Sources

Every source behind our facts and guides, with the date we last checked it. When a source and our page disagree, the source controls.

Federal data

• Glossary (Geography) U.S. Census Bureau census.gov/programs-surveys/geography/about/glossary.html Checked 2026-10-04
• TIGERweb Census 2020 Incorporated Places and Census Designated Places (POP100, HU100) U.S. Census Bureau tigerweb.geo.census.gov/arcgis/rest/services/Census2020/Places_CouSub_ConCity_SubMCD/MapS… Checked 2026-10-04
• FEMA Flood Map Service Center FEMA msc.fema.gov/portal/home Checked 2026-10-04
• National Inventory of Dams web application (field definitions and help text) U.S. Army Corps of Engineers nid.sec.usace.army.mil/nid/ Checked 2026-10-04
• National Inventory of Dams Public Service (FeatureServer layer 0), Pennsylvania records U.S. Army Corps of Engineers geospatial.sec.usace.army.mil/dls/rest/services/NID/National_Inventory_of_Dams_Public_Ser… Checked 2026-10-04
• National Hydrography Dataset, Waterbody - Large Scale (The National Map) U.S. Geological Survey hydro.nationalmap.gov/arcgis/rest/services/nhd/MapServer/12 Checked 2026-10-04

Pennsylvania data

• eMapPA External Extraction layer 245 Municipalities Pennsylvania Department of Environmental Protection gis.dep.pa.gov/depgisprd/rest/services/emappa/eMapPA_External_Extraction/MapServer/245 Checked 2026-10-04
• eMapPA External Extraction layer 81 PFBC Access Areas (OWNER field not downloaded) Pennsylvania DEP / Pennsylvania Fish and Boat Commission gis.dep.pa.gov/depgisprd/rest/services/emappa/eMapPA_External_Extraction/MapServer/81 Checked 2026-10-04
• PA HABs Dashboard data layer HABS2018_2021_FIXED (feeds dashboard 9b653809b2724ff299dc1b5b3d1c546b) Pennsylvania HABs Task Force (PA DEP / PA Department of Health) services1.arcgis.com/Nifc7wlHaBPig3Q3/arcgis/rest/services/HABS2018_2021_FIXED/FeatureSer… Checked 2026-10-04
• Pennsylvania HABs Dashboard Pennsylvania HABs Task Force arcgis.com/apps/dashboards/9b653809b2724ff299dc1b5b3d1c546b Checked 2026-10-04
• PALS license search Pennsylvania Department of State pals.pa.gov/#!/page/search Checked 2026-10-04

Pennsylvania laws and regulations

• 68 Pa.C.S. Chapter 34 Protection of Purchasers (Condominiums) incl. § 3407 Pennsylvania General Assembly legis.state.pa.us/WU01/LI/LI/CT/HTM/68/00.034..HTM Checked 2026-10-04
• 68 Pa.C.S. Chapter 51 General Provisions (Planned Communities) incl. § 5102 Pennsylvania General Assembly legis.state.pa.us/WU01/LI/LI/CT/HTM/68/00.051..HTM Checked 2026-10-04
• 68 Pa.C.S. Chapter 54 Protection of Purchasers (Planned Communities) incl. § 5407 Pennsylvania General Assembly legis.state.pa.us/WU01/LI/LI/CT/HTM/68/00.054..HTM Checked 2026-10-04
• 68 Pa.C.S. Chapter 71 General Provisions (Real Estate Seller Disclosure) Pennsylvania General Assembly legis.state.pa.us/WU01/LI/LI/CT/HTM/68/00.071..HTM Checked 2026-10-04
• 68 Pa.C.S. Chapter 73 Seller Disclosures Pennsylvania General Assembly legis.state.pa.us/WU01/LI/LI/CT/HTM/68/00.073..HTM Checked 2026-10-04
• 68 Pa.C.S. Chapter 75 Home Inspections Pennsylvania General Assembly legis.state.pa.us/WU01/LI/LI/CT/HTM/68/00.075..HTM Checked 2026-10-04
• Pennsylvania Sewage Facilities Act (Act 537 of 1965) Pennsylvania General Assembly palegis.us/statutes/unconsolidated/law-information/view-statute?txtType=PDF&SessYr=1965&A… Checked 2026-10-04
• 25 Pa. Code Chapter 105 Dam Safety and Waterway Management Pennsylvania Code & Bulletin (Legislative Reference Bureau) pacodeandbulletin.gov/Display/pacode?file=/secure/pacode/data/025/chapter105/chap105toc.h… Checked 2026-10-04
• 49 Pa. Code § 35.305 Business name on advertisements Pennsylvania Code & Bulletin (Legislative Reference Bureau) pacodeandbulletin.gov/Display/pacode?file=/secure/pacode/data/049/chapter35/s35.305.html Checked 2026-10-04
• 58 Pa. Code Chapter 111 Special Regulations Counties Pennsylvania Code & Bulletin (Legislative Reference Bureau) pacodeandbulletin.gov/Display/pacode?file=/secure/pacode/data/058/chapter111/chap111toc.h… Checked 2026-10-04

