.16 0.09 0.51 100

SNCR (1) Class I Area No. of Days > 0.5 dv 98th Percentile %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF %_Total ARCH 10 0.67 27.56 69.42 1.30 0.33 0.37 1.02 100 BAND 10 0.63 30.02 66.77 1.43 0.36 0.32 1.10 100 BLCA 7 0.49 30.07 65.71 1.84 0.47 0.49 1.42 100 CANY 15 0.85 29.47 68.28 0.99 0.25 0.21 0.80 100 CARE 3 0.36 91.41 0.86 3.37 0.85 0.91 2.61 100 GRCA 2 0.19 52.07 44.49 1.52 0.38 0.31 1.22 100 GRSA 1 0.19 48.01 49.20 1.25 0.31 0.26 0.97 100 LAGA 1 0.32 44.87 52.50 1.17 0.30 0.26 0.91 100 MABE 0 0.17 24.91 72.54 1.13 0.29 0.26 0.88 100 MEVE 73 2.05 45.59 47.02 3.14 0.79 1.05 2.41 100 PECO 6 0.46 46.04 51.99 0.89 0.23 0.15 0.70 100 PEFO 1 0.16 90.50 5.58 1.76 0.44 0.31 1.41 100 SAPE 20 0.82 27.34 69.48 1.37 0.35 0.41 1.05 100 WEEL 1 0.31 26.97 71.02 0.88 0.22 0.22 0.69 100 WEMI 8 0.52 38.37 51.50 4.46 1.13 1.11 3.43 100 WHPE 2 0.28 92.33 4.11 1.62 0.41 0.27 1.26 100PNM SJGS BART Modeling - Unit 4 Nitrate Repartitioning - 1ppb NH3 Background 2001

Pre-Consent Decree (3) Class I Area No. of Days > 0.5 dv 98th Percentile %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF %_Total ARCH 26 1.60 21.50 74.61 0.98 0.61 0.74 1.56 100 BAND 17 0.60 28.83 68.20 0.75 0.46 0.58 1.18 100 BLCA 11 0.67 23.99 71.26 1.19 0.74 0.96 1.86 100 CANY 45 2.00 21.46 74.32 1.01 0.63 1.00 1.58 100 CARE 21 1.31 25.72 72.08 0.53 0.33 0.50 0.84 100 GRCA 9 0.56 28.24 69.59 0.55 0.34 0.40 0.88 100 GRSA 2 0.35 29.11 67.59 0.87 0.54 0.53 1.36 100 LAGA 5 0.49 26.21 70.21 0.87 0.54 0.81 1.36 100 MABE 3 0.28 20.53 72.95 1.63 1.00 1.36 2.53 100 MEVE 104 3.03 32.66 56.59 2.45 1.51 2.97 3.81 100 PECO 10 0.53 30.14 66.75 0.87 0.53 0.35 1.36 100 PEFO 6 0.45 87.05 9.65 0.84 0.52 0.59 1.35 100 SAPE 41 1.24 21.71 74.16 1.00 0.62 0.96 1.55 100 WEEL 7 0.46 33.46 64.83 0.45 0.28 0.26 0.72 100 WEMI 17 0.70 20.22 74.99 1.12 0.69 1.23 1.75 100 WHPE 6 0.45 84.71 10.19 1.27 0.78 1.05 2.00 100

