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Compliance History Report PUBLISHED Compliance History Report for CN601365448, RN102342144, Rating Year 2015 which includes Compliance History (CH) components from September 1, 2010, through August 31, 2015.

Customer, Respondent, CN601365448, North Texas Municipal Classification: SATISFACTORY Rating: 1.25 or Owner/Operator: Water District Regulated Entity: RN102342144, NORTH TEXAS Classification: SATISFACTORY Rating: 0.79 MUNICIPAL WATER DISTRICT ROWLETT CREEK Complexity Points: 8 Repeat Violator: NO CH Group: 08 - Sewage Treatment Facilities Location: LOCATED AT 1600 LOS RIOS BOULEVARD WITH AN ASSOCIATED SEWER MAIN LOCATED NEAR THE 600 BLOCK OF EXECUTIVE DRIVE IN PLANO, COLLIN COUNTY, TEXAS TCEQ Region: REGION 04 - DFW METROPLEX ID Number(s): AIR NEW SOURCE PERMITS ACCOUNT NUMBER CP0045I WASTEWATER PERMIT WQ0010363001 WASTEWATER AUTHORIZATION R10363001 WASTEWATER EPA ID TX0047911 PRETREATMENT PERMIT WQ0010363001 PRETREATMENT EPA ID TX0047911000 WASTEWATER LICENSING LICENSE WQ0010363001 Compliance History Period: September 01, 2010 to August 31, 2015 Rating Year: 2015 Rating Date: 09/01/2015 Date Compliance History Report Prepared: January 13, 2016 Agency Decision Requiring Compliance History: Enforcement Component Period Selected: January 12, 2011 to January 12, 2016 TCEQ Staff Member to Contact for Additional Information Regarding This Compliance History. Name: Claudia Corrales Phone: (512) 239-4935

Site and Owner/Operator History: 1) Has the site been in existence and/or operation for the full five year compliance period? YES 2) Has there been a (known) change in ownership/operator of the site during the compliance period? NO 3) If YES for #2, who is the current owner/operator? N/A 4) If YES for #2, who was/were the prior N/A owner(s)/operator(s)? 5) If YES, when did the change(s) in owner or operator N/A occur? Components (Multimedia) for the Site Are Listed in Sections A - J A. Final Orders, court judgments, and consent decrees: N/A B. Criminal convictions: N/A C. Chronic excessive emissions events: N/A D. The approval dates of investigations (CCEDS Inv. Track. No.): Item 1 February 22, 2011 (909670) Item 2 February 28, 2011 (926681) Item 3 March 21, 2011 (916892)

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Item 4 May 20, 2011 (938606) Item 5 June 21, 2011 (945976) Item 6 August 19, 2011 (971957) Item 7 August 24, 2011 (959874) Item 8 September 22, 2011 (965915) Item 9 November 21, 2011 (978122) Item 10 December 21, 2011 (984893) Item 11 March 21, 2012 (1004078) Item 12 May 21, 2012 (1017018) Item 13 June 22, 2012 (1024781) Item 14 July 23, 2012 (1032139) Item 15 September 21, 2012 (1047432) Item 16 October 18, 2012 (1063776) Item 17 November 15, 2012 (1063777) Item 18 December 19, 2012 (1063778) Item 19 February 22, 2013 (1080231) Item 20 March 18, 2013 (1089906) Item 21 May 20, 2013 (1107245) Item 22 June 24, 2013 (1110910) Item 23 August 22, 2013 (1125570) Item 24 September 23, 2013 (1130136) Item 25 October 22, 2013 (1135888) Item 26 November 26, 2013 (1141282) Item 27 December 23, 2013 (1147747) Item 28 February 24, 2014 (1161130) Item 29 April 15, 2014 (1151306) Item 30 May 23, 2014 (1181112) Item 31 June 23, 2014 (1188014) Item 32 July 22, 2014 (1199539) Item 33 August 22, 2014 (1231566) Item 34 September 02, 2014 (1199540) Item 35 November 24, 2014 (1219065) Item 36 December 22, 2014 (1224847) Item 37 February 23, 2015 (1242868) Item 38 March 25, 2015 (1249222) Item 39 April 29, 2015 (1256107) Item 40 May 26, 2015 (1277522) Item 41 September 26, 2015 (1290857) Item 42 October 21, 2015 (1297047) E. Written notices of violations (NOV) (CCEDS Inv. Track. No.): A notice of violation represents a written allegation of a violation of a specific regulatory requirement from the commission to a regulated entity. A notice of violation is not a final enforcement action, nor proof that a violation has actually occurred. 1 Date: 04/30/2015 (1262825) CN601365448 Self Report? YES Classification: Moderate Citation: 2D TWC Chapter 26, SubChapter A 26.121(a) 30 TAC Chapter 305, SubChapter F 305.125(1) Description: Failure to meet the limit for one or more permit parameter 2 Date: 05/31/2015 (1269991) CN601365448 Self Report? YES Classification: Moderate Citation: 2D TWC Chapter 26, SubChapter A 26.121(a) 30 TAC Chapter 305, SubChapter F 305.125(1) Description: Failure to meet the limit for one or more permit parameter 3 Date: 07/31/2015 (1283700) CN601365448 Self Report? YES Classification: Moderate Citation: 2D TWC Chapter 26, SubChapter A 26.121(a) 30 TAC Chapter 305, SubChapter F 305.125(1) Description: Failure to meet the limit for one or more permit parameter

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4 Date: 10/31/2015 (1302496) CN601365448 Self Report? YES Classification: Moderate Citation: 2D TWC Chapter 26, SubChapter A 26.121(a) 30 TAC Chapter 305, SubChapter F 305.125(1) Description: Failure to meet the limit for one or more permit parameter F. Environmental audits: Notice of Intent Date: 04/06/2015 (1241831) No DOV Associated G. Type of environmental management systems (EMSs): N/A H. Voluntary on-site compliance assessment dates: N/A I. Participation in a voluntary pollution reduction program: N/A J. Early compliance: N/A Sites Outside of Texas: N/A