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HomeMy WebLinkAboutNC0071528_Permit Modification_20070814Michael F. Easley, Governor William G. Ross Jr., Secretary North Carolina Department of Environment and Natural Resources Coleco H. Sullins, Director Division of Water Quality August 14, 2007 Mr. Dale H. Norman Lake Norman Woods HOA 8469 Marina Lane Catawba, NC 28609 Subject: Permit Modification of NPDES Permit NCO071528 Lake Norman Woods WWTP Iredell County Dear Mr. Norman: Division personnel have reviewed and approved your application for a permit modification received on June 13, 2007. You requested that the monitoring frequency for Fecal Coliform, during the summer months, be changed from daily to weekly monitoring. The Division agrees with this request and has modified the permit accordingly. We are forwarding the attached NPDES discharge permit effluent page with the requested change. You should replace your existing effluent page from your current permit with this modified effluent page. This permit modification is issued pursuant to the requirements of North Carolina General Statute 143-215.1 and the Memorandum of Agreement between North Carolina and the U.S. Environmental Protection Agency dated May 9, 1994 (or as subsequently amended). If any parts, measurement frequencies or sampling requirements contained in this permit are unacceptable to you, you have the right to an adjudicatory hearing upon written request within thirty (30) days following receipt of this letter. This request must be in the form of a written petition, conforming to Chapter 150E of the North Carolina General Statutes, and filed with the Office of Administrative Hearings (6714 Mail Service Center, Raleigh, North Carolina 27699-6714). Unless such demand is made, this decision shall be final and binding. Please note that this permit is not transferable except after notice to the Division. The Division may require modification or revocation and reissuance of the permit. This permit does not affect the legal requirements to obtain other permits which may be required by the Division of Water Quality or permits required by the Division of Land Resources, the Coastal Area Management Act or any other Federal or Local governmental permit that may be required. If you have any questions concerning this permit, please contact Bob Guerra at telephone number (919) 733-5083, extension 539. Since ely, ,, oleen H. Sullins Aft: NCO071528 Modified effluent page cc: Central Files Mooresville Regional Office/Surface Water Protection NPDES Unit a` yCarojipa htc )? North Carolina Division of Water Quality 1617 Mail Service Center Raleigh, NC 27699-1617 Phone (919) 733-7015 Customer Service Internet www.ncwatergualitv.ore Location: 512 N. Salisbury St. Raleigh, NC 27604 Fax (919) 733-2496 1-877-623-6748 An Equal Opportunity/Affirmative Action Employer -50% Recycled°h Post Consumer Paper NCO071528 A. (1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS — FINAL During the period beginning on the effective date of this permit and lasting until expiration, the Permittee is authorized to discharge from outfall 001. Such discharges