Baseline - Consent Decree (2) Class I Area No. of Days > 0.5 dv 98th Percentile %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF %_Total ARCH 21 1.31 19.89 77.74 1.04 0.27 0.23 0.82 100 BAND 5 0.42 29.25 69.25 0.67 0.17 0.12 0.53 100 BLCA 6 0.48 22.59 74.52 1.28 0.33 0.29 0.99 100 CANY 34 1.66 20.86 76.90 0.98 0.25 0.23 0.77 100 CARE 17 0.99 23.31 75.33 0.59 0.15 0.15 0.46 100 GRCA 7 0.43 24.96 73.66 0.61 0.16 0.13 0.49 100 GRSA 0 0.27 28.12 66.80 2.31 0.59 0.39 1.79 100 LAGA 4 0.35 29.06 69.56 0.62 0.16 0.12 0.49 100 MABE 2 0.22 19.96 76.16 1.71 0.44 0.41 1.32 100 MEVE 77 2.39 22.59 75.77 0.70 0.18 0.22 0.54 100 PECO 3 0.38 35.00 62.75 1.01 0.26 0.20 0.79 100 PEFO 4 0.31 35.90 61.54 1.13 0.29 0.23 0.90 100 SAPE 25 0.94 20.24 77.32 1.06 0.27 0.28 0.82 100 WEEL 5 0.36 22.09 76.08 0.81 0.21 0.17 0.64 100 WEMI 9 0.51 28.05 67.78 1.81 0.47 0.49 1.40 100 WHPE 2 0.30 35.82 60.97 1.44 0.37 0.28 1.12 100

SNCR (1) Class I Area No. of Days > 0.5 dv 98th Percentile %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF %_Total ARCH 19 1.04 25.29 71.69 1.33 0.34 0.30 1.05 100 BAND 2 0.35 27.75 68.31 1.77 0.46 0.34 1.37 100 BLCA 4 0.39 40.46 57.78 0.76 0.20 0.21 0.59 100 CANY 30 1.33 26.44 70.72 1.24 0.32 0.30 0.98 100 CARE 14 0.79 29.50 68.78 0.75 0.19 0.19 0.59 100 GRCA 7 0.35 31.35 66.92 0.76 0.20 0.16 0.61 100 GRSA 0 0.22 34.31 59.49 2.82 0.73 0.48 2.19 100 LAGA 0 0.28 36.22 62.06 0.77 0.20 0.14 0.61 100 MABE 0 0.17 25.17 69.94 2.16 0.56 0.51 1.67 100 MEVE 71 2.08 41.20 52.01 2.88 0.74 0.95 2.22 100 PECO 2 0.32 83.43 12.33 1.90 0.49 0.37 1.48 100 PEFO 4 0.31 35.90 61.54 1.13 0.29 0.23 0.90 100 SAPE 25 0.94 20.24 77.32 1.06 0.27 0.28 0.82 100 WEEL 4 0.28 28.01 69.68 1.03 0.26 0.21 0.82 100 WEMI 4 0.42 34.54 60.21 2.28 0.59 0.62 1.76 100 WHPE 2 0.28 36.06 61.89 0.94 0.24 0.12 0.75 100PNM SJGS BART Modeling - Unit 4 Nitrate Repartitioning - 1 ppb NH3 Background 2002

Pre-Consent Decree (3) Class I Area No. of Days > 0.5 dv 98th Percentile %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF %_Total ARCH 19 1.05 25.40 70.27 1.03 0.63 1.06 1.61 100 BAND 25 0.98 23.94 69.83 1.54 0.95 1.36 2.39 100 BLCA 14 0.64 18.60 77.81 0.87 0.54 0.84 1.35 100 CANY 26 1.22 27.93 69.33 0.69 0.42 0.54 1.10 100 CARE 5 0.41 88.77 1.47 2.43 1.50 1.95 3.88 100 GRCA 4 0.41 39.46 57.90 0.67 0.42 0.44 1.10 100 GRSA 4 0.39 24.57 72.88 0.69 0.42 0.36 1.08 100 LAGA 7 0.49 23.60 70.60 1.52 0.94 0.97 2.37 100 MABE 2 0.27 28.73 68.37 0.74 0.46 0.50 1.19 100 MEVE 110 3.51 25.67 71.36 0.70 0.43 0.75 1.10 100 PECO 12 0.65 32.51 61.55 1.57 0.97 0.92 2.48 100 PEFO 5 0.27 29.19 68.41 0.62 0.38 0.39 1.02 100 SAPE 51 1.48 26.41 69.38 1.04 0.64 0.90 1.63 100 WEEL 7 0.49 23.62 71.38 1.21 0.74 1.18 1.87 100 WEMI 32 1.03 30.31 56.03 3.16 1.95 3.64 4.91 100 WHPE 7 0.46 44.72 53.60 0.43 0.26 0.29 0.69 100