Federal laws

• 12 CFR 1024.14 Prohibition against kickbacks and unearned fees eCFR (National Archives) ecfr.gov/current/title-12/section-1024.14 Checked 2026-10-04
• 24 CFR 100.75 Discriminatory advertisements statements and notices eCFR (National Archives) ecfr.gov/current/title-24/section-100.75 Checked 2026-10-04
• 42 U.S. Code § 3604 Legal Information Institute (Cornell) law.cornell.edu/uscode/text/42/3604 Checked 2026-10-04

Guidance pages

• Beltzville State Park Pennsylvania Department of Conservation and Natural Resources pa.gov/agencies/dcnr/recreation/where-to-go/state-parks/find-a-park/beltzville-state-park Checked 2026-10-04
• Prompton State Park Pennsylvania Department of Conservation and Natural Resources pa.gov/agencies/dcnr/recreation/where-to-go/state-parks/find-a-park/prompton-state-park Checked 2026-10-04
• Harmful Algal Blooms (HABs) Pennsylvania Department of Environmental Protection pa.gov/agencies/dep/programs-and-services/water/clean-water/habs Checked 2026-10-04
• Private Wells Pennsylvania Department of Environmental Protection pa.gov/agencies/dep/residents/my-water/private-wells Checked 2026-10-04
• Septic Systems Pennsylvania Department of Environmental Protection pa.gov/agencies/dep/residents/my-water/septic-systems Checked 2026-10-04
• Harmful Algal Blooms Pennsylvania Department of Health pa.gov/agencies/health/programs/environmental-health/habs Checked 2026-10-04
• Harmful Algal Blooms (HABs) Dashboard User Guide (July 2023) Pennsylvania Department of Health pa.gov/content/dam/copapwp-pagov/en/health/documents/topics/documents/environmental-healt… Checked 2026-10-04
• Buy a policy FEMA National Flood Insurance Program (FloodSmart) floodsmart.gov/get-insured/buy-a-policy Checked 2026-10-04
• Flood insurance eligibility FEMA National Flood Insurance Program (FloodSmart) floodsmart.gov/get-insured/eligibility Checked 2026-10-04
• What is my flood zone? FEMA National Flood Insurance Program (FloodSmart) floodsmart.gov/flood-zones-and-maps/what-is-my-flood-zone Checked 2026-10-04
• Homeowner checklist FEMA National Flood Insurance Program (FloodSmart) floodsmart.gov/get-insured/buy-a-policy/homeowner-checklist Checked 2026-10-04
• I've Got Your Number (license number prefixes) Pennsylvania Association of Realtors parealtors.org/blog/ive-got-your-number/ Checked 2026-10-04
• Lake Wallenpaupack (PFBC-Owned Lakes) Pennsylvania Fish and Boat Commission pa.gov/agencies/fishandboat/about-us/pfbc-lakes/lake-wallenpaupack Checked 2026-10-04
• Hydraulic Load Tests PSMA psma.net/hydraulic-load-tests/ Checked 2026-10-04
• Pennsylvania Septage Management Association PSMA psma.net/ Checked 2026-10-04
• System Inspections PSMA psma.net/system-inspections/ Checked 2026-10-04
• Private Water Systems Penn State Extension extension.psu.edu/private-water-systems Checked 2026-10-04
• Testing Your Drinking Water Penn State Extension extension.psu.edu/testing-your-drinking-water Checked 2026-10-04
• Private Wells and Water Systems Management Penn State Extension extension.psu.edu/private-wells-and-water-systems-management Checked 2026-10-04

Encyclopedia and directory pages

• County Municipalities Mercer County mercercountypa.gov/Municipalities/Municipalities.aspx Checked 2026-10-04
• 2026 Municipal Directory Monroe County monroecountypa.gov/getmedia/7ac49c2d-8690-4314-a98b-9c3537d1f5f6/2026_MunicipalDirectory.… Checked 2026-10-04
• Township and Borough Info Pike County pikepa.org/how_do_i/find_learn_about/new_page.php Checked 2026-10-04
• Township/Borough Websites Wayne County waynecountypa.gov/695/TownshipBorough-Websites Checked 2026-10-04
• Allegheny Reservoir Wikipedia en.wikipedia.org/wiki/Allegheny_Reservoir Checked 2026-10-04
• Eagles Mere Historic District Wikipedia en.wikipedia.org/wiki/Eagles_Mere_Historic_District Checked 2026-10-04
• Maurice K. Goddard State Park Wikipedia en.wikipedia.org/wiki/Maurice_K._Goddard_State_Park Checked 2026-10-04
• Lake Wallenpaupack Wikipedia en.wikipedia.org/wiki/Lake_Wallenpaupack Checked 2026-10-04
• Raystown Lake Wikipedia en.wikipedia.org/wiki/Raystown_Lake Checked 2026-10-04

Municipal pages (our link check)

• Municipal website, zoning and short-term-rental link check (compiled by Deed & Dock) Deed & Dock (WeldonPC) Each lake page links the municipality's own pages, with the date we checked them. Checked 2026-10-04

We keep a copy of each source we read, with a SHA-256 fingerprint, in our dataset files. See Methodology.