shall be limited and monitored by the Permittee as specified below: EFFLUENT CHARACTERISTICS -LIMITS �. . MONITORING.REQUIREMENTS �� � .Monthly` Avera a : Daily Maximum A suremen# Fre uanc Sample Tye SampleIcation Flow 0.025 MGD Weekly Instantaneous Influent or Effluent BOD, 5-day (20°C) 15.0 mg/L 22.5 mg/L Weekly Grab Effluent Total Suspended Solids 30.0 mg/L 45.0 mg/L Weekly Grab Effluent NH3 as N (year around monitoring required) 4.0 mg/L 20.0 mg/I Weekly Grab Effluent Dissolved Oxygeni Weekly Grab Effluent Fecal Coliform (geometric mean) 200/ 100 mL 400/100 mL Weekly Grab Effluent Total Residual Chlorine2 28 ug/L 2/Week Grab Effluent Temperature (°C) Weekly Grab Effluent pH3 Weekly Grab Effluent Footnotes: 1. The daily average dissolved oxygen effluent concentration shall not be less than 6.0 mg/L. 2. Limit takes effect February 1, 2007. Until the limit takes effect, the permittee shall monitor TRC (with no effluent limit). 3. The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units. There shall be no discharge of floating solids or visible foam in other than trace amounts. DIVISION OF WATER QUALITY July 10, 2007 Memo To: Bob Guerra From: Rob Krebs Prepared By: Michael Parker/(/U✓/' Subject: Effluent Monitoring Change Request Lake Norman Woods NPDES Permit No. NC0071528 Iredell County Per your memo received in this Office on June 27, 2007, this Office has reviewed the request from Mr. Dale Norman, Board Member, Lake Norman Woods Homeowners Association (LNWHOA) regarding a change in the subject facilities effluent monitoring for fecal coliform during the summer months (April through October) from daily to weekly. Mr. Norman indicated in his request that it was a significant financial burden for the LNWHOA to collect the additional fecal coliform samples when analytical testing over the past 5 years has not provided sufficient evidence to support the need for the extra testing that was required in the most recent renewal of the subject NPDES permit (only 4 fecal values exceeded the daily max limit in the past five years). The LNWHOA (as well as 17 other owners of package WWT facilities discharging to Lake Norman) were required to increase effluent fecal coliform monitoring beginning in 2000 as part of a Division policy instituted to promote public confidence in the ability of these type plants to protect WQ. This policy was created in part as a result of litigation between the Division and the Catawba River Keeper of NPDES permit No. NC0074900. The decision of the ALJ (and later the NPDES Committee) forced the Division to develop a policy that involves a more proactive stance towards demonstrating effluent quality for facilities discharging into Class B waters during the months when frequent bodily contact is expected. In a Division memo dated October 19, 2001 from Mike Myers to Coleen Sullins, an evaluation was made of this new "policy" and its potential effect on the 18 affected Lake Norman dischargers. The minimum anticipated increase for each facility to conduct the additional fecal monitoring was estimated to be = $6650 a year. This additional cost could be absorbed by the larger utility