Baseline - Consent Decree (2) Class I Area No. of Days > 0.5 dv 98th Percentile %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF %_Total ARCH 13 0.88 21.33 75.90 1.20 0.31 0.33 0.93 100 BAND 16 0.73 32.71 65.93 0.60 0.16 0.12 0.48 100 BLCA 8 0.51 20.80 77.25 0.85 0.22 0.20 0.67 100 CANY 22 1.11 19.59 78.11 0.99 0.25 0.30 0.76 100 CARE 5 0.27 26.40 72.43 0.51 0.13 0.12 0.40 100 GRCA 3 0.30 33.52 65.38 0.49 0.13 0.09 0.40 100 GRSA 0 0.26 21.36 77.06 0.70 0.18 0.12 0.57 100 LAGA 2 0.35 21.57 76.45 0.88 0.23 0.18 0.70 100 MABE 0 0.21 25.67 69.94 2.02 0.52 0.22 1.63 100 MEVE 87 2.82 22.22 75.49 0.99 0.25 0.29 0.77 100 PECO 7 0.47 31.11 64.97 1.78 0.46 0.30 1.39 100 PEFO 4 0.20 25.88 72.58 0.69 0.18 0.12 0.56 100 SAPE 42 1.11 24.36 72.96 1.17 0.30 0.29 0.91 100 WEEL 4 0.38 27.60 68.66 1.67 0.43 0.33 1.31 100 WEMI 21 0.70 19.58 77.34 1.32 0.34 0.39 1.02 100 WHPE 0 0.34 39.67 59.21 0.50 0.13 0.10 0.40 100

SNCR (1) Class I Area No. of Days > 0.5 dv 98th Percentile %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF %_Total ARCH 12 0.70 26.94 69.57 1.52 0.39 0.41 1.17 100 BAND 11 0.60 40.00 58.34 0.74 0.19 0.15 0.58 100 BLCA 4 0.40 26.36 71.17 1.08 0.28 0.26 0.84 100 CANY 15 0.89 24.89 72.19 1.25 0.32 0.38 0.97 100 CARE 5 0.25 35.22 62.98 0.79 0.20 0.17 0.64 100 GRCA 3 0.25 41.02 57.63 0.59 0.15 0.11 0.49 100 GRSA 0 0.20 85.37 11.40 1.45 0.37 0.27 1.14 100 LAGA 1 0.28 84.29 11.95 1.70 0.44 0.28 1.34 100 MABE 0 0.17 31.73 62.84 2.50 0.64 0.27 2.01 100 MEVE 80 2.35 29.19 66.58 1.81 0.47 0.56 1.40 100 PECO 4 0.39 37.97 57.24 2.17 0.56 0.37 1.70 100 PEFO 1 0.17 93.49 1.65 2.15 0.56 0.44 1.71 100 SAPE 33 0.90 30.42 66.24 1.46 0.38 0.36 1.14 100 WEEL 3 0.31 34.33 61.06 2.06 0.53 0.40 1.61 100 WEMI 11 0.56 24.79 71.32 1.67 0.43 0.50 1.29 100 WHPE 0 0.28 47.62 51.04 0.60 0.15 0.12 0.48 100PNM SJGS BART Modeling - Unit 4 Nitrate Repartitioning - 1ppb NH3 Background 2003

