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Guidance details what a completed baseline inventory must include: service line and connector material categories, associated street addresses, corrections to Iowa Drinking Water Data Portal records, and procedures for making updates using the Service Line Inventory Manager or portal tools. The FAQ also addresses public accessibility requirements and defines “connectors.”",{"@graph":63,"@context":118},[64,80,101],{"@type":65,"itemListElement":66},"BreadcrumbList",[67,71,74,77],{"item":68,"name":69,"@type":70,"position":9},"https://docshare.wps.com","Home","ListItem",{"item":72,"name":10,"@type":70,"position":73},"https://docshare.wps.com/template/",2,{"item":75,"name":36,"@type":70,"position":76},"https://docshare.wps.com/template/forms/",3,{"item":78,"name":59,"@type":70,"position":79},"https://docshare.wps.com/template/epas-lead-and-copper-rule-improvements-faq-epas-lead-and-copper-rule-improvements-faq/241668/",4,{"url":78,"name":59,"@type":81,"image":82,"author":87,"headline":59,"publisher":90,"fileFormat":93,"inLanguage":57,"description":61,"dateModified":94,"datePublished":95,"encodingFormat":93,"isAccessibleForFree":96,"interactionStatistic":97},"DigitalDocument",{"url":83,"@type":84,"width":85,"height":86},"https://docshare.wps.com/thumbnails/epas-lead-and-copper-rule-improvements-faq-epas-lead-and-copper-rule-improvements-faq/241668.png","ImageObject",442,249,{"name":88,"@type":89},"Ophelia","Person",{"url":68,"name":91,"@type":92},"DocShare","Organization","application/pdf","2026-10-09","2026-09-12",true,{"@type":98,"interactionType":99,"userInteractionCount":47},"InteractionCounter",{"@type":100},"ViewAction",{"@type":102,"mainEntity":103},"FAQPage",[104,110,114],{"name":105,"@type":106,"acceptedAnswer":107},"What is the LCRI, and how does it compare to the LCRR?","Question",{"text":108,"@type":109},"The LCRI (Lead and Copper Rule Improvements) is an update made shortly before the LCRR compliance date. It staggers implementation so that parts of the LCRR take effect starting in October 2024, with the LCRI compliance date following later.","Answer",{"name":111,"@type":106,"acceptedAnswer":112},"When is the baseline inventory due under the LCRI?",{"text":113,"@type":109},"The baseline inventory is due on November 1, 2027.",{"name":115,"@type":106,"acceptedAnswer":116},"What does a completed LCRI baseline inventory need to include?",{"text":117,"@type":109},"It must include service line material identification (including lead, non-lead, galvanized requiring replacement, or lead status unknown), connector material identification (including no connector present when applicable), a street address for each service line if not already included, and resolution of data errors in the Iowa Drinking Water Data Portal from the October 2024 inventories. 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Additional frequently asked questions and responses may be added at a later date.  \nEPA webpages with additional resources include:  \n[https://www.epa.gov/ground-water-and-drinking-water/lead-and-copper-rule-improvements](https://www.epa.gov/ground-water-and-drinking-water/lead-and-copper-rule-improvements)[ ](https://www.epa.gov/ground-water-and-drinking-water/lead-and-copper-rule-improvements)[https://www.epa.gov/dwreginfo/lead-and-copper-rule-improvements-supporting-materials](https://www.epa.gov/dwreginfo/lead-and-copper-rule-improvements-supporting-materials)  \nQ1 . What is the LCRI compared to the LCRR?  \nThe LCRR is the Lead and Copper  Rule Revisions.  \nThe EPA made an update to the LCRR, called the LCRI, which is the Lead and Copper Rule Improvements, shortly before the compliance date of the LCRR. The LCRI was set up so that parts of the LCRR went into effect starting in October 2024 , and the LCRI compliance date would follow.  \nThe compliance date for the LCRI is November 1 , 2027.  \nLCRI Baseline Inventory  \nQ2 . When is the baseline inventory due?  \nA: November 1 , 2027  \nQ3 . What is the baseline inventory? How does it differ from our initial LCRR inventory?  \nA: The baseline inventory is the first inventory due under the Lead and Copper Rule Improvements ( LCRI) . It is the second service line inventory to be reported to the Iowa DNR. It builds upon the October 16 , 2024 initial LCRR inventory. The baseline inventory adds the requirement to identify all service line connector materials, and that a street address be associated with each service line.  \nThe baseline inventory ( LCRI) replaces the initial inventory ( LCRR) . There is not a requirement to submit annual updates to the initial inventory to the DNR before the baseline inventory is due, except where a system no longer has lines besides non-lead lines. (See Question 7. )  \nQ4 . What will be required in order to have a completed baseline inventory?  \nA: A baseline inventory for the LCRI will need to be submitted according to future instructions (see Q7 , below) and must include:  \n1. Service line material identification (for private and public lines) of either lead, non-lead, galvanized requiring replacement (GRR) , or lead status unknown.  \n2. Connector material identification of either lead, non-lead, lead status unknown, or no connector present.  \n3. Street address for each service line, if not already included.  \n4. Resolution of any data errors in the Iowa Drinking Water Data Portal ( IDWDP) from the October 2024 inventories as identified by DNR.  \nIt is required that the baseline inventory for the LCRI includes updates to materials where new or updated information is available.  \nQ5 . How often will I need to update this baseline inventory?  \nA: After the baseline inventory is submitted, there will be an annual, updated inventory submittal required by January 30th of each year starting in 2029.  \nQ6 . Do I have to keep submitting my inventory after the baseline inventory is submitted?  \nA: Each year following the baseline inventory, it is required to submit updates annually, unless your inventory consists of only non-lead service lines and non-lead connectors, or no connectors present. If you have any lead status unknown service lines or lead status unknown connectors, an annual update will be required. Updated inventory submittals are required by January 30th each year starting in 2029.  \nQ7 . When, where, and how do we make updates to our inventory?  \nA: The Iowa Drinking Water Data Portal now has a new Service Line Inventory Manager feature to allow inventory updates to be made directly online at any time instead of only via Excel template upload. Inventory templates can still be uploaded in the p","cbCaieb82Qmot45d","https://ap.wps.com/l/cbCaieb82Qmot45d","pdf",114084,"English","# EPA’s Lead and Copper Rule Improvements FAQ\n## LCRI vs. LCRR\n## Baseline inventory due date\n## Baseline inventory requirements\n## Updating the inventory\n## Public accessibility and connector definition","[{\"question\":\"What is the LCRI, and how does it compare to the LCRR?\",\"answer\":\"The LCRI (Lead and Copper Rule Improvements) is an update made shortly before the LCRR compliance date. It staggers implementation so that parts of the LCRR take effect starting in October 2024, with the LCRI compliance date following later.\"},{\"question\":\"When is the baseline inventory due under the LCRI?\",\"answer\":\"The baseline inventory is due on November 1, 2027.\"},{\"question\":\"What does a completed LCRI baseline inventory need to include?\",\"answer\":\"It must include service line material identification (including lead, non-lead, galvanized requiring replacement, or lead status unknown), connector material identification (including no connector present when applicable), a street address for each service line if not already included, and resolution of data errors in the Iowa Drinking Water Data Portal from the October 2024 inventories. Updates to materials are required when new or updated information is available.\"}]","EPA's Lead and Copper Rule Improvements FAQ - EPAs Lead and Copper Rule Improvements FAQ | PDF"]