companies who have the ability to pass these costs on to their customers through rate increases, but for smaller facilities such the the 16-home LNWHOA, this can be a significant expense. The October 19" memo also recommended that this policy be reevaluated periodically and modifications made, if necessary. Bob Guerra Page Two Recommendations The policy utilized to establish the increased fecal coliform monitoring was not based on scientific evidence, but rather in response to a court decision that forced the Division to develop ways to address public concern over the impact of these package WWTPs and the associated recreational activities taking place in the receiving waters. The staff of this Office is unaware of any analytical data presented to -date documenting a relationship between any package WWTP and high fecal coliform levels in Class B waters. Furthermore, should elevated fecal coliform levels be found in Class B water supply reservoirs (such as Lake Norman), the sources of the contamination are far more likely to be failing septic systems, which dominate Lake Norman's shoreline, rather than from any of the discharges from the small number of package WWTPs discharging directly to the mainstem of the Catawba River. Such being the case, we recommend that the request to reduce effluent fecal coliform monitoring from daily to weekly during the summer months be approved. If you have any questions, please advise. Lake Norman Woods Homeowners Association 8469 Marina Lane Catawba, NC 28609 336 710-5457 dnorman@hardybros.com May 29, 2007 Mr. Bob Guerra NCDENR Division of Water Quality 1617 Mail Service Center Raleigh, NC 27699-1617 ! i<I J U N 1 3 2007 I L--,. DF;R - WAIER DU LIIY MIJT S003HE Re: NPDES Permit NCO071528 fecal coliform monitoring requirements Dear Mr. Guerra: As we discussed, Lake Norman Woods Homeowners Association owns a package wastewater treatment plant located in Catawba County. The plant was built in 1987 to serve a proposed development of 66 lots but later that was scaled back to only 35 lots. We currently have 16 occupied homes and 4 under construction. Presently, Statesville Analytical conducts our DMR testing and daily operation at the plant. Our previous NPDES permit required our operator to test weekly for fecal coliform and our August 1, 2005 renewal now requires daily fecal coliform testing during the period April 15t until October 31 st. The cost involved with additional testing has placed a tremendous financial burden on the homeowners association. We maintain the plant with the uppermost standards and have experienced no major violations or spills. I have included our fecal count test results from January 4, 2002 to May 27, 2007 for your review. I am requesting a revision to our current permit by returning our permit requirement to weekly fecal coliform testing on a year round basis. We will appreciate your consideration. Please contact me at 336 710-5457 or 800 525-5354 if additional information is required. Sincerely,, Dale H. Norman Board member Lake Norman Woods HOA LNW -Fecal Count Jan. 2002 - May 2007 Exhibit A Date Sampled Fecal Count Jan. 4, 2002 <1 Jan. 8, 2002 <1 Jan. 15, 2002 46 Jan. 22, 2002 <1 Jan. 30, 2002 <1 Feb. 5, 2002 <1 Feb. 12, 2002 <1 Feb. 19, 2002 <1 Feb. 26, 2002 <1 March 5, 2002 4 March 12, 2002 <1 March 19. 