Pre-Consent Decree (3) Class I Area No. of Days > 0.5 dv 98th Percentile %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF %_Total ARCH 16 0.98 23.74 72.31 0.94 0.58 0.96 1.49 100 BAND 25 1.02 25.26 70.60 1.05 0.65 0.81 1.64 100 BLCA 11 0.77 27.92 69.72 0.59 0.36 0.47 0.93 100 CANY 23 1.28 34.14 64.05 0.45 0.28 0.34 0.73 100 CARE 11 0.55 88.23 0.97 2.61 1.61 2.49 4.09 100 GRCA 4 0.31 48.24 47.35 1.12 0.69 0.80 1.81 100 GRSA 3 0.31 21.75 73.22 1.27 0.79 0.97 2.00 100 LAGA 8 0.52 41.41 55.20 0.86 0.53 0.65 1.35 100 MABE 0 0.28 21.47 75.12 0.83 0.51 0.74 1.31 100 MEVE 105 2.91 35.46 56.73 1.83 1.13 2.01 2.84 100 PECO 19 0.76 42.63 54.92 0.65 0.40 0.37 1.03 100 PEFO 3 0.25 88.57 6.28 1.34 0.83 0.81 2.17 100 SAPE 52 1.27 27.77 68.06 0.98 0.60 1.06 1.53 100 WEEL 7 0.43 28.04 68.26 0.91 0.56 0.81 1.43 100 WEMI 20 0.81 31.12 54.98 3.41 2.10 3.08 5.31 100 WHPE 6 0.42 38.69 59.22 0.56 0.35 0.29 0.90 100

Baseline - Consent Decree (2) Class I Area No. of Days > 0.5 dv 98th Percentile %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF %_Total ARCH 13 0.82 21.83 75.77 1.03 0.27 0.29 0.81 100 BAND 14 0.75 23.85 73.57 1.14 0.29 0.25 0.89 100 BLCA 10 0.60 24.32 72.29 1.48 0.38 0.39 1.14 100 CANY 17 1.04 23.31 74.91 0.79 0.20 0.16 0.63 100 CARE 7 0.41 26.82 70.11 1.33 0.34 0.35 1.04 100 GRCA 3 0.22 44.62 52.43 1.30 0.34 0.27 1.04 100 GRSA 1 0.23 25.90 72.56 0.71 0.18 0.08 0.56 100 LAGA 4 0.37 37.40 60.40 0.98 0.25 0.22 0.76 100 MABE 0 0.21 19.50 78.49 0.88 0.23 0.21 0.69 100 MEVE 82 2.34 22.52 74.82 1.13 0.29 0.38 0.87 100 PECO 8 0.54 38.31 60.05 0.74 0.19 0.13 0.59 100 PEFO 1 0.19 18.26 79.92 0.82 0.21 0.15 0.64 100 SAPE 30 1.00 21.78 75.69 1.08 0.28 0.33 0.84 100 WEEL 3 0.36 19.69 78.32 0.88 0.23 0.19 0.69 100 WEMI 15 0.58 28.17 69.86 0.85 0.22 0.26 0.65 100 WHPE 3 0.33 34.29 64.29 0.64 0.17 0.10 0.51 100

SNCR (1) Class I Area No. of Days > 0.5 dv 98th Percentile %_SO4 %_NO3 %_OC %_EC %_PMC %_PMF %_Total ARCH 11 0.66 27.56 69.41 1.30 0.34 0.37 1.02 100 BAND 11 0.60 29.87 66.90 1.43 0.37 0.32 1.11 100 BLCA 7 0.48 30.25 65.54 1.84 0.47 0.49 1.42 100 CANY 15 0.83 29.47 68.28 0.99 0.26 0.21 0.80 100 CARE 3 0.35 91.39 0.86 3.36 0.87 0.91 2.61 100 GRCA 2 0.19 52.16 44.40 1.52 0.39 0.31 1.22 100 GRSA 1 0.18 48.14 49.05 1.25 0.32 0.26 0.98 100 LAGA 1 0.31 31.22 65.56 1.43 0.37 0.32 1.10 100 MABE 0 0.17 24.92 72.51 1.13 0.29 0.27 0.88 100 MEVE 72 2.01 45.48 47.12 3.14 0.81 1.04 2.41 100 PECO 5 0.46 46.03 51.99 0.89 0.23 0.15 0.71 100 PEFO 1 0.19 18.26 79.92 0.82 0.21 0.15 0.64 100 SAPE 30 1.00 21.78 75.69 1.08 0.28 0.33 0.84 100 WEEL 1 0.29 25.05 72.43 1.12 0.29 0.24 0.88 100 WEMI 8 0.51 38.32 51.54 4.45 1.15 1.11 3.44 100 WHPE 2 0.27 92.32 4.11 1.62 0.42 0.27 1.26 100