2002 <1 March 26, 2002 <1 April 3, 2002 > 560 April 9, 2002 8 April 17, 2002 2 A ril 23, 2002 <1 April 30, 2002 <1 Ma 8, 2002 <2 May 14, 2002 <2 May 21, 2002 1 May 28, 2002 <1 June 4, 2002 <1 June 11, 2002 <1 June 18, 2002 <1 June 25, 2002 <1 July 2, 2002 <1 July 9, 2002 <1 July 16, 2002 <1 July 23, 2002 4 July 30, 2002 <1 Au . 6, 2002 <1 Au . 13, 2002 <1 Au . 20, 2002 5 Au . 27, 2002 8 Sept. 5, 2002 <1 Sept. 10, 2002 <1 Sept. 17, 2002 2 Sept. 24, 2002 <1 Oct. 1, 2002 <1 Oct. 8, 2002 1 Oct. 15, 2002 <1 Oct. 22, 2002 <1 Oct. 29, 2002 <1 Nov. 5, 2002 1 Nov. 14, 2002 >6000 LNW Fecal Count Jan. 2002 - May 2007 Nov. 19, 2002 <1 Nov. 21, 2002 <1 Date Sampled Fecal Count Nov. 22, 2002 <1 Nov. 25, 2002 <1 Nov. 26, 2002 <1 Dec. 3, 2002 <1 Dec. 12, 2002 <1 Dec. 17, 2002 <2 Dec. 24, 2002 <1 Dec. 31, 2002 <1 Jan. 7, 2003 <1 Jan. 15, 2003 <1 Jan. 21, 2003 <1 Jan. 28, 2003 12 Feb. 4, 2003 <1 Feb. 11, 2003 <1 Feb. 18, 2003 <1 Feb. 25, 2003 <1 March 4, 2003 <1 March 13, 2003 <1 March 18, 2003 <1 March 25, 2003 <1 April 1, 2003 <1 March 8, 2003 <1 March 15, 2003 <1 March 22, 2003 <1 March 29, 2003 <1 May 6, 2003 <1 May 13, 2003 <1 May 22, 2003 <1 May 28, 2003 <1 June 3, 2003 <1 June 10, 2003 2 June 19, 2003 <1 June 24, 2003 <1 July 1, 2003 <1 July 8, 2003 <1 July 15, 2003 <1 July 22, 2003 <1 July 29, 2003 <1 Au . 6, 2003 <1 Au . 12, 2003 <1 Au . 19, 2003 <1 Au . 26, 2003 <1 Sept. 2, 2003 <1 Sept. 9, 2003 <1 Sept. 16, 2003 <1 Sept. 23, 2003 <1 Sept. 303, 2003 <1 LNW Fecal Count Jan. 2002 - May 2007 Oct. 7, 2003 <1 Date Sampled Fecal Count Oct. 14, 2003 <1 Oct. 21, 2003 <1 Oct. 28, 2003 <1 Nov. 4, 2003 <1 Nov. 12, 2003 <1 Nov. 18, 2003 <1 Nov. 25, 2003 1 Dec. 2, 2003 <1 Dec. 9, 2003 <1 Dec. 16, 2003 <1 Dec. 23, 2003 <1 Dec. 30, 2003 <1 Jan. 6, 2004 <1 Jan. 13, 2004 <1 Jan. 20, 2004 <1 Jan. 28, 2004 <1 Feb. 3, 2004 <1 Feb. 10, 2004 <1 Feb. 17, 2004 <1 Feb. 24, 2004 <1 March 2, 2004 <1 March 9, 2004 <1 March 16, 2004 5 March 23, 2004 155 March 30, 2004 400 April 6, 2004 <1 April 14, 2004 <1 April 20, 2004 <1 April 27, 2004 <1 May 4, 2004 2 May 11, 2004 <1 May 18, 2004 <1 May 25, 2004 <1 June 4, 2004 136 June 8, 2004 <1 June 15, 2004 <1 June 22, 2004 <1 June 29, 2004 <1 July 8, 2004 <1 July 13, 2004 <1 July 20, 2004 <1 July 28, 2004 <1 Au . 3, 2004 <1 Au . 10, 2004 <1 Au . 17, 2004 <1 Au . 24, 2004 <1 Au . 31, 2004 <1 LNW Fecal Count Jan. 2002 - May 2007 Sept. 7, 2004 <1 Sept. 14, 2004 <1 Date Sampled Fecal Count Sept. 21, 2004 <1 Sept. 30, 2004 2 Oct. 5, 2004 <1 Oct. 12, 2004 <1 Oct. 19, 2004 <1 Oct. 26, 2004 <1 Nov. 2, 2004 <1 Nov. 9, 2004 <1 Nov. 16, 2004 <1 Nov. 24, 2004 <1 Nov. 30, 2004 <1 Dec. 7, 2004 <1 Dec. 14, 2004 <1 Dec. 21, 2004 <1 Dec. 28, 2004 <1 Jan. 4, 2005 <1 Jan. 11, 2005 1 Jan. 18, 2005 <1 Jan. 25, 2005 <1 Feb. 1, 2005 <1 Feb. 8, 2005 <1 Feb. 15, 2005 <1 Feb. 22, 2005 <1 March 1, 2005 <1 March 8, 2005 <1 March 16, 2005 <1 March 22, 2005 1 March 29, 2005 2 April 7, 2005 <1 April 12, 2005 <1 April 19, 2005 <1 April 26, 2005 <1 May 3, 2005 <1 May 10, 2005 <1 May 17, 2005 <1 May 24, 2005 1 June 1, 2005 4 June 7, 2005 <1 June 14, 2005 2 June 21, 2005 <1 June 28, 2005 <1 July 6, 2005 2 July 12, 2005 <1 July 19, 2005 <1 July 26, 2005 <1 Au . 2, 2005 25 Au . 11, 2005 230 LNW'I`ecal Count Jan. 2002 - May 2007 Au . 16, 2005 <1 Au . 23, 2005 <1 Date Sampled Fecal Count Au . 30, 2005 <1 Sept. 7, 2005 <1 Sept. 13, 2005 <1 Sept. 20, 2005 <1 Sept. 27, 2005 8 Oct. 4, 2005 <1 Oct. 11, 2005 <1 Oct. 12, 2005 <1 Oct. 13, 2005 <1 Oct. 14, 2005 <1 Oct. 15, 2005 <1 Oct. 16, 2005 <1 Oct. 17, 2005 <1 Oct. 18, 2005 <1 Oct. 19, 2005 <1 Oct. 20, 2005 <1 Oct. 21, 2005 <1 Oct. 22, 2005 <1 Oct. 23, 2005 <1 Oct. 24, 2005 <1 Oct. 25, 2005 <1 Oct. 26, 2005 8 Oct. 27, 2005 <1 Oct. 28, 2005 <1 Oct. 29, 2005 <1 Oct. 30, 2005 <1 Oct. 31, 2005 <1 Nov. 1, 2005 <1 Nov. 8, 2005 <1 Nov. 17, 2005 2 Nov. 21, 2005 <1 Nov. 29, 2005 <1 Dec. 6, 2005 <1 Dec. 12, 2005 <1 Dec. 19, 2005 <1 Dec. 27, 2005 14 Jan. 3, 2006 <1 Jan. 10, 2006 1 Jan. 17, 2006 <1 Jan. 24, 2006 3 Jan. 31, 2006 <1 Feb. 7, 2006 <1 Feb. 14, 2006 <1 Feb. 21, 2006 <1 1-Mar-06 <1 7-Mar-06 <1 13-Mar-06 <1 LNW Fecal count Jan. 2002 - May 2007 21-Mar-06 <1 28-Mar-06 <1 Date Sampled Fecal Count April 1, 2006 <1 April 2, 2006 <1 April 3, 2006 <1 April 4, 2006 <1 April 6, 2006 <1 April 7, 2006 <1 April 8, 2006 <1 April 9, 2006 <1 April 10, 2006 <1 April 11, 2006 <1 April 12, 2006 <1 April 13, 2006 <1 April 14, 2006 <1 April 15, 2006 <1 April 16, 2006 <1 April 17, 2006 <1 April 18, 2006 <1 April 19, 2006 37 April 20, 2006 <1 April 21, 2006 <1 April 22, 2006 1 April 23, 2006 1 April 24, 2006 7 April 25, 2006 4 April 26, 2006 <1 April 27, 2006 <1 April 28, 2006 <1 April 29, 2006 <1 April 30, 2006 <1 May 1, 2006 <1 May 2, 2006 <1 May 3, 2006 <1 May 4, 2006 <1 May 5, 2006 <1 May 6, 2006 <1 May 7, 2006 1 May 8, 2006 <1 May 10, 2006 <1 May 11, 2006 <1 May 12, 2006 <1 May 13, 2006 <1 May 14, 2006 <1 May 15, 2006 <1 May 16, 2006 <1 May 17, 2006 3800 May 18, 2006 <1 May 19, 2006 <1 LNW Fecal Count Jan. 2002 - May 2007 May 20, 2006 <1 May 21, 2006 <1 Date Sampled- Fecal Count May 22, 2006 <1 May 23, 2006 <1 May 24, 2006 1 May 25, 2006 <1 May 26, 2006 <1 May 27, 2006 <1 May 28, 2006 <1 May 29, 2006 <1 May 30, 2006 <1 May 31, 2006 <1 June 1, 2006 <1 June 2, 2006 <1 June 3, 2006 <1 June 4, 2006 <1 June 5, 2006 <1 June 6, 2006 <1 June 7, 2006 <1 June 8, 2006 <1 June 9, 2006 <1 June 10, 2006 <1 June 11, 2006 <1 June 12, 2006 4 June 13, 2006 <1 June 14, 2006 <1 June 15, 2006 <1 June 16, 2006 <1 June 17, 2006 <1 June 18, 2006 <1 June 19, 2006 <1 June 20, 2006 <1 June 21, 2006 <1 June 22, 2006 <1 June 23, 2006 <1 June 24, 2006 <1 June 25, 2006 <1 June 26, 2006 <1 June 27, 2006 2 June 28, 2006 <1 June 29, 2006 <1 June 30, 2006 <1 July 1, 2006 <1 July 2, 2006 <1 July 3, 2006 <1 July 4, 2006 5 July 5, 2006 <1 July 6, 2006 <1 July 7, 2006 <1 LMW Fecal Count Jan. 2002 - May 2007 July 8, 2006 71 Jui 9, 2006 <1 Date Sampled Fecal Count July 10, 2006 <1 July 11, 2006 10 July 12, 2006 <1 July 13, 2006 <1 July 14, 2006 <1 July 15, 2006 <1 July 16, 2006 <1 July 17, 2006 <1 Juiy 18, 2006 19 July 19, 2006 <1 July 20, 2006 <1 July 21, 2006 <1 July 22, 2006 <1 July 23, 2006 <1 July 24, 2006 <1 July 25, 2006 <1 July 26, 2006 <1 July 27, 2006 <1 July 28, 2006 <1 July 29, 2006 <1 July 30, 2006 <1 July 31, 2006 <1 Au . 1, 2006 <1 Au . 2, 2006 <1 Au . 3, 2006 <1 Au . 4, 2006 <1 Au . 5, 2006 <1 Au . 6, 2006 <1 Au . 7, 2006 <1 Au . 8, 2006 <1 Au . 9, 2006 <1 Aug. 10, 2006 <1 Au . 11, 2006 <1 Au . 12, 2006 <1 Au . 13, 2006 <1 Aug. 14, 2006 <1 Aug. 15, 2006 <1 Aug. 16, 2006 <1 Au . 17, 2006 <1 Aug. 18, 2006 <1 Aug. 19, 2006 <1 Au . 20, 2006 <1 A u. 21, 2006 <1 Au . 22, 2006 <1 Au . 23, 2006 <1 Au . 24, 2006 <1 Au . 25, 2006 <1 LNW recal Count Jan. 2002 - May 2007 Au . 26, 2006 <1 Au . 27, 2006 <1 Date Sampled Fecal Count Au . 28, 2006 <1 Au . 29, 2006 <1 Au . 30, 2006 <1 Au . 31, 2006 <1 Sept. 1, 2006 <1 Sept. 2, 2006 <1 Sept. 3, 2006 <1 Sept. 4, 2006 11 Sept. 5, 2006 260 Sept. 6, 2006 <1 Sept. 7, 2006 <1 Sept. 8, 2006 <1 Sept. 9, 2006 <1 Sept. 10, 2006 <1 Sept. 11, 2006 <1 Sept. 12, 2006 <1 Sept. 13, 2006 <1 Sept. 14, 2006 <1 Sept. 15, 2006 <1 Sept. 16, 2006 <1 Sept. 17, 2006 <1 Sept. 18, 2006 <1 Sept. 19, 2006 <1 Sept. 20, 2006 <1 Sept. 21, 2006 <1 Sept. 22, 2006 <1 Sept. 23, 2006 <1 Sept. 24, 2006 <1 Sept, 25, 2006 <1 Sept. 26, 2006 <1 Sept. 27, 2006 <1 Sept. 28, 2006 <1 Sept. 29, 2006 <1 Sept. 30, 2006 <1 Oct. 1, 2006 <1 Oct. 2, 2006 <1 Oct. 3, 2006 <1 Oct. 4, 2006 <1 Oct. 5, 2006 <1 Oct. 6, 2006 <1 Oct. 7, 2006 <1 Oct. 8, 2006 <1 Oct. 9, 2006 <1 Oct. 10, 2006 <1 Oct. 11. 2006 <1 Oct. 12, 2006 <1 Oct. 13, 2006 <1 LNW Fecal Count Jan. 2002 - May 2007 Oct. 14, 2006 <1 Oct. 15, 2006 <1 Date Sampled Fecal Count Oct. 16, 2006 <1 Oct. 17, 2006 <1 Oct. 18, 2006 <1 Oct. 19, 2006 <1 Oct. 20, 2006 <1 Oct. 21, 2006 <1 Oct. 22, 2006 <1 Oct. 23, 2006 <1 Oct. 24, 2006 <1 Oct. 25, 2006 <1 Oct. 26, 2006 <1 Oct. 27, 2006 <1 Oct. 28, 2006 <1 Oct. 29, 2006 <1 Oct. 30, 2006 <1 Oct. 31, 2006 <1 Nov. 6, 2006 <1 Nov. 13, 2006 <1 Nov. 20, 2006 <1 Nov. 27, 2006 <1 Dec. 5, 2006 <1 Dec. 12, 2006 <1 Dec. 18, 2006 <1 Dec. 28, 2006 <1 Jan. 2, 2007 <1 Jan. 9, 2007 <1 Jan. 16, 2007 <1 Jan. 23, 2007 <1 Jan. 30, 2007 <1 Feb. 6, 2007 <1 Feb. 13, 2007 <1 Feb. 19, 2007 <1 Feb. 26, 2007 <1 March 5, 2007 <1 March 14, 2007 <1 March 20, 2007 <1 March 27, 2007 <1 April 3, 2007 <1 April 4, 2007 <1 April 5, 2007 <1 April 6, 2007 <1 April 7, 2007 <1 April 8, 2007 <1 April 9, 2007 <1 April 10, 2007 <1 April 1.1, •2007 <1 April 12, 2007 <1 LNW Fecal Count Jan. 2002 - May 2007 007 <1 MIA007 <1 led M17, Fecal Count 007 <1 April07 <1 April07 <1 April 18, 2007 <1 A irl 19, 2007 <1 A ril 20, 2007 <1 April 21, 2007 <1 April 22, 2007 <1 A ril 23, 2007 <1 April 24, 2007 <1 April 25, 2007 <1 April 26, 2007 <1 April 27, 2007 <1 April 28, 2007 <1 April 29, 2007 <1 April 30, 2007 <1 Ma 1, 2007 <1 May 2, 2007 3 May 3, 2007 <1 May 4, 2007 <1 May 5, 2007 <1 May 6, 2007 550 May 7, 2007 <1 May 8, 2007 <1 May 9, 2007 <1 May 10, 2007 <1 May 11, 2007 32 May 12, 2007 <1 May 13, 2007 <1 May 14, 2007 <1 May 15, 2007 <1 May 16, 2007 200 May 17, 2007 <1 May 18, 2007 <1 May 19, 2007 <1 May 20, 2007 <1 May 21, 2007 <1 May 22, 2007 <1 May 23, 2007 <1 May 24, 2007 <1 May 25, 2007 <1 May 26, 2007 <1 May 27, 2007 <1